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Socket weld tee is maked 90° branch from the main run of pipe. Socket weld tee is extensively used for the attachment of end sections of pipes to regulate the consistent flow of liquids or gases. The most common socket weld tees have the same inlet and outlet sizes, but ‘Reducing’ socket weld Tees are available as well. As Socket weld tee can also be used in place of thread fittings, so there will exist much smaller leakage. Although they are used in many industries, we should note that as socket weld tees are not available for Ultrahigh Hydrostatic Pressure (UHP) in food industry, which may produce virtual leaks.Product name : Socket Weld Tee Nominal Diameter Depth of Socket Dimension of Socket Wall Thickness Center to Bottom of Socket A Cmin Tee 45°Elbow DN NPS Jmin d1 3000LB Sch80 6000LB Sch160 9000LB XXS 3000LB Sch80 6000LB Sch160 9000LB XXS 3000LB Sch80 6000LB Sch160 9000LB XXS 6 1/8 1010.7 3.2 3.5 – 11 11 – 8 8 –81/41014.13.34.0–1115–88–103/81017.53.54.4–1315–812–151/21021.84.15.28.2161925111316203/41327.44.36.18.61922281314182511334.25.07.010.0222732141822321.1/41342.95.37.010.6273235182122401.1/21348.35.67.811.23238382125255021361.16.19.512.2384141252929652.1/21676.9(73.8)7.712.5–4157–2932– 8031689.88.3 13.8 –5764– 3235 – 100 4 19115.5 9.4 – – 66 – – 42 – – Note: 1、Average of socket wall thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas. 2、Upper and lower values for each size are the respective maximum and minimum dimensions.

What is a flushing ring/calibration? ​A flushing ring/calibration is a solid ring that is clamped between the process flange and the remote seal attached to a transmitter. It is used with flanged or pancake style remote diaphragm seals. Commonly, they have one or two threaded holes in the side of the ring called, “flushing connections.” It is unusual to order a flushing ring/calibration without flushing connections, but it can be used without flushing connections as a spacer or a heat dissipater. They are sometimes called flushing rings, because the flushing connections on the side of the ring allow the user access to flush out buildup on their process diaphragm. The main advantage is that you can you can perform this task without disconnecting the remote seal from the process flange. They are sometimes called calibration rings, because the flushing connections on the side of the ring allow the user to apply a known pressure source, and consequently calibrate the unit against that known pressure. This can be accomplished by sandwiching the calibration ring between the remote seal and a blank process flange. flushing ring/calibrations are offered on the EJX118A, EJX210A, EJX438A, EJA118E, EJA210E, EJA438E, EJX118B, EJX210B and EJX438B as options in the model code sequence. flushing ring/calibrations are also offered on seals from WIKA and PIC. Flushing Rings are used for flushing and bleeding of diaphragm process connection of sealed pressure gauges. It lighthen and speed up the work to clean process lines.These flushing rings are avialble for Stiko PBS, PMX and Differentials diaphragm seal range of gauges. Flushing ring is used for flushing solution combined with diaphragm seals. This type of flushing ring is clamped between process nozzle and diaphragm seal. The flushing ring can be combined with the BF and BRF seal as well as the BC and BRC type. Standard Features • The fushing ports allow the washing out of particles accumulated in front of the membrane. • The pressure chamber can be vented or drained or flled with a cleaning liquid and subsequently fushed, depending on the requirement. • Various nominal widths and forms allow adaption to the respective process fange. See Optional Features. • Standard fushing connection: 1/2 NPT female • Sealing face: – Acc. to EN 1092-1 Form B1 – Acc. to ASME B 16.5 RF • Materials: F53/316/316L/1.4401/1.4404,etc Dimensions of flushing ring Flushing ring with flushing bore(s) FLANGE CONNECTION FOLLOWING DIN EN 1092-1 DNPN in barDimensions in mm [in]Weight in kg [lbs]Ddh5016 … 100102 [4.016]62 [2.441]  30 [1.181] 1.10 [2.43]8016 … 100138 [5.433] 92 [3.622]  30 [1.181] 1.90 [4.19]10016 … 1000 162 [6.378]78] 92 [3.622]  30 [1.181] 3.15 [6.95]12516 … 100188 [7.402]126 [4.961] 30 [1.181] 3.50 [7.72] FLANGE CONNECTION PER ASME B16.5 DNClassDimensions in mm [in]Weight in kg [lbs]Ddh2″ 150 … 60092 [3.622]62 [2.441] 30 [1.181] 0.60 [1.323]3″ 150 … 600127 [5.000]92 [3.622]  30 [1.181] 1.05 [2.315]4″ 150 … 600157 [6.181]78] 92 [3.622]  30 [1.181] 2.85 [6.283]5″ 150 … 600185.5 [7.303]126 [4.961] 30 [1.181] 3.30 [7.275] Applications • Flush rings are used for diaphragm seals in order to prevent clogging of the instrument connection. • The fush ring is mounted between the process fange and the diaphragm seal.

Duplex stainless steel pipe fittings, it has high strength, excellent impact toughness and superior all and part of the association, strong resistance to decay. Duplex stainless steel pipe fittings with 316 l and 317 l austenitic stainless steel pipe fittings, duplex stainless steel 2205 in the resistance to pitting spots and cracks Much better, it has a high resistance to decay, and austenite match, its lower coefficient of thermal contraction, higher thermal conductivity. Use the categories: Pressure vessel, high pressure storage tank, high-pressure pipe, heat exchange device (chemical processing industry). Oil and natural gas pipe, heat exchange pipe fittings such as seawater resistance to low temperature heat exchange device of nitric acid and condenser and accessories. Secondary characteristics: high strength, excellent impact toughness and excellent the whole and partial stress decay resistance ability. Useful, for example: consumer soda with water heat exchange device and refinery hydrocracking air cooler, refinery distillate of the tower.

One major requirement in piping design is to provide adequate flexibility for absorbing the thermal expansion of the pipe. However, due to lack of quick method of checking, pipings are often laid-out to be either too stiff or too flexible. In either case, valuable time and material are wasted. This article presents some of the quick methods for checking piping flexibility. These methods include visual, hand calculation, and micro computer approaches. They are all quick and easy for designers to use in planning their layouts. Once the designers have taken care of the flexibility problem, the iterative procedure between the stress engineers and the designers become simpler. The project schedule can also be improved. Piping flexibility As the pipe temperature changes from the installation condition to the operating condition, it expands or contracts. In the general term, both expansion and contraction are called thermal expansion. When a pipe expands it has the potential of generating enormous force and stress in the system. However, if the piping is flexible enough, the expansion can be absorbed without creating undue force or stress. Providing the proper flexibility is one of the major tasks in the design of piping system. Piping is used to convey a certain amount of fluid from one point to another. It is obvious that the shorter the pipe is used the lesser the capital expenditure is required. The long pipe may also generate excessive pressure drop making it unsuitable for the proper operation. However, the direct shortest layout generally is not acceptable for absorbing the thermal expansion. Figure 1 shows what will happen when a straight pipe is directly connected from one point to another. First, consider that only one end is connected and the other end is loose. The loose end will expands an amount equal to  Δ = e L However, since the other end is not loose, this expansion is to be absorbed by the piping. This is equivalent to squeezing the pipe to move the end back an ~ distance. This amount of squczzing creates a stress of the magnitude  S = E (Δ/L) = E e Figure 1 Where, Δ = thermal expansion, in L e = expansion rate, in/in L = pipe length, in s = axial stress, psi F E = modulus of elasticity, psi A = pipe cross section area, inZ F = axial force, lbs The force required to squeeze this amount is  F = A S = A E e Take a 6-inch standard wall carbon steel pipe for instance, an increase of temperature from 70F ambient to 300F operating creates an axial stress of 42300 psi and an axial force of 236000 lbs in the pipe. These are excessive even though the temperature is only 300F. It is clear that the straight line direct layout is not acceptable to most of the piping, Flexibility has to be provided. Expansion loop Piping flexibility are provided in many different ways. The turns and offsets needed for running the pipe from one point to another provides some flexibility by themself. This inherent flexibility may or may not be sufficient depending on the inpidual cases. Additional flexibility can be provided by adding expansion loops or expansion joints. In the straight line example discussed above, the stress can be reduced by loops installed as shown below. The idea is to provide some pipe perpendicular to the direction of expansion. In this way when the pipe expands it bends the loop leg first before transmitting any load to the anchor. The longer the loop leg the lesser the force will be created. The force created is inversely proportional to the cube of the loop length and the stress generated is roughly Hard Piping inversely proportional to the square of the loop length. The loop sometimes can take considerably more space and piping than what is available, or economically justifiable. This is especially true for large high temperature low pressure pipings. In this case the better method is to use expansion joint. Expansion joints are more sophisticated than the pipe loops which are just extra lengths of the same piping. For this and other reasons, engineers tend to favor piping loops over expansion joints. However, expansion joints can be used effectively in many applications when they are properly designed. One of the major requirements in the design of expansion joint system is to install sufficient restraints for maintaining the stability. This article deals mainly the loop approach. The Critical Path In designing a plant, the piping is generally routed or laid-out by the piping designers then checked by the stress engineers. There is a marked difference in the layout done by the experienced and the inexperienced designers. The experienced designers know the importance of the flexibility. However, they tend to provide too much flexibility in contrast to the inexperienced ones who tend to provide little flexibility. In either case, the resulL is an over priced project. The layout done by an inexperienced designer is normally too stiff because the designer does not know how or too timid to add loops or offsets. If a piping system is too stiff, the stress engineer will almost certain to find it out. The stress engineer will send the design, with recommended loops, back to the designer for revision. At this time, the designer have made some more layouts in the same area making the revision very difficulty. On the other hand, a layout done by an experienced designer often contains the loops which are excessive or not needed. The excessive loops are normally maintained without revision, becuase it is a common prctice not to change something which works. The experienced one might have saved the manhour needed for the revision. The cost of the excessive loops can be prohibitive. The cost of the project can be reduced substantially if ~he right amount of flexibility is built in the piping at the initial layout stage. This requires some quick methods which can be used br the designers to check the piping flexibility. Reference(s): L.C. Peng, Peng Engineering, Houston, Texas Quick Check on Piping Flexibility Calculating The first step in accommodating thermal movement is to compute the exact change in the linear length of the piping system over the distance of interest, along with a suitable safety factor. The actual expansion of 100-foot pipe lengths has been computed at different temperatures for the most common piping materials (carbon steel, stainless steel and copper tubing) and are shown in the table on the right. These values should not be applied to pipe of alternate materials as they will vary. Expansion coefficients may vary 5% or more when obtained from different sources and should be taken into account. Thermal Expansion of Pipe Inches per 100 ft. mm per 100 metersTemp. F/CCarbon SteelCopperStainless Steel-40 -40-0.288 -24.0-0.421 -35.1-0.461 -38.4-20 -28-0.145 -12.1-0.210 -17.4-0.230 -19.00 -170 00 00 020 -60.148 12.50.238 19.70.230 19.032 00.230 19.00.366 30.50.369 30.840 40.300 24.90.451 37.70.461 38.460 150.448 37.40.684 57.10.691 57.780 260.580 48.20.896 74.80.922 76.8100 370.753 62.71.134 94.51.152 96.1120 480.910 75.81.366 113.91.382 115.2140 601.064 88.61.590 132.61.613 134.5160 711.200 100.11.804 150.31.843 153.6180 821.360 113.22.051 170.92.074 172.9200 931.520 126.62.296 191.32.304 191.9212 1001.610 134.22.428 202.42.442 203.4220 1041.680 140.12.516 209.72.534 211.3230 1101.760 146.72.636 219.82.650 220.8260 1262.020 168.3… …… …280 1372.180 181.8… …… …300 1482.350 195.9… …… …320 1602.530 211.0… …… …340 1712.700 225.1… …… …350 1762.790 232.6… …… … An example illustrating the use of the table above follows: Given: 240-foot long carbon steel pipe Maximum operating temperature = 220°F (104°C) Minimum operating temperature = 40°F (4°C) Temperature at time of installation = 80°F (26°C) Calculation: From the table on the right, carbon steel pipe expansion 220°F (104°C) 1.680″ per 100 ft. of carbon steel pipe 40°F (4°C) 0.300″ per 100 ft. of carbon steel pipe Difference: 1.380″ per 100 ft. of carbon steel pipe for temperatures 40°F to 220°F Therefore, 240-feet of pipe = 240/100 (1.380) = 3.312″ This 3.312″ of movement should have a suitable safety factor applied, which varies as determined by the system designer, to account for any errors in predicting operating extremes, etc. These examples were calculated without a safety factor applied. To determine the positioning of the expansion joint at the time of installation: Installation to cold condition (80°F to 40°F) 80°F (26°C) 0.580″ per 100 ft. 40°F (4°C) 0.300″ per 100 ft. Difference: 0.280″ per 100 ft. or 0.672″ per 240 ft. Installation to hot condition (80°F to 220°F) 220°F(104°C) 1.680″ per 100 ft. 80°F(26°C) 0.580″ per 100 ft. Difference: 1.100″ per 100 ft. or 2.640″ per 240 ft. Therefore, the expansion joint is to be set up with at least the capability to allow 0.672″ of pipe contraction and at least 2.640″ of pipe expansion when installed at 80°F (26°C). Source: wermac

2nd OIL & GAS AFRICA 2016 – International Trade Exhibition & Conference On Oil & Gas Industries 07 – 09 July, 2016, Mlimani Conference Centre, Dar-es-Salaam, Tanzania ABOUT OIL & GAS TANZANIA 2016 It is truly remarkable how East Africa, and specifically Tanzania has in a short period of time become the main focus of attention as a source of new global gas supply. Large amounts of foreign investments have been made in the Tanzanian Oil and Gas industry after its discovery. These investments have made East Africa the next lucrative market in the international scenario. Since 2010, Tanzania has witnessed further exploration and discoveries of significant quantities of natural gas both on and off-shore. The 2nd Oil & Gas Tanzania Africa – Int’l Trade Exhibition, will be held from 07 – 09 July, 2016. This event will be the hub for key players in the Oil and Gas industry, attracting leading oil, gas and petroleum companies from around the world. Oil & Gas Africa will offer participants the opportunity to showcase the industry’s latest achievements and technologies while networking with key figures from the region’s oil and gas sector. The exhibition brings the industry together in a forum that is conducive to business. This event is not only a key international event on Oil and Gas exploration in Tanzania but also an important platform for establishing and building business relations globally. Website: www.expogr.com/tanzania/oilgas/

A flush ring according to the chemical group’s specifications. It is mounted with a flange connection located between the primary isolation valve and the diaphragm seal. One or two ventilation and flushing connections are located on the outside of the flush ring. If the ring only has one connection, the cavity between diaphragm seal and primary isolation valve can be flushed in a controlled manner – for example, via a connected hose and a suitable collection container. The ring can, for example, be filled with compressed air or a cleaning fluid via the second connection and flushed out depending on requirements which the corresponding medium places on the system operator. Types of flush rings Flush Ring Type S Flush Ring Type G Flush Ring Type D Standard Features • The fushing ports allow the washing out of particles accumulated in front of the membrane. • The pressure chamber can be vented or drained or flled with a cleaning liquid and subsequently fushed, depending on the requirement. • Various nominal widths and forms allow adaption to the respective process fange. See Optional Features. • Standard fushing connection: 1/2 NPT female • Sealing face: – Acc. to EN 1092-1 Form B1 – Acc. to ASME B 16.5 RF • Materials: F53/316/316L/1.4401/1.4404,etc Optional Features • Flushing connection with different female threads: G1/2, G1/4, 1/4NPT • Pipe plugs and various valves • Other sealing faces, e.g. groove, tongue, RTJ • Exotic Alloys, e.g. Duplex, Alloy C-276, Alloy 625 • Flush rings for sour gas service are available in accordance with NACE MR0175/ MR0103 and ISO 15156 by default. • Special cleaning • Inspection certifcate 3.1 acc. to EN 10 204 • Flush Ring Type G and Dual Flange Style Type D – Concentric or excentric (flush ring type g only) – 1 or 2 vent / fushing connections – PFA lining optional (flush ring type g only) – Adapting of nominal pipe size (NPS) – Allows disassembly of diaphragm seal without removing the fush ring Applications • Flush rings are used for diaphragm seals in order to prevent clogging of the instrument connection. • The fush ring is mounted between the process fange and the diaphragm seal.

What is a socket weld cross? Socket weld cross makes 90° branch from the main run of pipe. Socket weld cross is broadly used to provide leak free and torque free sealing in any piping or tubing connection. Ideal for piping applications and providing precise flow of water, these socket weld crosses join pipes to valves and fittings. This welds cross remove the requirement for the use of special clamps for alignment prior to the end fit-up welding. A Socket weld cross allows four direction transition in pipeline fields.the fitting not only played a role in conection the cossing pipeline but also can control the volume by designed with different dimension of cross ends,sometimes we also adopt rib to reinforce the mechanical property when face hard woeking conditions. Pattern Weld Seamless Nominal size 1/2”-48” (DN15-DN1200) 1/2”-20” (DN15-DN500) Wall thickness 2~100mm 2~50mm Bend radius SCH5S-SCH160 ,XXS SCH5-SCH160 Type stright cross reducing cross stright cross reducing cross Applications : Petroleum Industry Electric power Industry Chemical Industry Metallurgy Industry Product name : socket weld cross Nominal Diameter Depth of Socket Dimension of Socket Wall Thickness Center to Bottom of Socket A Cmin Cross 45°Elbow DN NPS Jmin d1 3000LB Sch80 6000LB Sch160 9000LB XXS 3000LB Sch80 6000LB Sch160 9000LB XXS 3000LB Sch80 6000LB Sch160 9000LB XXS 6 1/8 1010.7 3.2 3.5 – 11 11 – 8 8 –81/41014.13.34.0–1115–88–103/81017.53.54.4–1315–812–151/21021.84.15.28.2161925111316203/41327.44.36.18.61922281314182511334.25.07.010.0222732141822321.1/41342.95.37.010.6273235182122401.1/21348.35.67.811.23238382125255021361.16.19.512.2384141252929652.1/21676.9(73.8)7.712.5–4157–2932– 8031689.88.3 13.8 –5764– 3235 – 100 4 19115.5 9.4 – – 66 – – 42 – – Note: 1、Average of socket wall thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas. 2、Upper and lower values for each size are the respective maximum and minimum dimensions.

The 05th Oil & Gas Africa – Int’l Trade Exhibition 10 – 12 June, 2016, Nairobi, KENYA Oil & Gas Africa – The Gateway to the East African Oil & Gas Industry The 05th Oil & Gas Africa – Int’l Trade Exhibition, 10 – 12 June, 2016, is a hub for key players in the oil and gas community, attracting leading oil, gas and petroleum companies from around the world. This regional trade event serves the resource-rich east African region and city of Nairobi; Kenya’s major centre of oil and gas activity, for many of the leading operators in the country. Kenya has attracted oil & gas companies not only because of its ports and strategic location but also because the government is keen not to be left out of the exploration. Oil discoveries in Uganda and Kenya and gas deposits found off Tanzania and Mozambique have turned east Africa into a hot spot for hydrocarbon exploration. Trade visitors from all over East & Central Africa are being invited directly as well as in collaboration with several regional trade bodies in Kenya, Tanzania, Ethiopia, Uganda, Somalia, Mozambique & Congo. Though Kenya by itself is one of the biggest markets in Africa, major emphasis is being laid upon attracting traders and importers from neighboring countries. Oil & Gas Africa will offer participants the opportunity to showcase the industry’s latest achievements and technologies while networking with key figures from the region’s oil and gas sector. The exhibition brings the industry together in a forum that is conducive to business. Website: www.expogr.com/kenyaoil/index.php

Stamping stainless steel flange and depends upon both the fast change effects of passivation process, and also in stainless steel pipe bending the tail information itself, the influence of the detailed elements no stamping stainless steel flange Lou yuan meat and metallographic structure of stainless steel, stainless steel reduced operating condition, etc. The process feature is fat slab has the central must, dispel continuous casting slab core must analysis the fat into the step progress stainless steel punching bending the tail pipe quantity to quality the key technical problem solving. All stainless steel stamping flange machine, such as plating or the rest of the coatings are for, in general it is beforehand disposal (including pickling to black skin, throwing light, etc.) through the passivation disposal, ability of the scrap application or remove the failure parts. Passivation can progress stamping stainless steel flanges outside the environment of thermal stability, prevent stamping stainless steel flange part of the corruption, the stainless steel punching bending the tail in the existence of foot enough clean degree and borrow to rule out without rust steel stamping flange surface warm farmers oxide reduction. Stainless steel flange matters needing attention are as follows: long stored stainless steel flange, should be timely check, often appear the processing surface should be clean, remove dirt, neatly stored in a dry indoor drafty, piled up or in open air shall be strictly prohibited. Stainless steel flange ball valve, cut-off valve, gate valve, when used only for full open or full close, do not allow for regulating flow, lest sealing surface erosion, accelerated wear and tear. Gate and thread on the globe valve with pour sealing device, hand wheel spin to the surface of the upper head for a long time will not rust, won’t corrode. Often keep dry and drafty stainless steel flanges, keep clean and tidy, deposit deposit according to the accurate method. Stainless steel flanges installation, can press the stainless steel flanges connection device in pipeline directly, carried out in accordance with the use of the location of the installation. In general, can be installed on the pipeline at any position, but need to test for easy manipulation, pay attention to the flow direction of medium by the stainless steel flange should be high, the longitudinal disc below stainless steel flange can only be installed horizontally. Stainless steel flange should pay attention to when installing sealing to prevent leakage phenomenon, on the affect the normal operation of the pipeline. Stainless steel flange have important roles in installation and value, in a certain environment and the use of good operating medium.

Calculation of stainless steel pipe fittings materials Stainless steel pipe fittings are pided into many kinds, elbow, tee, sleeve, reducers, such as, and bearing in type, card type, butt type. Offer money to see what material and what process. , the formula of every enterprise pergent samples, and also more than a formula, strange size tee in price have can differ greatly, which is due to differences in component and process incurred. The formula for calculating the actual weight of the stainless steel pipe per meter: w=0.02466 (D-S), the w refers to the actual weight per meter of stainless steel pipe fittings, D refers to the nominal diameter of stainless steel pipe fittings, s refers to the nominal wall thickness. Security refers to the premise and guarantee for honing standard rules now rules. The premise of guarantee needs in accordance with the standard rules and guarantee stop training, test results for the standard rules. The inspection will include the premise of chemical composition and mechanical function, size deviation, rough quality process function.

Spiral wound gasket for heat exchangers are designed for heat exchangers, it can be with or without inner and outer rings.This style spiral wound gasket is for heat exchangers where pass bars are required. The outer portion is of standard spiral wound construction. The rib portion is normally of single or double jacketed style. Spiral Wound Gasket for Heat Exchangers * The outer wound nose to ensure correct sealing element location in the flange recess. * A spiral wound sealing element to ensure a positive seal under fluctuating temperature and pressure conditions. * A solid metal inner ring to protect the sealing element and act as a compression stop. * Can be supplied with pass partition bars in any configuration. Pass bars are secured to the inner ring can be supplied in either solid metal or double jacketed construction. Typical Applications * The gaskets which with outer rings are primarily designed for TEMA male and female flanges. * Gaskets are custom built to suit the design conditions of inpidual heat exchanger vessels. Specifications Spiral wound with inner or outer or with partition ribs acts a pass bars. Manufactured to customer design.

spiral wound gasket is formed of V-shaped Metallic strip and soft non-metallic filler. Support rings, inside and Outside the spiral, improve the gasket’s handing, fitting and Versatility. Depend on its excellent compression resilience, it is suitable for sealing spots where the alteration of temperature and pressure are frequent. Spiral Wound Gasket is one of the widely used seals, the spiral wound gasket depends on the mechanical characteristics of a formed metal strip which works as a spring, offering a better resilience under fluctuated pressure & temperature. They are widely used in the industrial field and fluid sectors. Type & Advantage: IR Type Spiral Wound Gasket IR Inner Ring Type ● Solid inner metal ring acts as a compression stopper. To prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion, damages of gasket between flange bore and the inside diameter, the annular space is filled up by solid inner metal ring. ● Suitable for male and female pipe flanges. ● General duties. CG Type Spiral Wound Gasket CG Outer Ring Type ● Solid outer ring accurately locates the gasket on the flange face to give the additional radial strength to prevent the gasket blowout and acts as a compression limiter. In case of installing the outer ring, it is very easy to install the gasket to flange face because the end of outer ring will touch at bolts. ● Suitable for use with flat face and raised face flanges. For class 900 and above an internal ring is recommended. ● General and critical duties. CGI Type Spiral Wound Gasket CGI Inner & Outer Rings Type ● A inner ring and outer ring type gasket will give an additional compression limiting stopper for gasket inner and outer side. It will prevent the corrosions on flange face at annular space. ● Suitable for use with flat face and raised face flanges and specified for high pressure / temperature service – Class 900 and above or where corrosive or toxic media are present. ● General and critical duties. Typical Applications * Pipe, valve, pump, thermal exchange, condensing tower, plain hole and man hole of flange, etc. * Petrochemical, chemical, mechanical manufacturer, power station, metallurgy, shipbuilding, medical and pharmaceutical unclear power station and navigation, etc. Prime Features * Gasket are made in a wide variety of sizes and shapes. * Combinations of metal strip and filler are selected to suit the specific fluid media and operating conditions. * Quick to install and remove * Make gaskets suitable for high pipeline pressure on flat or raised flange faces. * Temperatures from cryogenic up to 1000 °C Specifications & Materials * Products are manufactured in accordance with all relevant gasket standards to suit flange designations: ASME B 16.20, ASME B 16.5, BS1560, ASME B 16.47 A (B), BS EN 1092, DIN, JIS, and NF, etc. * Color cord as ASME B 16.20 on request. * Provide complete range of materials spiral wound gaskets, combining the performance of the materials. Including Monel 400/ Inconel 600,625,800,825/ Hastelloy B3/ Hastelloy C276/ Titanium,etc. Range of fillers: Graphite, PTFE, Non-asbestos, Mica, etc. Ring & Strip Materials Minimum Maximum Guide Ring Color Code Material F C F C Abberviation SS304 -320 -195 1400 760 304 Yellow SS316L -150 -100 1400 760 316L Green SS347L -150 -100 1400 760 317L Maroon SS321 -320 -195 1400 760 321 Turquoise SS347 -320 -195 1700 925 347 Blue Carbon Steel -40 -40 1000 540 CRS Silver Alloy 20 -300 -185 1400 760 A-20 Black Filler Materials Minimum Maximum COT Stripe Color Code Material F C F C Abberviation Flexible Graphite -350 -212 950 510 F.G. Gray PTFE -400 -240 500 260 PTFE White Ceramic -350 -212 2000 1090 CER Light Green Mica Graphite -350 -212 1100 590 MICA-GRA Pink Spiral Wound Gaskets Package Types To ensure that clients receive the highest quality of spiral wound gaskets, Spiral Wound Gaskets are packaged with the utmost care to prevent damage during shipping to the job site, please see below: * Between 1/2” ~ 24” gaskets are packaged by plastic clips each 10 pcs.  * Up to 24” gaskets packaged by soft cotton tape each. How to Order 1.Nominal pipe size or specific gasket dimensions 2.Pressure rating 3.Winding and filler materials 4.Centering / outer ring or inner ring material