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Cast steel diaphragm ball valve, PTFE lined, flanged ends, DN25, WCB material
Cast steel diaphragm ball valve PTFE inlined flange end
Cast steel diaphragm ball valve PTFE inlined bolted bonnet
Cast steel diaphragm ball valve PTFE inlined iso 5211

Cast Steel Diaphragm Ball Valve – PTFE Lined, Flanged Ends, DN25, WCB Material

Technical Specifications:

1. Design and manufacture according to: API 6D, API 608, BS 5351;
2. Connection flange ends according to: ANSI B16.5;
3. Test and inspection according to: API 598.
4. Structure features: floating ball;
5. Material conform to : ANSI/ASTM
6. Main Material: A105(N)/WCB, LF2/LCC, F304(L)/CF8, F316(L)/CF8M, etc.

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Product Summary

The cast steel diaphragm ball valve is designed for corrosive environments using ASTM A216 WCB cast steel and PTFE lining, offering excellent resistance to acids, alkalis, and chemicals. With flanged ends, it ensures easy installation in pipelines without welding. The diaphragm seal prevents media leakage into the stem area, maintaining system hygiene and extending service life. Rated at 16 bar (Class 150), this valve complies with ASME B16.34 and is 100% tested per API 598. Ideal for water treatment, chemical processing, and food-grade applications. Trust SFANVALVE for precision-engineered cast steel diaphragm ball valves that deliver reliable performance in harsh conditions.

BrandSFAN VALVE OR "OEM"
Flow boreStandard bore or Full bore
MaterialCarbon steel, Stainless steel, Alloy steel or other
DimensionDN10(1/4") to DN100(4")
Class150~2500
MediumWater, oil &gas.
Temperature-196℃(cryogenic design) to 560℃
Valve test100% quantity tested before delivery
Valve guarantee18 months after shipments and 12 months after installed
PackingPlywood or carton cases
Delivery time7 days to 30 days
Place of OriginZhejiang, China

3D VIDEO

Catalog details:

浮动球阀尺寸 副本.webp e1791967159988

Pressure
rating		Norminal
Diameter		FlangedButt
welding		Raised face flangeCast steelForged steelWeight(kg)Weight(kg)
ClassNPSDNdL(RF)L(RTJ)L(BW)DD1D2fbN-φdWHHCast steelForged steel
1501/2"1513108-1409060.535294-φ1614080782△
1503/4"2019117-15210070432104-φ1614086822.5△
1501"2525127-16511079.5512114-φ1614098953.5△
1501¼"3232140-17811589642114-φ161801061006.5△
1501½"4038165-19012598.5732134-φ161801331287.5△
1502"5050178191216150120.592214.54-φ192001381379△
1503"8075203216283190152.5127217.54-φ1930017514319△
1504"100100229241305230190.5157222.58-φ2265023522336△
1506"150150394406457280241.52162248-φ2280028527879△
1508"200201457470521345298.52702278-φ221000342336160△
3001/2"1513140-1409566.5352134-φ1614080782.5△
3003/4"2019152-15211582.543214.54-φ1914086823.6△
3001"2525165-16512589512164-φ1914098955△
3001¼"3232178-17813598.564217.54-φ191801061008.5△
3001½"4038190-190155114.573219.54-φ2218013312810△
3002"5050216232216165127922218-φ1920013813712△
3003"8075283298283210168.51272278-φ2230017514828△
3004"100100305321305255200157230.58-φ2265023522346△
3006"15015040341945732027021623512-φ22800285278104△
3008"20020150251852138033027024012-φ251000342336208△
6001/2"1513165-1659566.535714.54-φ1614080785△
6003/4"2019190-19011582.5437164-φ1914086767△
6001"2525216-2161258951717.54-φ191801101069△
6001¼"3232229-22913598.5647214-φ1920011511013△
6001½"4038241-241155114.573722.54-φ2225013512317△
6002"5050292295292165127927268-φ1930015214021△
6003"8075356359356210168.51277328-φ2265022421343△
6004"100100432435432275216157738.58-φ2580024823885△

Part Materials And Main Parameters

Nominal diameter(in)NPS 1/2～8
Nominal pressure(Class)Class150～Class600
Material of partsNoPart NameCarbon SteelStainless Steel
Material of parts1BodyASTM A105ASTM A182 304ASTM A182 316ASTM A182 304LASTM A182 316L
Material of parts2StudA193 B7MA193 B8A193 B8MA193 B8A193 B8M
Material of parts3BallASTM A105 • ENPASTM A182 304ASTM A182 316ASTM A182 304LASTM A182 316L
Material of parts4SeatPTFE/NYLON/PEEK/PPLPTFE/NYLON/PEEK/PPLPTFE/NYLON/PEEK/PPLPTFE/NYLON/PEEK/PPLPTFE/NYLON/PEEK/PPL
Material of parts5Anti-fire gasketSST＋GraphiteSST＋GraphiteSST＋GraphiteSST＋GraphiteSST＋Graphite
Material of parts6BonnetASTM A105ASTM A182 304ASTM A182 316ASTM A182 304LASTM A182 316L
Material of parts7Anti-static deviceCombined partsCombined partsCombined partsCombined partsCombined parts
Material of parts8StemASTM A182 F6aASTM A182 304ASTM A182 316ASTM A182 304LASTM A182 316L
Material of parts9Thrust bearingPTFEPTFEPTFEPTFEPTFE
Material of parts10Sliding bearingPTFEPTFEPTFEPTFEPTFE
Material of parts11O RingVITONVITONVITONVITONVITON
Material of parts12Anti-fire gasketSST＋GraphiteSST＋GraphiteSST＋GraphiteSST＋GraphiteSST＋Graphite
Material of parts13Seal glandASTM A105 • ENPASTM A182 304ASTM A182 316ASTM A182 304LASTM A182 316L
Material of parts14Socket head cap screwA193 B7MA193 B8A193 B8MA193 B8A193 B8M
Material of parts15PackingGraphiteGraphiteGraphiteGraphiteGraphite
Material of parts16Packing bushingASTM A182 F6aASTM A182 F6aASTM A182 F6aASTM A182 F6aASTM A182 F6a
Material of parts17Packing glandASTM A216 WCBASTM A216 WCBASTM A216 WCBASTM A216 WCBASTM A216 WCB
Material of parts18Socket head cap screwA193 B7MA193 B7MA193 B7MA193 B7MA193 B7M
Material of parts19StopperA3.ZnA3.ZnA3.ZnA3.ZnA3.Zn
Material of parts20Retaining ringer65Mn65Mn65Mn65Mn65Mn
Material of parts21Hexagon nutA194 2HA194-8A194-8MA194-8A194-8M
Applicable service conditionsApplicable mediaWater, steam, oil, gas, liquefied gas,natural oilNitric AcidNitric AcidStrong OxidizerUrea
Applicable service conditionsApplicable temperature≤120℃ (PTFE)、≤80℃ (NYLON)、≤250℃ (PEEK)、≤250℃ (PPL)
Design and manufacturingAPI 608
Face-to-face dimensionsASME B16.10
Type of connectionFlangeASME B16.5Butt weldingASME B16.25
Pressure testAPI 598
Transmission modeManual, worn and worn gear transmission, pneumatic, electric

Your questions answered

Common questions

How can you trust SFANVALVE ?

For Sfanvalve’s standard products, we are willing to start production without any  payment in advance. We accept product inspection upon completion, and payment is only due once the inspection is passed. SFAN will then arrange shipment to your designated warehouse as per your requirements.

Yes. After receiving the contract, we will provide technical drawings. Production will commence based on these drawings once they are confirmed by both parties.

After receiving the contract and confirming the drawings, we will provide a production schedule and manufacture strictly according to it. We will provide photos or videos to share and make a record for every stage of the production process. If a serious delay occurs due to management error, we will arrange air shipment and bear all costs by air.”

The warranty period is 18 months from the date of shipment or 12 months from the date of installation, whichever occurs first.