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.

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 浮动球阀材质 副本.webp

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.