SS Wafer Check Valve

0bar-18bar (0mpa-1.8mpa)

Product Advantages

icon Material Certification: Full MTC provided with PMI verification to ensure material authenticity

icon Heavy-duty Construction:Valve walls meet or exceed international standards (e.g., ASME B31.3), ensuring strength and safety in high-pressure and corrosive conditions.

icon Low-turbulence Flow Path: Minimizes erosion points, extending valve life and reducing maintenance needs

icon Leak-proof Sealing: Special seals (FKM, EPDM, PTFE, or metal) ensure no leaks even under high pressure

Standards and Certifications

Design and Manufacture: ASME B16.34; ASME VIII; API 609:AS2129: JISB2220

Side Flange Standards: ANSI 125LB/ 150LB; ASME; AS-D/E; BS; DIN; EN PN6/ PN10/ PN16/ PN25; GB; GOST; HG/T; JIS 5K/ 10K

Face-to-Face Dimension: ISO 5752; MSS SP-68; ASME B16.10; EN 558-1; API 609

Testing Standards: API 598; EN 12266-1; ISO 5208; BS 6755-1

Certifications: ISO 9001; CE; BV; API 609; API 598; EAC; SIL3；

Technical description

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Q&A

Specification of the Valve

Type of Connection	Wafer
Size	DN32~DN1200 (1 1/4~48in)
Pressure	0bar~18bar (0mpa~1.8mpa)
Testing Pressure	256psi
Medium	Water/Oil/Air
Medium Temperature	-25~180℃

Material of the Valve

Body	CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/1.4406
Disc	DI/ CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/ HC276/ C95400/ C95800
Stem	45#/ SS410/ SS416/ SS420/ SS304/ SS316/ SS316L/ 17-4/ 2205/ 2507/ 1.4529/ K500/ CF8/ CF8M/ HC276
Soft Seat	EPDM/ NBR/ SI/ FKM/ FPM/ VITON

Industries Served

The following are the representative application industries of this valve. Since butterfly valves can be applied to almost all industries (as long as the temperature and pressure are in line), many industries have not been listed.

Petrochemical Industry

JRVAL high quality wafer check valves strictly adhere to API and NACE MR0175 standards, ensuring superior resistance to sour gas corrosion.

Water Treatment & Wastewater Systems

Our butterfly check valves cover a full range from DN32-DN1200. Featuring standard EPDM seats, they ensure over 50,000 reliable open/close cycles in clean water and light wastewater applications, with an ultra-low minimum opening pressure of just 0.02 bar.

Food & Beverage and Pharmaceutical

Sanitary check valves comply with 3A and (partially) EHEDG standards. They guarantee minimal contamination with metal ion release <5ppb and TOC <10ppb. Each valve undergoes 100% air-tightness testing for zero leakage and comes with complete material certificates and surface roughness reports.

Mining & Metallurgy

JRVAL quality wafer check valves offer specialized materials or liner designs. Our specific wear-resistant models boast over 50% longer service life than standard stainless steel check valves in slurries with 30% solids, and can withstand various strong acids like sulfuric and hydrochloric acid.

HVAC & Building Systems

JRVAL economical wafer check valve dual plate are designed to integrate seamlessly with building automation systems. Their low flow resistance (high Cv value) ensures significant energy savings, making them ideal for HVAC and building applications.

Marine/Shipbuilding Industry

JRVAL provides marine-grade stainless steel wafer check valve that comply with relevant standards and can be supplied with ship inspection certificates. Our specific Super Duplex Stainless Steel models (PREN>40) demonstrate exceptional resistance to pitting and crevice corrosion, even in seawater with chloride concentrations as high as 50,000ppm.

Our Certifications

Our Machining Equipments

SS Wafer Check Valve

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JIS Dual Plate Wafer Check Valve Drawing

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ASME/API Standard Extended Body Double Door Wafer Check Valve Drawing

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GB Standard Butterfly Check Valve Drawing

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Wafer Check Valve Dimensions

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Wafer Check Valve Technical FAQ

A thick valve body seems beneficial, but will it significantly increase costs?

While a robust body is essential for safety and durability, we balance this with cost-effectiveness. By optimizing our design and using efficient production, we deliver competitive pricing without compromising quality. A high-quality valve prevents frequent replacements and costly failures, resulting in a lower total cost of ownership over the long term.

Can you accommodate multiple flange standards like GB, ANSI, DIN, and JIS?

Yes. JRVAL's wafer check valves are designed for universal compatibility. We can manufacture them to your exact flange specifications, including GB (China), ANSI/ASME (USA), BS (UK), DIN (Germany), and JIS (Japan) standards, ensuring precise and seamless integration into your pipeline.

What are the benefits of the refined appearance and clear casting markings?

In harsh environments like desalination plants, clear and durable markings (material grade, pressure rating, heat number) are critical. They ensure correct installation, simplify maintenance and traceability, and reduce safety risks. The refined finish is a reflection of our meticulous craftsmanship and commitment to quality.

What does the "10-year failure-free guarantee" cover?

Our guarantee covers the key pressure-bearing components, like valve bodies made from premium materials such as super duplex steel. We guarantee their corrosion resistance and structural integrity for over 10 years under design-compliant conditions. Wear parts like seals have lifespans dependent on operating conditions, and we provide tailored guidance for them.

What standard does "zero-leakage" meet, and will seals degrade in high-salinity?

Our check valves are rigorously tested to meet API 598 zero-leakage standards. For high-salinity media, we use specially formulated corrosion-resistant elastomers (FKM/EPDM), PTFE-coated seals, or metal-to-metal seals to ensure long-term, reliable sealing performance and prevent rapid degradation.

OUR SERVICE & GUARANTEE

Free Samples

Compare our quality against any brand. We're confident you'll choose JRVAL after an in-depth evaluation of our sample products.

2-30 Year Warranty

We stand by our craftsmanship. Enjoy a comprehensive warranty covering non-human damage, with spare parts readily available.

Verified Quality

Every shipment is backed by comprehensive documentation, including material test reports (MTR), heat treatment reports, and mechanical performance tests.

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