Dual Plate Check Valves: API 594, Wafer & lug type. Get quotes from verified suppliers on MetalMitra.
- Dual Plate Check Valves
- Check Valves
- API 594
- Wafer & lug type
Your details are never shown publicly. The MetalMitra team reviews every requirement.
Specifications
| Standard | API 594, API 6D |
|---|---|
| Body Material | WCB, CF8M, ductile iron, duplex |
| Size | 2" to 48" |
| Class | 150 to 2500 |
| Type | Wafer, lug, double flanged |
| Plates & Spring | SS 316, Inconel X-750 |
Grades & standards
- Stainless Steel 316
Chemical composition & mechanical properties
| C | Mn | P | S | Si | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | 0.10 |
| Tensile strength, min | 515 MPa |
|---|---|
| Yield strength (0.2%), min | 205 MPa |
| Elongation in 50 mm, min | 40% |
| Hardness, max | 217 HBW |
Single values are maximums unless marked min. Values per ASTM A240 (plate, sheet and strip); always confirm against the purchase specification and the mill test certificate.
Source Dual Plate Check Valves from verified manufacturers, mills and stockists on MetalMitra. Spring-loaded dual plate (wafer) check valves with short face-to-face and fast, non-slam closing.
Share your size, grade, quantity and delivery location once, and compare offers from suppliers who stock or manufacture Dual Plate Check Valves to API 594.
What you can source
- Swing Check Valves — BS 1868 / API 6D swing type valves.
- Lift Check Valves — API 602 forged piston and ball types.
- Dual Plate Check Valves — API 594 wafer valves with a short face-to-face.
- Non-Slam Check Valves — Spring-assisted designs to prevent water hammer.
Key properties
- Leak-Tight Sealing — Tested to API 598 for reliable shut-off.
- Wide Material Choice — WCB, A105, CF8M, LCC, duplex and alloy options.
- Backflow Prevention — Automatically closes on flow reversal to protect equipment.
- Multiple End Connections — Flanged, buttweld, socket weld and threaded ends.
Applications & industries
- Oil & Gas
- Refineries
- Petrochemical Plants
- Power Plants
- Water Treatment
- Chemical Plants
- Marine
- General Utilities
Testing & documentation
Inspection and documentation for Dual Plate Check Valves follow API 594, API 6D plus any extra requirements in your PO.
- Shell hydrostatic test
- Seat leak test to API 598
- Back-seat test as applicable
- Visual & dimensional inspection
- Material certificates for body and trim
- EN 10204 3.1 Test Certificate
Why source on MetalMitra
- Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
- One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
- Full traceability — Heat numbers, test certificates and third-party inspection on request.
- Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.
Request pricing
Post an RFQ for Dual Plate Check Valves with your drawing or specification and receive quotes from verified suppliers.
Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the test certificate.
Applications & industries
- Oil & Gas
- Refineries
- Petrochemical Plants
- Power Plants
- Water Treatment
- Chemical Plants
- Marine
- General Utilities
- Oil & Gas
- Petrochemical & Refining
- Power Generation
- Chemical Processing
- Water & Wastewater
- Marine & Shipbuilding
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
FAQs
Dual plate or non-slam check valves are preferred to minimise water hammer.
Lift and dual plate types can be installed in vertical upward flow; confirm orientation with the supplier.
BS 1868, API 6D, API 594 and API 602.
Need Dual Plate Check Valves?
Share grade, size, quantity and delivery location. We compare suitable suppliers and come back with a clear quotation.
