API 6D
Swing check valve
Request a KEHUA cast steel swing check valve quotation. Review flow range, pump duty, orientation, disc clearance, connections and model-specific test documents.
Check Valves
Swing check valve
KEHUA lists a cast steel swing check valve series with a hinged disc for backflow prevention. Forward flow opens the disc; the closure arrangement and installation must be checked against the actual piping and pump duty.
About the swing check valve manufacturerThese are family-level options. Confirm the offered series rating and materials against its approved datasheet.
CAST STEEL SWING CHECK VALVE PROCUREMENT
What must a swing check valve quotation confirm?
A swing check valve is also called a non-return valve. Its disc position and closing response depend on the offered construction and operating flow conditions. Provide minimum and normal flow, expected flow reversal and pump start-stop conditions for review. Confirm the permitted installation orientation on the model drawing rather than assuming that every swing check valve can be installed in any direction.
- Identify the quoted model and body, disc, hinge/pin, seat and gasket materials, including the pressure–temperature limits for the actual configuration.
- Confirm flange or butt-weld end details, mating piping dimensions, face-to-face length and any space needed to inspect or remove the cover and internal parts.
- Agree shell and seat test standards and editions, test conditions, sealing direction and leakage acceptance; request the specified material and inspection records.
Sample catalogue reference
The figures describe the named catalogue construction. Size, pressure, temperature, material and end options are not interchangeable combinations; the maximum values do not apply simultaneously. Confirm the offered configuration, seat/seal compatibility, pressure–temperature limits and dimensions on its approved datasheet and drawing. The listed ranges summarize catalogue sizes, not every intermediate DN.
Cast steel swing check valve
| Pressure class | Nominal sizes shown | End styles shown | Printed pages |
|---|---|---|---|
| ASME Class 150 | NPS 2–36 / DN 50–900 | RF / RTJ flange · BW | 40 |
| ASME Class 300 | NPS 2–36 / DN 50–900 | RF / RTJ flange · BW | 41 |
| ASME Class 600 | NPS 2–30 / DN 50–750 | RF / RTJ flange · BW | 42 |
RF = raised-face flange · RTJ = ring-joint flange · BW = butt-weld end
Source: supplied valve sample booklet; page numbers refer to its printed pages. Confirm the current model datasheet before ordering.
These are model- and class-specific examples. Not every size or end style is available in every configuration; final dimensions and ratings require an approved drawing and datasheet.
SERIES SELECTION
Which operating cases belong in a swing check valve RFQ?
Provide flow range, fluid properties, installation orientation and pump start-stop or reversal cases for a swing check valve quotation. Confirm the hinge and disc arrangement, opening space, inspection access and seat-leakage acceptance on the offered drawing. A hinged-disc description or nominal size alone does not establish non-slam performance for the pipeline.
Related procurement checks: lift check valve series; swing, lift and dual plate selection guide; Agree the required shell and seat tests.
Compare construction choices in this valve family- Provide minimum/normal flow, flow reversal and pump start-stop information.
- Confirm permitted horizontal/vertical orientation and the flow arrow.
- Request the hinge/disc drawing, inspection access and seat leakage acceptance.
- Provide minimum/normal/maximum flow, fluid phase and solids, pressure, temperature, pipe orientation and available pump-trip or reversal data. Specify line size and mating ends, then quantity, destination, requested date and drawing/test records. Require the exact size-class-end combination and any response limitations to be identified in the offer.
Product-family buyer guides
Use these guides to compare valve families, review materials and prepare an RFQ. Confirm the offered model's ratings and service suitability against its approved datasheet.
- Swing vs Lift vs Dual Plate Check Valves: Selection Guide
Compare swing, lift and dual plate check valves by disc movement, installation, pressure drop and pump duty. Use the RFQ checklist to review the offered model.
- Valve End Connections: Flanged vs Butt Weld, Socket Weld & Threaded
Compare flanged, butt-weld, socket-weld and threaded valve connections. Check pipe interfaces, maintenance access and project standards with a practical RFQ checklist.
- Industrial valve materials: WCB, LCB, CF8M and duplex steel
Compare WCB, LCB, CF8M and duplex valve bodies with a material selection table and RFQ checklist covering fluid, temperature, corrosion and material records.
- Valve Pressure Testing: Shell vs Seat Tests & Buyer Checklist
Understand shell and seat leakage tests, review API 598 or ISO 5208 requirements, and specify an auditable valve pressure-test report before ordering.
- How to prepare an industrial valve RFQ that can be reviewed quickly
Prepare an industrial valve RFQ with a copyable fill-in checklist, quotation deviation table and checks for service data, materials, connections, actuation and documents.
- What to check in a valve qualification package
A document-review checklist for procurement teams comparing certificates, product evidence and project records.
Request a Quote
Request a swing check valve quotation
Pipeline protection, pumps and process systems
Check Valves
