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Check valves · Swing Check Valve

Swing Check Valve

Reverse-flow prevention using a hinged disc.

← Back to product center Submit technical RFQ

Referenced standards and project specificationsAPI 594 · BS 1868Medium and service conditionsProcess medium, phase, composition and corrosivityDesign pressure and temperatureDesign pressure, design temperature and applicable pressure-temperature basis

Information required for selection

Engineering selection criteria

Options are not freely interchangeable and require technical confirmation.

Product type: Swing Check Valve
Referenced standards and project specifications: API 594BS 1868API 6D
Medium and service conditions: Process medium, phase, composition and corrosivity
Design pressure and temperature: Design pressure, design temperature and applicable pressure-temperature basis
Size and piping interface: Nominal size, end connection, flange or welding standard and face-to-face requirement
Materials and sealing system: Body, bonnet, trim, seat, packing and gasket materials
Operation, delivery and special requirements: Operation method, quantity, delivery destination and project-specific requirements

API · ISO · IEC · ASTM · MSS

Verified industry sources

References use official standards and industry-organization sources only. They do not imply certification.

Verified industry sources

API 594 covers flanged, lug, wafer and butt-welding-end check valves.
A swing check valve uses a hinged disc that opens with forward flow and closes when flow reverses.
Size, pressure class, minimum opening flow and transient closing performance must be verified for the specific model.

Information required for selection

Medium and service conditions: Process medium, phase, composition and corrosivity
Design pressure and temperature: Design pressure, design temperature and applicable pressure-temperature basis
Size and piping interface: Nominal size, end connection, flange or welding standard and face-to-face requirement
Materials and sealing system: Body, bonnet, trim, seat, packing and gasket materials
Operation, delivery and special requirements: Operation method, quantity, delivery destination and project-specific requirements

APIAPI 594 product scope APIAPI standards plan

Inspection, documents and operating limits

Include these requirements in the RFQ and purchase order so suppliers quote and deliver on the same basis.

Inspection and testing

Verify visual condition, markings and critical dimensions
Complete shell and seat pressure tests to the agreed standard, pressure and hold time
Verify material traceability; require PMI, NDE or fugitive-emission testing only when specified

Delivery documents

Approved datasheet and general arrangement drawing
Material certificates, pressure-test reports and inspection records
Packing list, conformity documents, operating instructions and agreed third-party witness records

Selection limits

The page supports RFQ preparation and does not make every size, class and material combination available
Corrosive, cryogenic, high-temperature, solids-bearing or hazardous service requires separate material and sealing review
Fire-safe, fugitive-emission, SIL, NACE or regulatory claims require explicit order requirements and valid evidence

PRICING & RFQ

Price on request

Prices shown are reference prices for selected specifications only and do not constitute a final quotation. Actual pricing varies with technical requirements, inspection and documentation, packaging, order quantity, Incoterms and destination logistics. For other sizes or parameters, submit an RFQ and we will provide formal selection and quotation support for your service conditions and purchasing requirements.

Price on requestGet formal quote →

Submit technical RFQ

Provide the medium, phase, design temperature and pressure, size, materials, end connections, actuation, quantity, destination, delivery schedule and required inspection documents.Catalog entries describe configurable sourcing scopes and technical confirmation requirements. They do not represent stock, certification, verified manufacturing capacity or unrestricted combinations of parameters. Final specifications remain subject to approved datasheets, drawings, supplier documents and quotation.

VALVE.MEVALVE.ME

Check valves · Swing Check Valve

Swing Check Valve

Reverse-flow prevention using a hinged disc.

← Back to product center Submit technical RFQ

Information required for selection

Engineering selection criteria

Options are not freely interchangeable and require technical confirmation.

Product type: Swing Check Valve
Referenced standards and project specifications: API 594BS 1868API 6D
Medium and service conditions: Process medium, phase, composition and corrosivity
Design pressure and temperature: Design pressure, design temperature and applicable pressure-temperature basis
Size and piping interface: Nominal size, end connection, flange or welding standard and face-to-face requirement
Materials and sealing system: Body, bonnet, trim, seat, packing and gasket materials
Operation, delivery and special requirements: Operation method, quantity, delivery destination and project-specific requirements

API · ISO · IEC · ASTM · MSS

Verified industry sources

References use official standards and industry-organization sources only. They do not imply certification.

Verified industry sources

API 594 covers flanged, lug, wafer and butt-welding-end check valves.
A swing check valve uses a hinged disc that opens with forward flow and closes when flow reverses.
Size, pressure class, minimum opening flow and transient closing performance must be verified for the specific model.

Information required for selection

Medium and service conditions: Process medium, phase, composition and corrosivity
Design pressure and temperature: Design pressure, design temperature and applicable pressure-temperature basis
Size and piping interface: Nominal size, end connection, flange or welding standard and face-to-face requirement
Materials and sealing system: Body, bonnet, trim, seat, packing and gasket materials
Operation, delivery and special requirements: Operation method, quantity, delivery destination and project-specific requirements

APIAPI 594 product scope APIAPI standards plan

Inspection, documents and operating limits

Include these requirements in the RFQ and purchase order so suppliers quote and deliver on the same basis.

Inspection and testing

Verify visual condition, markings and critical dimensions
Complete shell and seat pressure tests to the agreed standard, pressure and hold time
Verify material traceability; require PMI, NDE or fugitive-emission testing only when specified

Delivery documents

Approved datasheet and general arrangement drawing
Material certificates, pressure-test reports and inspection records
Packing list, conformity documents, operating instructions and agreed third-party witness records

Selection limits

The page supports RFQ preparation and does not make every size, class and material combination available
Corrosive, cryogenic, high-temperature, solids-bearing or hazardous service requires separate material and sealing review
Fire-safe, fugitive-emission, SIL, NACE or regulatory claims require explicit order requirements and valid evidence

PRICING & RFQ

Price on request

Price on requestGet formal quote →

Submit technical RFQ