Check Valve

API Swing Check Valve

Datasheet

Download datasheet (PDF)

Specifications are indicative. Final specification is confirmed at quotation.

Specifications

Confirmed at quote
Size Range
NPS 2 to NPS 36
Pressure Class
Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500
End connection
Flanged · Butt weld

Standards

Design & manufacture
BS 1868-1873, ASME B16.34, API 6D
Inspection & test
API 598, API 6D
Face to face
ASME B16.10
Flange & end dimension
ASME B16.5, ASME B16.47A MSS SP-44, ASME B16.47B API 605
Butt weld end
ASME B16.25
Pressure-temperature rating
ASME B16.34
Wall thickness
API 600 and BS 1868
Materials
ASTM
Other standards
ASME B16.47A, ASME B16.47B

Configure your variant(manually adjust box on the right if you require a different spec)

Size
Pressure
End connection

Materials

Material grade

Offered in complete material setups. Pick one to set every part to the matched set, or choose parts individually below.

Trim

Offered in complete material setups. Pick one to set every part to the matched set, or choose parts individually below.

All available material options per part. Click a pill to set it in the configurator.

Material grade
Body
Disc
Bolt
Cover
Disc Nut
Hinge
Nut
Yoke
Trim
Disc Surface
Hinge Pin
Seat Ring Surface
Other parts
Gasket
Eye Bolt
Technical drawings(1 page)

Features

  • Swing check mechanism with hinged disc preventing reverse flow
  • Eye bolt fitted to cover for maintenance access
  • Trim code system for seating surface material selection
  • Available in multiple body material grades: carbon steel, alloy steel, stainless steel
  • Multiple end connection options: flanged (ASME B16.5, B16.47A, B16.47B) and butt-weld (ASME B16.25)

Description

Swing check valve designed and manufactured to API 600 and BS 1868-1873, with a hinged disc that prevents reverse flow. Available in carbon steel, alloy steel, and stainless steel to ASTM standards. Suitable for flanged and butt-weld end connections per ASME B16.5, B16.47A, B16.47B, and B16.25. Trim code system provides selection of seat ring, disc, and hinge pin surface materials.

Selection notes

This check valve is a swing check and api swing check pattern, supplied for flanged and butt weld installation.

Sizes run NPS 2 to NPS 36, in Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500.

The body is offered in A216 WCB, A352 LCB, A217 WC1 and A217 WC6, so the grade can be matched to the service rather than the other way round.

It is catalogued for Oil & Gas and Industrial Process.

Built to BS 1868-1873, ASME B16.34, API 6D, ASME B16.10 and API 598.

Available pressure classes

Pressure classes this product is rated to.

Used in

Related guides

Smart find

Searches our product catalogue using your spec. Drop a spec sheet or parts list (PDF, Excel, CSV, Word or text, several at once), paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.

API Valve configurations

View full API Valve system →
This product is part of the API Valve modular system. All configurations share the same hydraulically operated body: the control function is set by the pilot valve(s) attached. An existing API Valve body in the field can be reconfigured for a different duty simply by swapping the pilot, without replacing the body.

Related Check Valves