Valves Manufacturer, Reliable Valves
  API Valves Manufacturer
API-6D Valves, Swing Check Valves
Swing Check Valve
Swing Check Valves, API-6D Valves
Reliable Valves, Check Valves [NRV] are Swing Type with bolted cover construction. The one piece disc construction is securely fastened to the hinge by means of a lock nut & pin. The Disc is free to rotating type to avoid any other wear. The hinge pin offers excellent wear resistance properties.

Swing Check valves also can be supplied with Titling disc design, Dash pot arrangement and outside lever & weight design for use where control of the disc as desired.

Reliable Valves also offer P.T.F.E. (PFA / FEP) Lined Ball Type/Y Type & Rubber Lined Flap Type Check Valves for high corrosive application.

Specifications & Standards

Design & Manufacture
Body & Trim
Casting Inspection
Flange Dimensions
Face to Face
: BS 5351 / API 6D/ANSI B16:34
: Nace MR 01-75
: MSS SP-53, 55, 59, 94
: BS 6755 Part-I / API 598
: ANSI B16.5 / B16.47 / MSS SP-44
: ANSI B16.10 / API-6D

Valve Type & Configuration

Swing check valves shall have a disc which response automatically to block fluid in one direction. Swing check valve can be of Wafer, Axial Flow & Lift type.

Pressure & Temperature Rating

Valves manufactured by Reliable Valves shall be furnished in one of the following classes:

- PN 20 (class 150)
- PN 50 (class 300)
- PN 64 (class 400)
- PN 100 (class 600)
- PN 150 (class 900);
- PN 250 (class 1500)
- PN 420 (class 2500);

Pressure-temperature rate is for above class rated valves shall be in accordance to ASME-B 16.34/EN 1092-1, Other than shall be determine for a material properties in accordance with the applicable design standard.


Reliable Valves manufacture Swing check valves for 2" to 36" Size
Reliable Valve api-6d
- Ball Valve
- Conduit Gate Valve
- Swing Check Valve
- Taper Plug Valve
reliable valves
  • ISO 9001: 2008 by Det Norske Veritas A.S.
  • Fire Safe (API 607) by Det Norske Veritas A S
  • Fire Safe (API 6FA) by Det Norske Veritas A S
  • PED Certificate by DNV A.S.
  • ATEX Certificate by DNV A.S.
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