Axial Check Valves Product Catalogue.pdf

MAIN CHARACTERISTICS 

Axial Check Valves are designed to prevent medium return (back) flow for pipelines transporting oil, natural gas, petrochemical products at the temperature up to +100⁰C. Upon Customer’s request valve can be manufactured up to 250⁰C.

RATINGS: #150-#300-#600-#800-#900

Installation type: aboveground or underground.

Connection to the pipeline: RF/RTJ  (ASME 16.47, ASME 16.5) or BW (ASME 16.25)

Design standard: API 6D

MATERIAL SPECIFICATION

DESIGN FEATURES

   Axial flow check valve body is made of forgings or castings undergoing
   100% ultrasonic testing.
  
   Valve design is maintenance-free but all internal parts can be easily
   disassembled in case of general repair.
  
   Damping system is used for non-slam operation. It consists of a camera filled
   with hydraulic liquid and a damping disk solidly connected with closure stem that
   moves inside the camera. Sealing system of the camera ensures its tightness and
   wouldn’t require hydraulic liquid changing during full service life.
   Valve can be manufactured without damping system upon Customer’s request.
  
   Tight shut-off is provided by highly erosive-resistant stainless steel sealing (metal-to metal).

PRINCIPLE OF OPERATION

The opening of the Axial Check Valve occurs under the influence of input medium flow pressure on the locking element.
In case of medium back-flow the locking element is returned in «closed» position by spring action.


Axial Check Valves Main Dimensios