Axisymmetric check valves
(Equipment / Material)
Condition: New
Location or Storage Country: Russia
Service Engineering Support: Yes
Warranty: Yes
Price: Call for price
Description:
Check valves with axial displacement of the shut-off device are designed to automatically prevent the backflow of the working medium. They are used in the pipeline piping of compressor stations to protect equipment from the effects of backflow of gas during emergency shutdowns of gas pumping units, as well as to prevent gas leakage during pipeline depressurization.
Overview:
TECHNICAL SPECIFICATIONS:
— diameter from 150 to 1400 mm;
— pressure from 8.0 to 16.0 MPa;
— ambient temperature from -60 to +180 °C;
— climatic version U1, UHL1 according to GOST 15150-69:
U1 – regions with a moderate climate (ambient temperature from -40ºС to +50ºС);
ХЛ1 – regions with a cold climate (ambient temperature from -60ºС to +45ºС);
— above-ground/underground installation;
— time of complete closure when the flow rate decreases to zero - 5 s.
CONNECTION TO THE PIPELINE:
— for welding;
— for welding with transition rings;
- flanged.
Tightness class according to STO Gazprom 2-4.1-212-2008, API 598.
TU - 3742-031-00217610-2008.
RELIABILITY INDICATORS:
— designated service life – 30 years;
— service life before decommissioning – 40 years;
— warranty period of operation – 24 months from the date of commissioning, but not more than 36 months from the date of shipment.
MATERIAL EXECUTION:
— body - steel 09G2S, 20GML;
— spool - 09Г2С+07Х25Н12Г2Т;
— seal type - metal-to-metal.
WORKING FLUID FLOW TEMPERATURE:
— above-ground valves – from -10ºС to +180ºС;
— underground installation valves – from -10ºС to +180ºС.
Working environment – non-aggressive natural gas. It is possible to manufacture check valves for working environments with high methanol content, increased content of mechanical impurities and other deviations from the specified composition upon agreement.
Manufacture and delivery according to TU 3742-031-00217610-2008.
OJSC "Volgogradneftemash"
Locations: Volgograd region, Volgograd city, Elektrolesovskaya st., 45
Main Products/Services: Pumping equipment