As the name suggest, Check valve or Non Return Valve (NRV) allows liquid to flow in one direction only. It prevents Back flow of media in the reverse direction.
IVE” Offers “STARTEK” make Check valves, manufactured by M/S. Star Engineers, India, and an API 6D registered industrial valves manufacturer.
Along with Gate and Globe valve, Check vales are also preferred choice with Petroleum, Fertilizer and large Chemical plants.
An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.
Key Features and Benefits of Check Valve Or Non Retrun Valve
- “STARTEK” CHECK VALVES are available in size in the range from ½” (15mm) to 24” (600 mm)
- Check valves are manufactured with Bolted Bonnet, Screwed Bonnet Design.
- Non Return Valve can be mounted in Horizontal as well as Vertical direction by selecting Lift or Swing Type Design respectively.
- Seat Rings can be Integral as well as renewable design.
- Wafer Type check Valve & Disc Check valve are also available, which can be sandwich between two flanges.
Technical Data
Screwed Ends (BSP, NPT) | : ANSI B 1.20.1 { ½” (15 mm) to 2” (50 mm)} |
Flanged Ends | : ANSI B 16.5 ASA 150#/ 300# |
Socket Weld Ends | : ANSI B 16.11 |
Butt Weld Ends | : ANSI B 16.25 |
Valve Design | : BS 1868 / BS 5352 / API 6D |
Valve testing | : BS 6755 / API 598 |
“STARTEK” CHECK VALVES are metal seated Check valves manufactured with variety of Trim Options, variying from Trim 1 to Trim 20 as per user requirement to achieve specific Pressure Temperature requirements.
Material of Construction
“STARTEK” Offers valves in the following metallurgy
CAST IRON | : IS 210 FG 200 WITH SS 410/ SS 202 TRIMS |
CAST CARBON STEEL | : ASTM A 216 WCB / WCC WITH SS 410 / SS 202 / SS 304 TRIMS |
FORGED CARBON STEEL | : ASTM A 105 Gr. B WITH SS 13% Cr STEEL Trims |
CAST STAINLESS STEEL | : ASTM A 351 Gr CF-8 / CF-8M/ CF-3 / CF-3M / CN-7M/ |
HAST ALLOY & OTHER AVAILABLE METALS |