Your browser is out of date.

You are currently using Internet Explorer 7/8/9, which is not supported by our site. For the best experience, please use one of the latest browsers.

Trunnion Mounted Ball Valves

Trunnion Mounted Ball Valve

Warren Valve offers a 2”–48” forged steel trunnion mounted ball valves to meet the industry’s strictest specifications. Our products include ANSI Classes 150 – 2500 in carbon steel bodies with electroless nickel plating or stainless steel trim, as well as full stainless steel body and trim. Double block and bleed and emergency sealant injection fittings are standard, along with NACE and fire-safe.

Our commitment to quality is second-to-none and exceeds industry standards so that our customers receive only the best products like trunnion mounted ball valves available. Mill test reports are always available. Contact us for more information. 

Product Overview

Size Range From 2” – 48”
Pressure Range ANSI 150# through ANSI 2500# pressure class
Material Grades A105N, A182-F316 SS, A350-LF2, A350-LF6, and F51 Duplex
Port Sizes Full Bore, and Reduced Bore
Trim Materials 3MIL ENP, 316SS, and F51 Duplex
Seat Insert Material Devlon (PEEK and others available upon request)
Seal Materials HNBR 90 DURO, James Walker 101/985, FKM GLT, and AFLAS
End Configurations Raised Face (RF), Ring Type Joint (RTJ), Butt Weld (BW), and Flanged X Butt Weld
Standard Features Anti Static device, Anti Blowout Stem, Pressure relief valve to avoid cavity overpressure when applicable, Emergency built-in stem and seat sealant injection system, Fire Safe in accordance with API 607, MR-0175 NACE compliant, Fugitive Emissions compliant
Seat Design Features Double Piston Effect, Self Relieving, Combination of options available
Valve Functionality Double Block and Bleed (DB&B), Double Isolation and Bleed (DIB-1 or DIB-2)
Design Standards B16.34, B16.10, B16.5, B16.25, B16.47, Firesafe, Low Emmisions Compliant, CSA Z245.15.2017

Why Trunnion Ball Valve?

A ball valve uses a rotating ball and a stem to provide on/off flow control. When the valve is positioned where the bore is aligned in the same direction as the pipeline, it is in the open position, and fluid can pass downstream.  When the ball is rotated 90-degree, the bore becomes perpendicular to the flow path, meaning the valve is closed, and fluid cannot pass.

Advantages of a ball valve include Fast shut off, only a 90-degree turn required to close the valve. The opened or closed state of the valve can be easily detected by position of the handle. The Ball Valve provides tight seal, even after long periods, utilizing soft sealing components.

Trunnion-mounted ball design feature a "trunnion" anchoring at the top and bottom of the ball. This design provides a positive seal on both downstream and upstream seats, regardless of pressure, allowing for Double Block and Bleed, or Double Isolation and Bleed function. This makes trunnion design ball valves suitable for larger-bore and higher-pressure operations. Additionally, this design reduces torque required to stroke the valve, making a trunnion design ideal for automated ball valve applications.

See something you like?

Call us at 281.835.2138 or click
We Are Committed to Quality.