Stainless Steel Trunnion Ball Valve, DBB, 3PC, 4 IN, CL1500

Key Specifications / Features

Model No. : 181101016

Trunnion-mounted ball valve fitted with pneumatic spring return actuator and manual handwheel backup. This Class 1500 full-bore DBB valve in NPS4 DN100 is constructed from ASTM A182 F316 forged stainless steel, featuring a three-piece bolted forged body. The spring-return pneumatic actuator enables fail-safe shutoff upon air loss, with manual override for emergency operation. It is equipped with body cavity relief and a seat sealant injection port for inline maintenance. Suited for oil, gas, and chemical pipelines, it provides reliable tight sealing and automatic safety isolation under high-pressure, corrosive service.

Detail Information

Valve name: Trunnion-mounted ball valve
Body structure: 3-piece forged bolted body
Flow path: Full bore
Seat design: Double block and bleed (DBB)
Design standard: API 6D, ASME B16.34
Operation: Pneumatic spring-return actuator with manual handwheel
Pressure class: Class 1500 LB
Nominal size: NPS 4 (DN100)
Body material: ASTM A182 F316 stainless steel
End connection: Flanged end
Feature: Body cavity relief, seat sealant injection port
Flange dimension: ASME B16.5
Face-to-face length: Compliant with API 6D
Available body materials: ASTM A105, ASTM A105N, ASTM A182 F304, ASTM A182 F316
Ball material choices: ASTM A182 F304, ASTM A182 F316, hardfacing overlay optional
Seat material choices: PTFE, RPTFE, PEEK, Devlon, metal-to-metal
Stem material: ASTM A182 F316
Bolting hardware: ASTM A193 B7 studs and ASTM A194 2H nuts
Operating temperature: -29°C to +180°C, cryogenic version available
Applicable media: Natural gas, crude oil, refined fuels, corrosive petrochemical fluids
Inspection and test: API 6D hydrostatic and functional test
Surface treatment: Epoxy coating for carbon steel; machined bare surface for stainless steel

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Founded in 2013, Bosseal is a professional industrial valve manufacturer based in Suzhou, China. We specialize in the design and production of Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug Valves, and Piping Strainers. All our products are manufactured in strict compliance with international standards, including API, ASME, ISO, DIN, BS, and EN. With a strong focus on quality control and engineering capability, we are committed to providing reliable and high-performance valve solutions for global industrial applications.

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