ASTM A105N Ball Valve, 3-piece, Trunnion, DBB, 8 IN, 900 LB

Key Specifications / Features

Model No. : 181101014

Worm gear trunnion-mounted ball valve forged from ASTM A105N carbon steel with a machined bare metal finish. This Class 900 full-bore DBB ball valve in NPS8 DN200 features a heavy-duty three-piece bolted forged body for high-pressure pipeline isolation. The worm gear operator greatly reduces operating torque for convenient manual operation. It is equipped with body cavity relief and a seat sealant injection port for on-line seal maintenance. Suited for oil and gas transmission pipelines, this valve maintains tight shut-off and delivers stable performance under rigorous high-pressure operating conditions.

Detail Information

Valve category: Trunnion-mounted ball valve
Body layout: 3-piece forged bolted construction
Bore style: Full bore
Seat type: Double block and bleed (DBB)
Design standard: API 6D, ASME B16.34
Operation: Worm gear operated
Pressure class: Class 900 LB
Nominal size: NPS 8 (DN200)
Body material: ASTM A105N forged carbon steel
End connection: Flanged end
Flange specification: ASME B16.5
End-to-end dimension: Compliant with API 6D
Available body materials: ASTM A105, ASTM A105N, ASTM A182 F304, ASTM A182 F316L
Ball material options: ASTM A182 F304, ASTM A182 F316, hardfacing overlay optional
Seat material options: PTFE, RPTFE, PEEK, Devlon, metal-to-metal
Stem material: ASTM A182 F316
Bolting: ASTM A193 B7 studs with ASTM A194 2H nuts
Working temperature: -29°C to +180°C, cryogenic service available
Applicable media: Natural gas, crude oil, refined oil, and petrochemical process media
Inspection and test: Per API 6D
Surface finish: Bare machined surface for carbon steel; raw machined finish for stainless steel
Feature: Body cavity relief, seat sealant injection port

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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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