Specification

NEWWAY High Halliburton Manual Resun Inverted Pressure Balance Plug Valve

I. Product Overview

NEWWAY manual back pressure balanced lubricated plug valves are designed to API 6D and ANSI B16.34 standards, integrating an inverted pressure balancing structure with a forced lubrication system for low-torque operation and bi-directional sealing under high-pressure conditions. Available in WCB cast steel, stainless steel, and other materials, these valves suit media environments from -20℃ to 425℃, widely applied in shut-off and regulation of industrial fluids like water, oil, and gas.

II. Key Attribute Parameters

Technical Specifications

Bore Range: DN50~DN600 (2″~24″)

Pressure Classes: Class 150~Class 2500 (PN16~PN420)

Design Standards: API 6D, ANSI B16.34

Flange Standards: ANSI B16.5 (RF face), ANSI B16.25 (butt-weld ends)

Testing Standard: API 598 (shell strength and seal testing)

Material Configuration

Body/Bonnet: WCB (cast steel), LCB/LCC (low-temperature steel), CF8/CF8M (stainless steel)

Plug: Forged alloy steel (surface hardened, HV≥280)

Sealing System: Metal hard seal + PTFE auxiliary seal, brass lubrication passage

Actuators: Manual handwheel, gear drive, electric actuator (optional)

Performance Parameters

Shell Test Pressure: 1.5×rated pressure (3.0MPa for Class 150)

Seal Test Pressure: 1.1×rated pressure (bi-directional zero leakage, API 598 Class VI)

Operating Torque: ≤180N·m for DN100 valve (manual handwheel)