Pneumatic high pressure welded ball valve stainless steel

Detailed Product Introduction

The series welded high-pressure pneumatic ball valve stands as an advanced automated flow control component engineered for critical industrial applications. CNC-machined from top-grade forged stainless steel (SS304/SS316), the block body is characterized by exceptional structural density capable of handling extreme pressure ratings. The valve features extended pipe ends customized for seamless butt-weld or socket-weld processes, effectively eliminating potential threaded leak paths under high thermal or vibrational stress. Driven by a high-efficiency rack-and-pinion pneumatic actuator and pre-configured with a direct-mounted directional solenoid valve, this system ensures high-cycle reliability, rapid quarter-turn emergency isolation, and bubble-tight shut-off in high-pressure hydrogen, pneumatic instrumentation, and automated hydraulic networks.

Technical Specifications

• Valve Operation: Pneumatic Actuated Quarter-Turn Ball Valve

• Body Structure: Heavy-Duty Forged Square Block Design

• Primary Body Material: Premium Forged Stainless Steel 304 (SS304) / SS316 / SS316L

• Ball & Stem Metallurgy: Precision Ground Stainless Steel 316 / Duplex Stainless Steel

• Valve Seat Material: High-Density PEEK / Delrin / POM (Sustains severe high-pressure structural loads)

• Connection Interface: Butt-Weld (BW) / Socket-Weld (SW) Extended Pipe Ends

• Nominal Size Spectrum: DN15 (1/2 Inch), DN20 (3/4 Inch), DN25 (1 Inch) up to DN50 (2 Inch)

• Pressure Capacity Tiers: PN250 (25 MPa), PN320 (32 MPa / 4640 PSI) up to PN500 (50 MPa / 7250 PSI)

• Actuator Configuration: Aluminum Rack and Pinion Style (Double Acting or Spring Return)

• Pilot Solenoid Valve: Pre-assembled 5/2-Way or 3/2-Way Solenoid Valve (Available in 24VDC / 220VAC)

• Pneumatic Driving Pressure: 3.0 Bar to 8.0 Bar air supply input

• Pneumatic Inlet Port Thread: Standard G 1/4" or 1/4" NPT air connection interface

• Leakage Sealing Standard: Rate A according to EN 12266-1 / ANSI Class VI Bubble-Tight Shut-off

• Operational Temperature Range: -29°C to +150°C with standard PEEK seats / Custom tiers up to +230°C

• Stem Engineering Protections: Anti-blowout internal stem configuration ensuring ultimate operator safety

• Actuator Surface Treatment: Hard anodized aluminum extrusion with corrosion-resistant polyester coated end caps

• Position Monitoring: Built-in high-visibility pointer top-cap visual open/close position indicator

• Applicable Media Profile: High-pressure gases (N2, Ar, H2), hydraulic oils, high-purity water, and mild corrosive chemicals

• Shell Hydrostatic Validation: Verified via high-pressure factory testing at 1.5 times the nominal rating

• Accessories Adaptability: Supports integration of electronic limit switch boxes, positioners, and air filters

• Design Specifications: Fabricated and qualified in accordance with ASME B16.34, API 598, and ISO 5211