BS1868 Pressure Seal Cast Steel Check Valve – High-Pressure & Silent Backflow Protection

Key Structural Features
✅ Pressure Seal Bonnet Design:
BS1868/ASME B16.34: Cast steel body (ASTM A217 WC6 / A216 WCB) in high-pressure systems (Class 150~2500 LB/PN16~PN420).
Swing Type Disc: Hinged disc design for low cracking pressure and smooth closure, minimizing water hammer.

✅ Dual Configuration Options:
Type 1 (Standard): Compact design for general oil, gas, and steam applications.
Type 2 (Optional): Extended body with bypass port for pressure balancing or system flushing.

✅ Field-Serviceable & Customizable:
Lift Eye Bolt: Facilitates safe handling and installation in confined spaces.
Lever & Weight Kit: Adjustable counterweight for vertical pipeline installations.
By-Pass Valve (On Request): Reduces system downtime during maintenance.

✅ Robust Construction:
Cast Steel Body: Corrosion-resistant for water, steam, and hydrocarbon service.
Anti-Wear Hinge Pin: Hardened stainless steel pin extends service life in abrasive media.