Overview
The Smith-Cooper Series 8155 brass ball valve delivers dependable on-off flow control for industrial and commercial fluid systems. Built with a forged brass body and rated at 600# WOG (water, oil, gas) and 150# WSP (working steam pressure), this 1-1/4″ IPS ball valve is engineered for durability in demanding environments. The full port design minimizes pressure drop, making it ideal for applications requiring maximum flow capacity.
Key Features
- 600# CWP / 150# WSP pressure ratings — suitable for high-pressure hydraulic and compressed air systems
- Forged brass construction — corrosion resistant and reliable in diverse fluid media
- Full port design — reduces flow restriction and pressure loss
- Chrome-plated ball — enhances durability and resists wear
- PTFE seats and seals — excellent chemical compatibility and leak-free performance
- Blow-out proof stem — safety feature prevents stem ejection under pressure
- Locking device included — enables position lock for safety applications
Technical Specifications
- Size: 1-1/4″ IPS (Iron Pipe Size) threaded
- Pressure Rating: 600 lb CWP, 150 lb WSP
- Body Material: Forged brass
- Ball: Chrome-plated brass
- Seats & Seals: PTFE
- End Connections: IPS threaded (both ends)
- Port Type: Full port
- Weight: 1.7 lb
- Features: Blow-out proof stem, locking device
- Certifications: CSA approved (1/2″ through 2″)
Typical Applications
- Hydraulic systems — precise flow control and lock-out capability for system maintenance
- Compressed air — reliable shut-off in pneumatic lines and tool circuits
- Pump discharge lines — full port design supports high flow rates with minimal restriction
- Water and plumbing — durable on-off control for cold water distribution
- Oil and gas systems — chemical-resistant PTFE seals handle diverse fluid media
- Industrial control — locking stem device enables safe isolation during maintenance
Compatibility & Replacements
Compatible With
- Standard 1-1/4″ IPS threaded pipe and fittings (ANSI B16.3)
- Hydraulic systems rated for 600 psi and below
- Pneumatic systems rated for 150 psi and below
- Water, air, oil, and gas distribution lines
- Plumbing and HVAC systems requiring manual shut-off
Replaces / Drop-In Replacement For
- Smith-Cooper 01728155L (same model — direct match)
- Series 8155 brass ball valves in 1-1/4″ size
Works With
- Standard NPT/IPS threaded fittings and adapters
- Brass and steel pipe schedules (Schedule 40 and Schedule 80)
- Hydraulic and pneumatic system manifolds
- Manual and mechanical actuators (ball valve lever or wrench operated)
- Isolation and lock-out/tag-out (LOTO) procedures in industrial applications
