Overview
The Parker LV40A Schrader Bellows pneumatic lockout valve delivers dependable pressure control for general industrial and transportation pneumatic applications. Rated for 250 PSI (1724 kPa) maximum, this 1/2″ NPT valve is built with proven bellows-seal technology to prevent leakage and extend service life. Schrader Bellows, part of the Parker family, manufactures this valve to meet demanding industrial standards for air control and safety isolation.
Key Features
- 250 PSI maximum pressure rating (1724 kPa)
- 1/2″ NPT port connection for standard industrial fittings
- Bellows seal design eliminates stem leakage
- Compact, lightweight design at 5.0 lbs
- Manual operator for easy field service and emergency isolation
- Suitable for pneumatic cylinders, air motors, and control circuits
Technical Specifications
- Part Number: LV40A
- Manufacturer: Parker Schrader Bellows
- Maximum Pressure: 250 PSI (1724 kPa)
- Port Size: 1/2″ NPT
- Weight: 5.0 lbs
- Valve Type: Pneumatic Lockout (Isolation) Valve
- Material: Ductile iron body with stainless steel components
- Flow Configuration: 2-way poppet design
Typical Applications
The Parker LV40A pneumatic lockout valve is ideal for:
- Pneumatic cylinder circuit isolation during maintenance
- Air motor safety shutoff and lockout/tagout (LOTO) procedures
- Pressure relief and pilot-operated control in manifold systems
- Equipment protection during service and troubleshooting
- General industrial machine tool pneumatic circuits
- Aerospace and transportation equipment pneumatic systems
Compatibility & Replacements
Compatible With
- Standard 1/2″ NPT pneumatic line connections
- Parker/Schrader Bellows valve manifolds and porting systems
- Industrial pneumatic circuits operating at 0-250 PSI
- Compressed air systems in manufacturing and processing facilities
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The LV40A is a direct replacement for equivalent Parker Schrader Bellows 250 PSI 1/2″ NPT pneumatic isolation valves in the same series.
Works With
- Parker pneumatic hose and fittings (NPT adapters available)
- Pneumatic directional control valves and solenoid manifolds
- Industrial automation circuits and PLC-controlled air systems
- Portable air compressors and stationary pneumatic systems
