Description
The Dwyer A 310A is a versatile 3 way plastic vent valve engineered for use with pressure gauges, manometers, and Magnehelic instruments in HVAC, pneumatic, and low pressure measurement systems. It provides a convenient way to isolate, vent, and connect pressure sources during installation, maintenance, and calibration.
Key Features
- 3 way venting function: Enables three positions — gauge connected to the pressure source, both ports closed (off), and gauge vented to atmosphere for safe zeroing or removal.
- Standard pressure connections: 1/8″ NPT inlet to 1/4″ metal tubing connection for flexible integration with common HVAC and instrumentation lines.
- Durable molded plastic construction: Lightweight yet resilient for reliable field performance in maintenance and service environments.
- 80 psi rating: Suitable for low pressure applications typical in HVAC systems and pneumatic controls.
- Direct replacement for older brass model A 310: Offers improved corrosion resistance while maintaining core functionality.
