Aqua Environment 907 907 Series Unloader Valve Air Operated 70 PSI Minimum Control

The model 907 unloading valve uses a low control pressure to shut off a high pressure line such as on the discharge of a compressor. When control pressure is released the valve opens. A minimum of 70 PSI control pressure is required to operate the valve at 6000 PSI . Control pressures up to 5000 PSI can be used without affecting operation or damaging the valve. One application for the valve is to unload a compressor upon shutdown. Interstage pressure could be used as the control pressure.

Features:

• Unloader Valve
• Air operated
• 70 psi Minimum Control Pressure

Typical Application:

• Unload his pressure interstage and discharge lines upon shut down
• Automatic condensate drains for compressor separators, like the Coltri MCH6
• Control of high pressure lines using low pressure air and inexpensive low pressure solenoids
• Numerous other control and logic functions
• Process industry control of liquids and gases
• Air tank fill stations

Installation

Connect the high pressure line to be unloaded to the valve end with the 1.37" hex . Connect the control pressure source to the opposite end. The outlet vents to atmosphere via the side holes in the body. Use a suitable pipe thread sealant such as teflon tape on inlet and outlet threads. Avoid over torquing pipe thread. Normal torque applied with a 6 or 8 inch long wrench is ample. Use ample teflon tape - 3 or 4 turns, not 1 or 2 turns. The regulator is NOT shipped oxygen clean and should NOT be used for oxygen service as provided.

Operation

The valve provides a fully automatic drain and unloading sequence and operates unattended.

For more information, please see Data Sheet