Aqua Environment 1247-3-B 1247 Series Inline Reducing Regulator Hand/Spring Loaded 1/4" NPT 40 to 120 PSI Outlet Kel-F Seat and Viton O-Rings

The model 1247 is a small, economical piston type spring loading regulator. It is suitable for either gas or liquid service. The regulator is self venting. Venting occurs when outlet pressure rises 20 to 60% above set pressure.

Installation

The regulator can be mounted in line in a tubing or pipe run. Use a suitable pipe thread sealant such as teflon tape on the 1/4" inlet and 1/4" outlet connections. The 1/4" thread at the bottom (in item 1) is the inlet. Connect the inlet to the source gas such as a high pressure storage tank. The outlet is capable of being adjusted from 0 to 1000 PSI or lower pressure ranges depending on the spring used.

AN OUTLET GUAGE AND RELIEF VALVE SET SLIGHTLY HIGHER THAN THE DESIRED OUTLET PRESSURE SHOULD BE CONNECTED TO THE OUTLET. IF THE INLET PRESSURE CAN EXCEED 6000 PSI A RELIEF VALVE SHOULD ALSO BE INSTALLED AT THE INLET TO PREVENT EXCEEDING 6000 PSI. Avoid overtorquing pipe threads. Normal torque with a 6 or 8 inch wrench is ample. Use ample teflon tape - 3 or 4 turns, not 1 or 2.. The regulator is NOT shipped oxygen clean and should NOT be used for oxygen service as provided.

Operation

Outlet pressure can be adjusted by turning the body item 1 into or out of the cap item 3. Once desired pressure is obtained lock nut item 2 can be tightened against the cap 3 to prevent further movement. The regulator should not be set under pressure. It is intended primarily for applications where one outlet pressure is used.

Maintenance and repair caution

As with any regulator or valve, particulates or moisture can plug or freeze the internal filter or valve seat. This can occur when upstream dryers are not changed or remain unused for long periods allowing corrosion materials to accumulate. In critical applications where it is important not to lose flow, a larger particulate filter should be used upstream.

For more information, please see Data Sheet