Product Overview

The FISHER 627 series covers first-stage pressure reduction for LPG, natural gas, manufactured gas and air. The four 2 in NPT models share one body and trim; only the control spring changes, so a single spare parts stock serves the whole range.

Key Features

• Direct-operated spring-loaded design with sensitive shutoff and simple pressure setting

• Four outlet ranges: 0.34-1.4, 1-2.8, 2.4-5.5 and 4.8-10.3 bar

• 2 in NPT end connections, DN50 body in ductile iron or steel

• Optional internal relief valve, installable in any position

• Nitrile or FKM diaphragm and seals for LPG and natural gas service

Typical Applications

First-stage reduction at LPG cylinder manifolds and bulk tanks, inlet trains of vaporizers, industrial burner and boiler gas trains, and district gas distribution laterals where a compact DN50 regulator is required.

Selection Guide

Step down one range at a time: use 627-576 for 0.34-1.4 bar, 627-577 for 1-2.8 bar, 627-578 for 2.4-5.5 bar and 627-579 for 4.8-10.3 bar outlet. Choose the lowest range that reaches the setpoint, and specify the relief option where downstream overpressure protection is required.