With four body materials and sixteen trim material combinations, the Model 123 is compatible with most fluids. It can handle a wide range of flows and pressure settings to match nearly any back-pressure application up to a 2" line size. The regulator uses four composition seat materials and controlled compression with metal-to-metal back-up for long life and trouble-free operation.

The Model BQ is designed for lower-flow installations to control flow rates not covered by Model 123. It is often used in economizer circuits. It is also a popular cryogenic regulator and widely used in chemical process services.

The Model 1171 is a back pressure/relief regulator suitable for most liquid and gas applications - including pump by-pass and modulating back pressure relief services.

The Model 1164 is equipped with a variety of body and trim materials that make it compatible with many fluids and chemicals. Its large orifice and diaphragm combine sensitivity with high capacity.

Model 2171 is similar in design and capacity to its brass- bodied counterpart, but its SST body and trim enable it to handle and even wider range of fluids.

This heavy-duty, angle-bodied regulator can handle high inlet and outlet pressures plus high pressure drops. Six range springs provide wide setpoint selection. Applications include fuel oil, water, inert gases, air, and chemicals.

When air and electric controls are not available, these reliable high-capacity regulators can be used in place of control valves. Dual-port construction makes these our highest-capacity back pressure regulators. Both models share the same basic design, differing only in diaphragm size.

Designed for lower flow applications. It is often used in small pump set applications as well as the cryogenic and compressed gas industry. Metal lapped seats allow for leakage rate to approach levels of composition seats.