General Service GSD

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5 x More precise than standard regulators
General service back pressure regulator
Available from 1/4" to 1" sizes
Highly accurate for low and high pressures
Liquid, gas or mixed phase applications
CV values up to 8.5

General Service GSD Back Pressure Regulator

Equilibar’s General service series back pressure regulators ensure fast and stable pressure control of gases, liquids, and mixed-phase fluids. A robust and rugged design utilizes a 2-piece bar-stock body construction, with sizes ranging from 1/4″ through to 1″. Common materials in stock are SS316L and PVC; with other available materials being PTFE, PVDF, and carbon steel.

Applications for the GS Series are common across a great many industry sectors however some notable examples would include fuel cell testing and vacuum applications.

General Service GSD - Interactive 3D Model

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Equilibar Back Pressure Regulators can be made from PTFE, SS316, Hastelloy, Zirconium, Titanium and more

Precision at Low and High Pressures

The GS Series are available with a great many different trims although GR (more efficient for the lower pressures) and NR (more robust for higher pressures) are perhaps most widely used. Your application engineer will recommend the best trim for your application.

The GSD2 series of back pressure controller is one of the most popular within the Equilibar general series. Standard wetted material is Stainless Steel 316/316L and options also include Hastelloy C276, Anodized Aluminium, and PVC.

The GSD2 is available with ¼" connections and is used in larger research applications whilst also being suitable for small industrial gas and liquid systems.

Key specifications

Type	Back Pressure Regulator
Max Operating Pressure	Up to 2,500 psig (172 bar). Pressure ratings listed in the table are the maximum possible pressure that a unit may be configured to. Units can be configured for optimum performance at lower pressures.
Proof Pressure	150% Rated Pressure (All Equilibar units are tested to 150% of their rated pressure prior to shipment)
Design Pressure	400% Maximum Body Pressure (Designed according to ASME B31.3, which incorporates a 4X safety factor.)
Temperature Rating	Up to 40C (Polymer Body)

Wetted materials

Body Material	PVC (standard) Also available: PTFE, PVDF, PEEK
O-Rings	Viton® (FKM) (standard) Also available: FFKM, PTFE, EPDM, Buna-N.
Diaphragm	PTFE/Glass Laminate (standard) Also available: Virgin PTFE, FKM, Polyimide, Buna-N, PEEK, EPDM