Research Series

We aim to respond within 1 hour

5 x More precise than standard regulators
Extremely Wide Range of Cv. Control flow over 100,000:1 turndown ratio
High pressure capabilities
Good chemical compatibility

Solve critical performance problems for laboratory and process research gas and liquid systems

Equilibar’s Research Series back pressure regulators solve critical performance problems for laboratory and process research gas and liquid systems across both the UK and worldwide. They are especially popular for applications such as catalysis research and reservoir core analysis.

Equilibar aim to meet every demanding research condition by being extremely flexible and accommodating regarding trim styles and diaphragm materials. Wetted materials include Hastelloy, SS316L, PTFE, and FFKM (Kalrez) amongst others. The Research Series operates throughout an incredibly wide range of flow, pressure, and temperature regimes. Typical temperature ranges for any of our standard models are 150C, 200C (with viton seals and metallic diaphragm) and 327C (with Kalrez seals and metallic diaphragm). Our special High Temperature Model extends this capability up to 450C by utilizing Grafoil sealing gaskets.

Port sizes available for this series include 1/16″, 1/8″ and 1/4″ to meet most low flow / low dead volume requirements. For larger port sizes and flow rates see Equilibar’s General Service Series and Industrial Service Series.

Challenging applications requiring precision pressure control of liquid, gas, mixed phases, or even slurries can be fulfilled by the team of PCT and Equilibar Application Engineers.

Research H3P Series - Interactive 3D Model

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Key specifications

Type	1/16” – 1/4” Back Pressure Regulators
Max Operating Pressure	Up to 10,000 psig (690 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 an approximate 4X safety factor.)
Temperature Capabilities	Up to 150C (Metal Body, PTFE Diaphragm, Viton® O-rings) Up to 200C (Metal Body, Metal Diaphragm, Viton® O-rings) Up to 300C (Metal Body, Metal Diaphragm, Kalrez® O-rings) Up to 450C (HT/HTF Models, Metal Body, Grafoil Gaskets)

Wetted materials

Body Material	Stainless Steel 316/316L (standard) Also available: Hastelloy C276, Titanium, Zirconium, PTFE3, PVDF3, PEEK3, PVC3, Monel
O-Rings	Viton® (FKM) (standard) Also available: FFKM, PTFE, EPDM, Buna-N, Grafoil® (HT Only)
Diaphragm	PTFE/Glass Laminate (standard) Also available: Stainless Steel SS316/316L, Hastelloy C276, Virgin PTFE, FKM, Polyimide, Buna-N, PEEK, EPDM