ZF Zero Flow Back Pressure Regulator | Equilibar Precision Control

ZF Zero Flow Back Pressure Regulator

Port Sizes:
1/16"1/8"
Typical Pressure Ranges:
0 - 60 psi0 - 100 psi0 - 150 psi0 - 175 psi
0 - 200 psi0 - 250 psi0 - 300 psi0 - 400 psi
0 - 500 psi0 - 750 psi0 - 1000 psi0 - 1500 psi
0 - 2000 psi0 - 2500 psi0 - 3000 psi
Body Material (Standard):
Stainless Steel 316/316L
Body Material (Optional):
Hastelloy C276, PEEK
Max CV:
0.015
Key Applications:

Reservoir Core Analysis

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Product Description
Image of Equilibar ZF Zero Flow back pressure regulator

ZF Zero Flow Back Pressure Regulator

The Equilibar ZF series has the unique ability to hold back pressure constant to the true zero-flow point, with no hysteresis or dead band as flow resumes. Unlike other Equilibar BPR’s, it uses a special rubber seal.

ZF regulators come in 1/16″ and 1/8″ port sizes.

The ZF was created in response to the demanding requirements of our customers in the oil and gas industry, specifically those doing reservoir core analysis research. Core analysis applications often involve holding pressure with no flow for long periods of time before flow begins. When flow begins, it is desired to retain the exact same pressure as the zero flow condition.

Traditional spring-loaded regulators have a strong closing bias which results in a large differential pressure between flowing and static conditions. This is often referred to as “cracking pressure” or “opening bias”. The Equilibar ZF series back pressure regulator utilizes a patented floating O-ring hub which the diaphragm seals directly against for seamless shut off.

Please contact an application engineer with any questions.

Videos
Image of Equilibar ZF Zero Flow back pressure regulator

ZF Zero Flow Back Pressure Regulator

ZF pressure regulator for nano flow rates

How Equilibar Back Pressure Regulator Works

Downloads
Applications
Image of Equilibar ZF Zero Flow back pressure regulator

ZF Zero Flow Back Pressure Regulator

Additional Specs
Image of Equilibar ZF Zero Flow back pressure regulator

ZF Zero Flow Back Pressure Regulator

Weight:

2.21 lbs (1.0024 kg)

Dimensions:

Dimensional Sketch of GS Series Back Pressure Regulator

 

Dim A: 2.5 in (64 mm)
Dim B: 1.7 in (42 mm)

 

 

Fitting/Threads:

Standard: NPT or HPLC (ZF0)
Optional: HiP (High Pressure); BSPP; Swagelok VCO®; Swagelok VCR®; Tube Stub; HPLC; Autoclave Speed‐Bite W125; custom

How It Works

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