Cartridge III Valve

For use as a replacement valve with Brooks® purge meters.

Models 947N

The Cartridge III Valve is a multipurpose valve, designed for use with Brooks® purge meters in gas and liquid flow applications. It is interchangeable with previous versions of Brooks valves.

These valves come in three different sizes – low, medium and high flow. The stem is conical tapered at the end and it has two orifice sizes that provide a wide choice of flow ranges for all models. A Teflon piece is crimped into the valve body which gives better setability, repeatability and feel of operation.

Description

Features
  • Eight turns open-to-close
  • Large knob
  • Excellent setability and repeatability
  • Rugged design\
For Use With
  • 1350G
  • 1350E
  • 1355G
  • 1355E
  • 3750C
Specifications

Product Type

Valve

Differentiator

Three Sizes Available: Low, Medium and High Flow
Wide Choice of Flow Ranges
Eight Turns Open-to-Close

Flow Range (Full Scale Capacity)

Air
5.7 – 75.6 slpm

Water
0.176 – 2.04 lpm

Cv
0.015 – 0.193

See Capacity Tables in Data Sheet

Max Pressure

2000 psi (138 bar)

Max Temperature

200oC (400oF)

Materials of Construction

Valve Body & Stem
316 Stainless Steel

Orifice
PEEK Arlon® 1126 15% glass filled

Valve Ring
Teflon® (PTFE)

O-Rings
Standard: Viton® fluoroelastomers
Optional: Buna, Kalrez®, EPR, Teflon®, Butyl

Knob
Phenolic (Thermoset)

Housing

316 Stainless Steel (body and stem)

O-Ring Materials

Standard
Viton® fluoroelastomers

Optional
Buna, Kalrez®, EPR, Teflon®, Butyl

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