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.

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Cartridge Valve III Data Sheet

Overview

Features

Eight turns open-to-close
Large knob
Excellent setability and repeatability
Rugged design

For Use With

1350G
1350E
1355G
1355E
3750C

Models

947N

Configuration

Low Flow

Buna O-Ring - P/N: 947N091BMA

Viton® O-Ring- P/N: 947N092BMA

Butyl O-Ring - P/N: 947N093BMA

EPR O-Ring - P/N: 947N094BMA

Kalrez® O-Ring - P/N: 947N095BMA

Kalrez®/Teflon® O-Ring - P/N: 947N096BMA

Medium Flow

Buna O-Ring - P/N: 947N097BMA

Viton® O-Ring - P/N: 947N098BMA

Butyl O-Ring - P/N: 947N099BMA

EPR O-Ring - P/N: 947N100BMA

Kalrez® O-Ring - P/N: 947N101BMA

Kalrez®/Teflon® O-Ring - P/N: 947N102BMA

High Flow

Buna O-Ring- P/N: 947N103BMA

Viton® O-Ring - P/N: 947N104BMA

Butyl O-Ring - P/N: 947N105BMA

EPR O-Ring - P/N: 947N106BMA

Kalrez® O-Ring - P/N: 947N107BMA

Kalrez®/Teflon® O-Ring - P/N: 947N108BMA

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

200^oC (400^oF)

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

Documentation

Filename	File Type	Documents By Language
Data Sheet	pdf	English

Cartridge III Valve

Questions?

For pricing information:

Brooks Instrument BV

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