NRS™ ニードル コントロールバルブ

Low Flow Gas & Liquid Flow Control Valves
モデル 8503F / 8504F

The Brooks® NRS™ (non-rising stem) control valves are designed specifically for extremely low flow gas and liquid applications. Straight and 90° angle pattern models in stainless steel are available. They feature a means of adjusting a sliding tapered needle which prevents sticking due to foreign matter in the fluid. These valves are particularly suitable for precise control requirements and possess a high turns to lift ratio. The flow is constant for any given stem position.

Six needles with different tapers provide a wide choice of flow ranges. Needles and orifices can be changed without removing the valve body from the line (two different orifices are used, one for needle sizes 1-3, another for sizes 4-6).

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電話:03-5633-7100

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製品タイプ
Valve
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差別化要因

Designed for Extremely Low Flow Applications

Straight and 90° Angle Pattern Models Available

Wide Choice of Flow Ranges

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流量範囲(フルスケール容量)
See Capacities & Pressure Drops Table in Data Sheet
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最高圧力
Stainless Steel Model: 1000 psig
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最高気温
Stainless Steel Model: 250oF (120oC)
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Connections

Standard: 1/8" female NPT - integral

Optional: 1/8", 1/4" compression fitting; 1/4" female NPT; 1/4" ID hose type adaptors

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Dimensions
See Dimensions Figure
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構造材質

Body
316 Stainless Steel

Orifice
Size 1-3: Stainless steel and Teflon®;
Sizes 4-6: Stainless Steel

Valve Needle
316 Stainless Steel

Plunger
Stainless Steel

O-Rings
Viton® fluoroelastomers

8503F 8504F
Configuration NRS Angle Pattern NRS In-line Pattern
Filename File Type Documents By Language
Data Sheet pdf English