Bulletin 71.1:119 April 2008
Type 119 Control Valve
W3735-1
W3745-1
Figure 1. Type 119 Control Valve
Figure 2. Type 119 Control Valve Sectional
Introduction The Type 119 control valve (Figure 1) is used for on-off or throttling control of non-corrosive or mildly corrosive liquids and gases. It is designed to meet low-pressure liquid and gas application requirements in many varied industries.
• Easy Leak Detection —Vent hole between body and actuator stem seals allows detection of body or actuator seal leakage. • Easily Adjusted Spring —The Type 119 spring is adjusted by rotating the adjusting screw on the top of the spring case.
If the control valve requires maintenance, the trim can be exposed by removing two bolts and lifting the actuator assembly of f the valve body without disassembling the actuator. The entire procedure can be performed with an adjustable wrench.
• Easy Maintenance —The control valve can be completely disassembled without removing the valve body from the line.
Features
• Sour Gas Service Capability—Optional materials are available for applications handling sour gases. These constructions comply with the recommendations of National Association of Corrosive Engineers (NACE) MR-01-75 (1984 revision). D100006X012
• Easy Installation —Compact, lightweight construction permits easy handling and installation.
• Low Leakage —The composition disk assembly provides positive shutoff, minimizing seat leakage when downstream demand is zero.
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