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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Bulletin 71.1:119 Specifications Body Sizes and End Connection Styles(1) 3/4, 1, or 1-1/4-inch NPT
Spring Case and Bonnet Vents 1/4-inch NPT female
Maximum Inlet Pressure(2) 150 psig (10,3 bar)
Construction Materials Standard Construction Valve Body: Cast iron Spring Case: Aluminum Bonnet: Aluminum Disk Holder Assembly: Aluminum and Nitrile (NBR) (standard), Stainless steel and Nitrile (NBR) or Stainless steel and Fluorocarbon (FKM) Orifice: Aluminum (standard) or Stainless steel Diaphragm: Nitrile (NBR) or Fluorocarbon (FKM) O-Rings: Nitrile (NBR) (standard) or Fluorocarbon (FKM) Stem Wiper: Polytetrafluoroethylene (PTFE) Adjusting Screw: Steel Spring: Steel
Maximum Pressure Drop(2) 150 psig (10,3 bar) for all port diameters Maximum Spring Case Pressure 150 psig (10,3 bar) Spring Ranges See Table 1 Material Temperature Capabilities(2) With Nitrile (NBR): -20 to 180째F ( -29 to 82째C) With Fluorocarbon (FKM): 0 to 250째F ( -18 to 121째C) Note: Not for use with hot water or ammonia. Orifice Size and Flow Coefficients See Table 2 Pressure Setting Adjustment May be adjusted throughout each spring range by rotating the adjusting screw Valve Plug Travel 3/16-inch (4,76 mm) Actuator Pressure Connection 1/4-inch NPT female
NACE Construction Body: Steel Disk Holder Assembly: Aluminum/ Fluorocarbon (FKM) Diaphragm/Stem Assembly: Aluminum/ Fluorocarbon (FKM) O-Rings and Internal Retaining Rings: Fluorocarbon (FKM) Approximate Weight 6 pounds (2,72 kg)
1. End connections threaded to various national or international thread standards can usually be supplied. Contact the Fisher sales office or sales representative. 2. The pressure and temperature limits in this bulletin and any applicable code limitation should not be exceeded.
Installation The Type 119 control valve may be installed in any position, but normally the actuator is vertical above the valve body . Install the valve body such that the direction of the process flow matches the flow direction arrow on the side of the body . Each control valve has a screened vent in the spring case and in the valve bonnet. On indoor installations, these vents should be piped outdoors with the shortest, straightest pipe of the largest practical diameter.
2
Table 1. Spring Selection SPRING RANGE, PSIG (bar)
SPRING PART NUMBER
SPRING COLOR CODE
3 to 15 (0,21 to 1,03) 5 to 20 (0,34 to 1,38) 5 to 35 (0,34 to 2,41) 30 to 60 (2,07 to 4,14)
1D892327022 1D751527022 1D665927022 1D7455T0012
Red Silver Blue Green
For both indoor and outdoor installation the vents or vent pipe must be protected from debris, weather, condensation, or anything else that might clog it. Overall dimensions are shown in Figure 3.
Bulletin 71.1:119 NACE Standard MR-01-75 Compliance
4.12 (105)
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). The manufacturing processes and materials used by Fisher Controls assure that all products specified for sour gas service comply with the chemical and physical requirements of NACE standard MR-01-75.
8.00 (203) MAXIMUM
Ordering Information When ordering, specify:
3/4, 1, OR 1-1/4-INCH NPT
Application Information 1.53 (38,9)
1. Controlled fluid a. Type (include chemical analysis, if possible) b. Temperature (normal and maximum anticipated) c. Specific gravity
2.12 (53,8) INCHES (mm)
4.00 (102) A2952-1
2. Range of flowing inlet pressures 3. Pressure drops a. Range of flowing pressure drops b. Maximum drop at shutof f
Figure 3. Dimensions
4. Flow rates a. Minimum controlled flow b. Normal flow c. Maximum flow
Control Valve Information Refer to the Specifications section on page 2, and carefully review the description to the right of each specification. Indicate your choice whenever a selection is of fered.
5. Input signal range to actuator
Table 2. Type 119 Valve Flow Coefficients VALVE TRAVEL, INCH (mm)
3/16 (4,76)
ORIFICE SIZE, INCH (mm)
3/4-INCH (DN 20) BODY
1-INCH (DN 25) BODY
1-1/4-INCH (DN 32) BODY
Cv
Cg
C1
Cv
Cg
C1
Cv
Cg
C1
1/8 (3,18)
0.43
12.5
29.1
0.43
12.5
29.1
0.43
12.5
29.1
3/16 (4,76)
0.95
27.8
29.3
0.95
27.8
29.3
0.95
27.8
29.3
1/4 (6,35)
1.70
48.3
28.4
1.70
48.3
28.4
1.70
48.3
28.4
5/16 (7,94)
2.64
76.5
29.0
2.64
76.5
29.0
2.64
76.5
29.0
3/8 (9,53)
3.22
104
32.3
3.3
105
31.8
3.57
106
29.7
1/2 (12,7)
4.7
176
37.4
5.0
178
35.6
5.75
183
31.8
9/16 (14,3)
5.6
213
38.0
5.9
218
36.8
7.2
230
31.9
3
Bulletin 71.1:119
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