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Used for two-position or modulating control of steam and water and glycol solutions (to 50 percent concentration) in heating or cooling systems.


  • Sizes range from 2-1/2 to 3 inches.
  • Direct acting
  • High pressure steam models with stainless steel trim.
  • Spring-loaded, self-adjusting packing.
  • Stainless steel stem prevents corrosion.
  • Valve designs provide equal percentage characteristics of flow for close control of water, and linear characteristic of flow for close control of steam or chilled water.
  • Valves utilize direct mounting, electric or pneumatic linear valve actuators; Q5001 linkage with Modutrol Motor; or Q5020/Q5022A linkages with Direct Coupled Actuators to operate the valve.

Product Specifications

Dimensions (in.)
9 1/4 in. high x 2 5/8 in. wide x 8 7/8 in. deep
Dimensions (mm)
234 mm high x 66 mm wide x 225 mm deep
Maximum Safe Operating Pressure (psi)
250 psi at 100 F water; 217 psi at 250 F water; 15 psi steam
Maximum Safe Operating Pressure (kPa)
1724 kPa at 38 C water; 1496 kPa at 121 F water; 100 kPa steam
Used With
Q5001/Modutrol IV Motor; MP953; Q5020/DCA; ML6984/ML7984; ML6420,21A,25; ML7420/ML7421A/ML7425
Connection Type
Female NPT
Body Pattern
Two-way, Straight-through
Pipe Size (inch)
3 in.
Pipe Size (DN)
Fluid Temperature (C)
4 C to 169 C
Fluid Temperature (F)
40 F to 337 F
Bonnet Size (in.)
1-3/8 in.
Maximum Differential Pressure Ratings (Close-off) (psi)
For Quiet Water Service--20 psid
Maximum Differential Pressure Ratings (Close-off) (kPa)
For Quiet Water Service--138 kPa
Capacity (Cv)
100 Cv
Capacity (Kv)
85 kvs
Valve Action
Stem down to close
Valve Type
Globe Valve
Controlled Fluid
Chilled or hot water with up to 50% Glycol. Not for use with steam or fuels.
Materials (Body)
Red Brass
Materials (Seat)
Materials (Stem)
Stainless Steel
Materials (Cartridge)
Flow Characteristic
Equal Percentage
Must be purchased separately
Static Pressure Rating (psi)
Meets ANSI 150 Standard
Static Pressure Rating (kPa)
Meets ANSI 150 Standard
Stem Travel (in.)
3/4 in.
Stem Travel (mm)
20 mm
Bonnet Size (mm)
35 mm
Materials (Plug/Ball/Disc)
Brass plug with TeflonĀ® disc
Materials (Packing)
Teflon and Nitrile
0.5% of Cv
Approvals, CRN Number
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