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Model DF234 Control Valve
Brand: Dyna-Flo Control Valve ServicesThe Dyna-Flo Model DF234 Control Valve is primarily designed for on/off control of a variety of gases or fluids.
These tough valves are manufactured for use as dump valves and feature a low profile and lightweight design that fits into tight locations and makes for easier handling.
The DF234 is well suited for many other high pressure gas or fluid applications up to 2,250 psig (15,513 kPa).
The DF234 is available in 1 inch and 2 inch sizes, either in a globe or angle style valve body with threaded NPT or flanged connections.
The Dyna-Flo Model DF234 Control Valve is manufactured to a high level of quality specifications to ensure superior performance and customer satisfaction.
Features- NACE Service ready
- ASME Class 900/1500
- Live loaded packing
- Field-reversible actuator
- Easily maintained
- Low temperature materials
- Oper yoke
- Versatile trim material options
1 - 12 of 2,400 Part Numbers
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DF234-1C3-2AF-10S
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 1"
- Trim Material - 630 Stainless Steel (17-4 PH)
DF234-1C3-2AF-10T
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 1"
- Trim Material - S30300 / Tungsten Carbide
DF234-1C3-2AF-12S
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 1/2"
- Trim Material - 630 Stainless Steel (17-4 PH)
DF234-1C3-2AF-12T
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 1/2"
- Trim Material - S30300 / Tungsten Carbide
DF234-1C3-2AF-14S
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 1/4"
- Trim Material - 630 Stainless Steel (17-4 PH)
DF234-1C3-2AF-14T
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 1/4"
- Trim Material - S30300 / Tungsten Carbide
DF234-1C3-2AF-34S
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 3/4"
- Trim Material - 630 Stainless Steel (17-4 PH)
DF234-1C3-2AF-34T
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 3/4"
- Trim Material - S30300 / Tungsten Carbide
DF234-1C3-2AF-38S
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 3/8"
- Trim Material - 630 Stainless Steel (17-4 PH)
DF234-1C3-2AF-38T
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RF
- Trim - 3/8"
- Trim Material - S30300 / Tungsten Carbide
DF234-1C3-2AJ-10S
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RTJ
- Trim - 1"
- Trim Material - 630 Stainless Steel (17-4 PH)
DF234-1C3-2AJ-10T
- Valve Size - 1"
- Body Style - Globe
- Actuator - Fail-Closed
- Spring Range - Size 33 Actuator with 0 to 22 psig Operating Signal
- Number of Springs - 3
- Pressure Rating - Class 150
- Connection - RTJ
- Trim - 1"
- Trim Material - S30300 / Tungsten Carbide
1 - 12 of 2,400 Part Numbers
Specifications
Bonnet Material
- Carbon Steel (LCC)
Bushing Material
- Valve Stem Bushing: Nylon
Diameter
- Port Diameter: 1/4”, 3/8”, 1/2”, 3/4”, 1”
Diaphragm Material
- Actuator Diaphragm: Nitrile/Nylon
Enclosure, Body Material
- Carbon Steel (LCC)
Flange Size - 1” (DN 25)
- 1” (DN 25) - 150#
- 1” (DN 25) - 300#
- 1” (DN 25) - 600#
- 1” (DN 25) - 900#
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150#
- 2” (DN 50) - 1500#
- 2” (DN 50) - 300#
- 2” (DN 50) - 600#
- 2” (DN 50) - 900#
Materials of Construction
- Cage / Seat Ring & Bonnet / Cage Spacer: 630 Stainless Steel (17-4 PH)
- Upper/Lower Diaphragm Casing: Steel/Zinc
- Valve Stem, Shperical Washer & Pin: 316 Stainless Steel
- Washer: 302 Stainless Steel
Maximum System Pressure
- Maximum
NACE & NIST
- NACE
NPT Connection
- 1” NPT Female
- 2” NPT Female
- Actuator Pressure Connection: NPS 1/4” NPT
O-Ring Material
- HNBR
Packing Material
- PTFE / CPTFE
Pressure Drop
- Maximum
Spring Material
- Actuator Spring: Steel/Zinc
- Inconel X-750
Temperature Range
- Actuator: -40° to 82° C (-40° to 180° F)
- Body: -46° to 149° C (-50° to 300° F)
Trim Material
- 303 Stainless Steel
- 630 Stainless Steel (17-4 PH)
- Tungsten Carbide