Flange 
Connections Valve size: 2″ to 4″
Maximum working pressure at 100º F285 psi (1,964 kPa)
740 psi (5,099 kPa)
1,480 psi (10,197 kPa)
Temperature Range: -20º F to 150º F (-29º C to 66º C)
Materials of Construction  
Valve body: Carbon steel
ASTM-A352-GR-LCC
Cylinder: 17-4 stainless steel
Piston: 304 stainless steel
Seat Ring: 303 stainless steel
Elastomers: Viton
Spring: Chromium silicone (877 Grade A)
(877 Grade A) springs
Tubing and fittings: 316 stainless steel*
*Pressure sensing line needed to perform check valve functionality. Not a pilot line
Spring Ranges  
Field adjustable, valve differential pressure range
Range #1: 5 – 40 psi (single light spring)
Range #2: 30 – 80 psi (single heavy spring)
Range #3: 30 – 120 psi (light and heavy, nested springs)
Selection Requirements  
1. Line Size
2. Pressure
3. Temperature
4. Set Point Pressure*
5. Flange Connections
*Note: Set point is used to determine spring range. Customer will need to adjust set point in the field.

Daniel 707 Back Pressure Internal Pilot Control Valve

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2” 150# V707 Back Pressure Valve

5 to 40 PSI P\N= 521090-692

30 to 80 PSI   P\N= 521090-693

30 to 120 PSI P\N= 521090-694

2” 300# V707 Back Pressure Valve

  -5 to 40 PSI P\N= 523090-692

-30 to 80 PSI   P\N= 523090-693

-30 to 120 PSI P\N= 523090-694

2” 600# V707 Back Pressure Valve

-5 to 40 PSI P\N= 526090-692

-30 to 80 PSI P\N= 526090-693

-30 to 120 PSI P\N= 526090-694

3” 150# V707 Back Pressure Valve

-5 to 40 PSI P\N= 531093-692

-30 to 80 PSI P\N= 531093-693

-30 to 120 PSI P\N= 531093-694

3” 300# V707 Back Pressure Valve

-5 to 40 PSI P\N= 533093-692

-30 to 80 PSI P\N= 533093-693

-30 to 120 PSI P\N= 533093-694

3” 600# V707 Back Pressure Valve

-5 to 40 PSI P\N= 536093-692

-30 to 80 PSI P\N= 536093-693

-30 to 120 PSI P\N= 536093-694

4” 150# V707 Back Pressure Valve

-5 to 40 PSI P\N= 541090-692

-30 to 80 PSI P\N= 541090-693

-30 to 120 PSI P\N= 541090-694

4” 300# V707 Back Pressure Valve

-5 to 40 PSI P\N= 543093-692

-30 to 80 PSI P\N= 543093-693

-30 to 120 PSI P\N= 543093-694

4” 600# V707 Back Pressure Valve

-5 to 40 PSI P\N= 546090-692

-30 to 80 PSI P\N= 546090-693

-30 to 120 PSI P\N=546090-694