• v707

V707 Spring Loaded Back Pressure Control Valve

Delivering Greater Reliability in Pipeline Applications

The Daniel® V707 Spring Loaded Back Pressure Valve offers an innovative way to maintain back pressure and provides an integrated check functionality combining two valves in one, requiring no pilots or external actuation. The V707 is an addition to the Daniel 700 Series Control Valve family of products, applying the well-known and trusted Daniel Control Valves technology to maintain back pressure.

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Flange Connections Valve size: 2″ to 4″
Maximum working pressure at 100º F

  • 285 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.
  • No power required
  • No diaphragms or stuffing boxes
  • Modular construction: all internal parts, including seat ring, can be removed with the cylinder assembly without disturbing line connections
    *Line must be drained and valve must be isolated for service.
  • 45º body design assures high capacity Positive shut-off, ANSI Leakage Class VI (ANSI B16.105 – 1976)
  • Inherently check valve functionality Metal-to-metal seat with protected o-ring
  • Full working pressure (ANSI 150, 300 and 600)
  • Pilotless
  • Tamper-proof set point locking capable
Line Size DN50 to DN200 (2-in to 8-in)
Fluid Type Liquid
Operating Temperature Range -29º C to +66º C (-20º F to +150º F)
Operating Pressure Range ANSI 150 to 300
Materials: Valve Body Carbon Steel, ASTM A352 GR LCC
Materials: Valve Cylinder DN50 to DN 200 (2-in to 4-in): Stainless Steel, ANSI 150 to 600; DN250 to DN 300 (6-in to 8-in) Carbon Steel, Nickel Coated, ANSI 150 to 600
Materials: Valve Piston Standard: Stainless Steel
Materials: Seat Ring DN50 to DN200 (2-in to 6-in) Stainless Steel; DN300 (8-in) Carbon Steel, Nickel Coated
Materials: O-Rings Standard: Viton; Optional: Neoprene, EPR, Kalrez / Teflon AP (Aggressive Products)