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Model BV70 Differential Control Valve

Brand: Brodie International
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The Brodie BV70 differential control valve is a normally closed, regulating or positioning type valve designed for applications requiring valve closure on decreasing pressure differential such as pump differential pressure control and vapor pressure control for products with high flash points. 

The valve does not require an outside power source to operate.

A controlled pressure differential is maintained within +/-2% regardless of variations in upstream or downstream pressure.
Features
  • Modular construction - all internal parts including seat ring can be removed with the cylinder assembly without disturbing line connections
  • No diaphragms or stuffing boxes
  • 45° body design assures high capacity
  • Positive shut-off
  • Uniform speed of response
  • Linear control characteristics
  • Inherently checks reverse flow
  • O-Ring plus metal-metal seat
  • Characterized ports for better low flow response
The Brodie BV70 differential control valve is a normally closed, regulating or positioning type valve designed for applications requiring valve closure on decreasing pressure differential such as pump differential pressure control and vapor pressure control for products with high flash points. 

The valve does not require an outside power source to operate.

A controlled pressure differential is maintained within +/-2% regardless of variations in upstream or downstream pressure.
Features
  • Modular construction - all internal parts including seat ring can be removed with the cylinder assembly without disturbing line connections
  • No diaphragms or stuffing boxes
  • 45° body design assures high capacity
  • Positive shut-off
  • Uniform speed of response
  • Linear control characteristics
  • Inherently checks reverse flow
  • O-Ring plus metal-metal seat
  • Characterized ports for better low flow response
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Specifications

Brand

Enclosure, Body Material

  • Carbon Steel (ASTM -A216-GR-WCB)

Materials of Construction

  • Main Valve Cylinder: 630 (17-4) Stainless Steel
  • Main Valve Piston: Stainless Steel

Seat / Seal Material

  • O-Ring: Viton Standard
  • Seat Ring: Stainless Steel
  • Seat: Metal

Valve Capacity

  • 2”: 90 Cv/gpm
  • 3”: 190 Cv/gpm
  • 4” 315 Cv/gpm
  • 6”: 700 Cv/gpm

Maximum Working Pressure

  • 150 lb ANSI: 285 psi
  • 300 lb ANSI: 740 psi
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