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The Brodie BV60 Back Pressure Control/Pressure Relief Valve is designed for close regulation of back pressure, pressure relief and surge control.

In applications for metering systems or pipelines, the BV60 is used to hold a minimum back pressure on the outlet of a meter for more consistent operating conditions. In applications of pump relief or bypass, the valve is used to relieve excess pressure.

A constant back pressure is maintained within +/-2 psi [13.8 kPa] of set point, regardless of variations in flow rate or upstream pressure.

Brodie Valve Disassembly

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Brodie Valve Assembly

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Valve Size     2″ 3″ 4″ 6″ 8″ 12″
Dimensions 150 # Inches 10¼ 11 13 17 22½ CF
[flange to flange] MM 260 279 330 432 571 CF
Dimensions 300 # Inches   13⅛ 14½ 17⅞ 23½ CF
[flange to flange] MM   333 368 454 597 CF
Capacity CV-GPM   71 187 237 590 1178 CF
Pressure 150 #   SEP SEP SEP CRN, PED CRN, PED CF
Approvals 300 #   PED PED PED CF

CHECK VALVE FUNCTIONALITY

The valve piston spring, biased to the closed position, has equal front and rear surface areas. This means that every Brodie Model BV valve has check valve functionality, with bubble-tight shut-off – no additional system check valve is required to prevent reverse flow. The valve will only open when upstream pressure is sufficient to overcome spring force.

BRODIE VS DIAPHRAGM VALVES

There are many advantages in using piston-operated control valves as opposed to diaphragm-operated valves, including:

  • High flow capacity – lower pressure drop
  • Optimum control at low flow gives better batching control
  • Simple O-ring sealing – no special diaphragms
  • Alternative O-rings easily obtainable per product specifications

Designed to meet the challenges for today’s petroleum and environmental needs, Brodie’s positive sealing and linear action control valves provide uniform speed of response and leak-proof performance.

 

REDUCED COST OF OWNERSHIP

  • Long service life, only one moving part
  • Cylinder can be removed without removing body from the line
  • Cylinder assemblies available as replacement kits

SECURITY & CONTROL

  • Automatic shutoff for emergency protection
  • Pressure monitoring at all times

UNIFORM SPEED OF RESPONSE
Flow modulation avoids delayed response and valve slam.

  • Pilot operated
  • Positive Sealing/Zero Leakage
  • Modular construction/easy inline service
  • Adjustable opening and closing speeds – prevents damaging shock pressure
  • Linear action control for uniform fast speed of control
  • Simple design without diaphragms
  • Common valve body and internal mechanism simplifies spare parts inventory
  • Multiple control functions can be performed with one valve