Brand Hydraulics Adjustable Flow Control Valve FC51-1/2 - 1/2" Ports

Brand Hydraulics IHI-FC51-1-2

Availability: In stock


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Brand Hydraulics 1/2" Adjustable Flow Control

Brand Adjustable Flow Control Valve - FC51-1/2

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Pressure Compensating Adjustable Flow Control

The Brand, full range pressure compensating variable flow control is designed so that the orifice area varies as the lever is rotated. Fluid travels past the variable orifice, through the compensator spool and then out the controlled flow port. Therefore the flow out of the CF port is proportional to the orifice area which can vary from closed to open. The sum of the controlled flow and the excess flow equals the inlet flow and as the controlled flow increases the excess flow decreases. Both outlet flows are pressure compensated with a spool that maintains a constant flow by adjusting for pressure. Hunting between the compensated pump and our valve is dampened with a dashpot on the compensator spool. Thus, the outlet flow is smooth and constant regardless of the pressure on the CF and EX port. External seals on the rotary spool prevent contamination from getting between the spool and the casting, thus preventing the spool from locking in one position. All FC’s are built with stainless steel (416) rotary spools to help prevent the rotary spools from locking up when they are in a corrosive environment. We also offer the FC with outlet ports coming from the top of the casting.

Standard Features:

  • DIAMOND HONED SPOOL BORE provides consistent spool fit with low leakage.
  • EVERY FC VALVE IS FULLY TESTED for shutoff, max. flow, and pressure compensation.
  • 3-PORT CONFIGURATION allows for pressure compensated flow out of two ports.
  • 416 STAINLESS STEEL rotary lever spool to prevent the spool from locking up.
  • SAE ORB COMPENSATOR PLUGS to eliminate external leakage from the compensator bore.
  • SEALS ON ROTARY SPOOL prevents contamination from locking up spool.

Optional Features

  • TOP PORT allows the customer to plumb their pipe directly in line with the inlet.
  • 2-PORT allows for pressure compensated flow out of one port.
  • 316 STAINLESS STEEL rotary spool provides highest corrosion resistance.
  • FREE REVERSE FLOW allows fluid to move from the CF (control flow) and EX (excess flow) port to the inlet. (Single reverse flow is also available)


  • See flow chart for capacity.
  • Rated for 3000 psi (207 bar).
  • Weighs 7.75 lbs. (3.52 kg).
  • 30-Micron Filtration Recommended.
  • Torque to turn side lever spool= 35 in-lbs with 3000 psi (207 bar) on EX Port.


  • Cast Iron Body.
  • Heat Treated Compensator Spool.
  • Stainless Steel Rotary Spool.
  • Buna N O’Rings (Standard)
  • Heat Treated Free Reverse Check Seat

Product Specifications

Port TypeNPT
Port Size1/2"
Max GPM16
Max PSI3000
Pressure ReliefNo
Relief SettingNo

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