SVB-Series Standard with Threaded Connections


SVB-Series Standard with Threaded Connections

Tuesday, January 23, 2024
SVB-Series Standard with Threaded Connections image


SVB: Brass

  • Specially designed for flammable fluids
  • UL 842 Approved
  • API 614 & 520 Approved
  • Chatter-free operation
  • Mount in any position
  • Suitable for continuous duty

Size Range: 3/8″ – 2″

Pressures: 3 – 500 psi

Flow Rate: Up to 150 gpm



Fulflo valves can be mounted in any position. A tee may be inserted in the pump discharge line to mount the valve. The correct size of the valve should be installed, preferably matching the pump discharge line. Screw the valve into the nipple in the tee. When the valve is used for frequent bypassing of oil under pressure, its outlet should be piped back to the tank. Care must be taken to have the discharge well below the oil level in the tank to prevent air entrainment and erratic operations.

Only if the valve is used as safety or overload relief and operates infrequently may its discharge be piped back into the pump suction line. Frequent or continuous operation under these conditions will cause excessive heating of the oil and possible damage.

Setting Valves

The valve may be set with a hand pump for cracking pressure. It will be noted that the maximum set pressure is limited by the collar “J” soldered to the adjusting screw “C”.

If a test stand is available, the valve should be connected to the discharge header with the pump bypass open, and the bypass gradually closed until the desired pressure registers on the gauge. Adjust the valve adjusting screw until the valve slightly bleeds at the set bypass pressure and lock adjusting screw.

If the valve is required to bypass a given amount of fluid at a given pressure, a test stand having a flow meter in the pump discharge line must be available. With the valve adjusted for cracking pressure as above, continue closing the bypass until the required flow registers on the flow meter and observe pressure. Re-adjust pressure, if necessary, to obtain the desired pressure at the desired flow.

Maintenance & Operation

Fulflo valves provide reliable “chatter-free” operation when the system is free of abrasives and foreign matter. Continuous filtration of the liquid used is strongly recommended.


Great Lakes Pump and Supply
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Great Lakes Pump & Supply Co.
1075 Naughton
Troy, MI 48083
Phone: 248-528-9100

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