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Knight Hawk Supply
Your One-Stop Hydraulic Source
Fulflo FV2000 Series Valve
Hydraulic Valves
Your One-Stop Source for Fulflo Valves
Fulflo SVB Series Valve
Fulflo SVB Series Valves
APPLICATION
The Fulflo “SVB” Series, Underwriter Listed, range in size from 1/4” through 1” and operate efficiently with liquids of any viscosity at pressures from 7 through 500 P.S.I. The “SVB” valves are of brass construction with threaded connections. Primarily designed for use with fuel oils on oil burner service, the “SVB” valves may be used wherever Underwriter Listed valves are required. Each valve is pre-set to the specified pressure and is equipped with a limiting device to prevent over-adjustment.
INSTALLATION
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 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.
Fulflo Valves
ASSEMBLY NUMBER IDENTIFICATION CHART
Fulflo Assembly Number Identification
EXAMPLE:
S
V
B
-55
ZS
O
Underwriter's Listed
Series
Brass
1"
Spring
Hardened Steel Piston, Deep Groove
HOW TO ORDER:

Specify:
1. Valve Model Number
2. Spring Letter
3. Piston Number
4. Pressure Setting

NOTE: A definite pressure setting is required due to Underwriter restrictions. A limiting device is furnished to prevent over-adjustment more than 25% above set pressure.
SETTING VALVES:
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, 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 valve adjusting screw until valve slightly bleeds at the set bypass pressure and lock adjusting screw. If 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 valve adjusted for cracking pressure as above, continue closing bypass until the required flow registers on the flow meter and observe pressure. Readjust pressure, if necessary, to obtain desired pressure at desired flow.
Fulflo
UNDERWRITER VALVE PRESSURE RANGE CHART
Fulflo SVB Valve Pressure Ranges
Fulflo Valves
SVB Brass
Fulflo Valves Call, Fax or Email Knight Hawk Supply for more information on
Fulflo Valves
Fulflo Valves
Knight Hawk Supply
89 Zips Road
Hawk Point, MO 63349
(636) 338-4031 Fax (636) 338-4434
Toll Free (877) 739-3200
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