General Information; Parts Identification; Specifications; Corrosion - Task Force Tips OASIS HYDRANT ASSIST VALVE Instructions For Safe Operation And Maintenance

CAUTION
CAUTION

3.0 GENERAL INFORMATION

TFT's Oasis Hydrant Assist Valve is a versatile valve that can be used as a hydrant booster, a gated wye, or for inline pumping
during relay operations. In hydrant boosting operation, the valve is fi rst connected to the hydrant and to the intake supply line on
the fi rst pumper. Inlet and outlet supply lines on a boost pumper are then connected to the valve to draw water directly from the
hydrant connection and increase pressure/fl ow to the fi rst pumper. Inline pumping is achieved in a similar manner. A clapper valve
with position indicator provides uninterrupted water fl ow to the fi re when transitioning to boost mode, and in the event of boost
pump failure. Two unique valve position indicators tell the operator if the ball and clapper valves are open, closed, or somewhere in
between. Designed for use with 3.5", 4", 4.5" or 5" (89, 100, 115 or 125 mm) hose. Stainless steel half ball valve provides corrosion
protection. Maximum operating pressure is 250 psi (17 bar). Meets 900 psi (62 bar) hydrostatic strength test. The aluminum casting
is hardcoat anodized inside and out, and TFT powder coat fi nished on the outside.

3.1 PARTS IDENTIFICATION

PRESSURE GAGE
SIDE B
(TO FIRE)
SIDE C2
(FROM RELAY PUMP)

3.2 SPECIFICATIONS

Main waterway size (at valve seat): 3.65" (93mm)
Oasis Hydrant Assist Valve meets NFPA 1965 slow close requirement.
Maximum Operating Pressure: 250 psi (17 bar)
Hydrostatic Proof Test Pressure: 900 psi (62 bar)
Temperature Rating*: -25°F to 135°F (-32°C to 57°C)
*For temperatures below 32°F (0°C), valves must be drained after use to avoid damage.
See section 2.0 SAFTEY.

3.3 CORROSION

Hose couplings are attached using polymer bearing rings which provide electrical insulation to help prevent galvanic corrosion. The
parts are hard anodized inside and out, and powder coated on the outside to help prevent corrosion. The effects of corrosion can
be minimized by good maintenance practice. See section 6.0 MAINTENANCE.

3.4 USE WITH SALT WATER

Use with salt water is permissible provided valve is thoroughly cleaned with fresh water after each use. The service life of the valve
may be shortened due to the effects of corrosion and is not covered under warranty.
©Copyright Task Force Tips, Inc. 2010
Maximum operating pressure 250 psi (17 bar). Do not exceed 250 psi (17 bar) on either side
of the valve.
Valve must be properly connected. Mismatched or damaged connectors may cause leaking or
uncoupling under pressure and could cause injury.
VALVE POSITION
INDICATOR
PORTS
CLAPPER VALVE
POSITION INDICATOR
CRANK
SERIAL #
MOUNTING FEET
3
SIDE C1
(TO RELAY PUMP INLET)
SIDE A
(HYDRANT)
LIA-420 July 12, 2010 Rev00