PRIER Products, Inc.
4515 E 139th St.
Grandview, MO 64030
800-362-9055 Fax: 800-362-1463
www.PRIER.com
Installation, Operation & Maintenance Instructions for the
PRIER P-164/264 Diamond Series Quarter Turn Wall Hydrant
*Please leave this sheet for the property homeowner*
Thank you for purchasing the PRIER P-164/264 Diamond Series Quarter Turn Wall Hydrant, the finest quality quarter turn
wall hydrant available. Your P-164/264 will provide you years of dependable service with little or no maintenance.
Installation:
Installation procedures may vary slightly depending on the seat option purchased and the installation inlet options. PRIER
freezeless wall hydrants are available with the following inlet options:
1. Determine the location for the installation of the hydrant. The valve must be installed into a heated area of the struc-
ture that will not drop below freezing. Ensure there is adequate work room in the interior of the structure for securing
the hydrant to the plumbing piping. Bore the whole size listed above through the wall in the desired position for the
installation.
2.
All freezeless wall hydrants require a slight downward pitch to aid the draining process of the hydrant once the prod
-
uct is turned to the “off” position. PRIER has machined an appropriate pitch into the casted backflange to assist and
ensure that a proper drainage pitch results after installation.
3. Position the spout of the hydrant in the downward position. From the interior of the structure, utilize the spout aligning
mark on the seat. When the mark is pointed down, the spout is oriented in the proper position on the outside of the
structure.
4. If you are planning to solder the connection (D, S or F style seats), be certain the hydrant is in the fully open position
to prevent seat damage from the heat.
5. Connect the water supply piping to the freezeless wall hydrant as desired. With a closed-end hose on the valve creat-
ing back pressure, test the installation for leakage.
6. After the water supply connection is made, secure the hydrant to the structure using appropriate screws through the
two mounting holes on the casted back flange.
Operation:
Operation of the P-164/264 Diamond Series Quarter Turn Wall Hydrant is a simple process. Water flows through the
hydrant after turning the handle (or operating key for the P-264 style) counter-clockwise to the “on” position. Turn off the
hydrant by turning the handle clockwise to the “off” position.
The hydrant will drain for a few moments. If the dripping persists after a few moments, tighten the handle slightly until the
dripping stops. Be careful not to overtighten the hydrant.
The P-164/264 incorporates an integral atmospheric anti-siphon vacuum breaker that, in the rare occurrence of a back
siphonage, opens to the atmosphere preventing contamination of the water supply.
As well as an atmospheric vacuum breaker, the P-164/264 incorporates a backflow preventer that operates as a check
valve in the rare case that water is forced backwards into the valve. The backflow preventer has been tested to 125 PSI
pressure.
*ALWAYS REMOVE HOSE DURING FREEZING TEMPERATURES*
*INTENDED FOR IRRIGATION USE AND OUTDOOR WATERING*
D
1/2” MIP x 1/2” SWT
Bore 1” Hole
S
1/2” SWT x 3/4” Push-On
Bore 1” Hole
X
1/2” Crimp PEX
Bore 1” Hole
W
1/2” Wirsbo
®
PEX
Bore 1” Hole
C
1/2” CPVC
Bore 1” Hole
T
3/4” MIP x 1/2” FIP
Bore 1 1/8” Hole
F
3/4” MIP x 3/4” SWT
Bore 1 1/8” Hole
FX
3/4” Crimp PEX
Bore 1 1/8” Hole
FW
3/4” Wirsbo
®
PEX
Bore 1 1/8” Hole
Maintenance:
The PRIER P-164/264 Diamond Series Quarter Turn Wall Hydrant leaves the factory fully air tested and operational. It is
treated with an FDA approved lubrication. The hydrant requires no scheduled maintenance to provide long life.