Installation Guide
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 C-634 Heavy Commercial Wall Hydrant
*Please leave this sheet for the property owner*
Thank you for purchasing the PRIER C-634 Heavy Commercial Wall Hydrant, the nest quality commercial
hydrant available. Your C-634 will provide you years of dependable service with little or no maintenance.
Please note: Your C-634 hydrant has drain holes under the packing nut. After shutoff, the drain holes will allow water to
drain for a few moments to prevent freezing. This is normal and according to design.
Installation:
Installation procedures may vary slightly depending on the seat option purchased and the installation inlet options. The
C-634 wall hydrant is available with the following inlet options:
N 1” MIP x 3/4” FIP
P 1” Male SWT x 3/4” Female SWT
V 3/4” ProPress Ready
Operation:
Operation of the C-634 Commercial Wall Hydrant is a simple process. Water ows through the hydrant after turning the
loose key one full turn counter-clockwise to the “on” position. The hydrant will achieve maximum ow at 2 1/2 full turns.
Turn off the hydrant by turning the loose key clockwise to the “off” position.
The hydrant will drain for a few moments. If the dripping persists after a few moments, tighten the key slightly until the
dripping stops. Be careful not to overtighten the hydrant.
The C-634 incorporates an integral atmospheric anti-siphon vacuum breaker that, in the rare occurrence of a back siphon-
age, opens to the atmosphere preventing contamination of the water supply.
As well as an atmospheric vacuum breaker, the C-634 incorporates vacuum breaker check valve in the rare case that
water is forced backwards into the valve.
*ALWAYS REMOVE HOSE DURING FREEZING TEMPERATURES*
*INTENDED FOR IRRIGATION USE AND OUTDOOR WATERING*
1. Determine the location for the installation of the hydrant. Ensure there is adequate
work room in the interior of the structure for securing the hydrant to the plumbing
piping. Bore a 1 1/8” diameter hole through the wall in the desired position for the
installation and a 1/4” hole that is 1/2” deep.
2. The PRIER C-634 is designed for installation in either the horizontal or vertical
position. If using vertical installation, it is recommended that the hydrant be installed
with the hose threads in the “up” position. Refer to the drawings below.
3. If you are planning to solder the connection, be certain the hydrant is in the fully
open position to prevent seat damage from the heat.
4. Connect the water supply piping to the hydrant as desired. With a closed-end hose
on the valve creating back pressure, test the installation for leakage.
5. After the water supply connection is made, secure the hydrant to the structure.
4515 East 139th Street
Grandview, MO 64030
(800) 362-9055
Fax (800) 362-1463
INSTALLATION:
5. Flush all foreign particles from the water line before
connecting the Freezeless Hydrant. Foreign particles
may clog the vacuum breaker/backflow preventor caus-
ing it to fail.
6. Insert the Freezeless Hydrant through the previously
bored hole and secure the hydrant to the inside of the
wall with the provided wall clamping ring.
7. Secure the Freezeless Hydrant to the supply piping.
Test the installation for leakage.
1. De
termine the location for installation of the Freeze-
less Hydrant. Be sure there is adequate work area on
the interior of the structure for securing the Freezeless
Hydrant to the waterline.
3. Using the template provided on the box, bore a 1
3
/
8
”
diameter hole through the wall in the desired position,
and a
1
/
4
” hole that is
1
/
2
” deep.
2. The Prier C-634 is designed for installation in either
horizontal or vertical position. If using vertical installa-
tion, it is recommended that the hydrant be in
stalled with
the hose threads in the “up” position. Refer to drawings
to the right for correct installations.
4. If planning to solder the Freezeless Hydrant to the
supply piping, remove the operating stem before apply-
ing heat to the valve. Heating the valve will damage the
sealing surfaces on the stem of the Freezeless Hydrant
OPERATION:
The operation of a Prier C-634 Freezeless Wall
Hydrant is simple. The Freezeless Hydrant will
begin to flow at about 1 full turn of the key and will
achieve maxi
mum flow at 2
1
/
2
full turns.
After shutoff, the hydrant will drain water from be-
hind the packing nut. If the water drains for more
than 1 minute, the stopper may need to be replaced.
Do not overturn when opening or closing the hydrant!
MAINTENANCE:
The Prier C-634 Freezeless Wall Hydrant requires no
scheduled maintenance for long wear life. If the op-
erating stem is removed, replacement of the O-Ring
on the worm sleeve and worm drive is recommended.
Recommended
Acceptable
Not Recommended
Acceptable
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS FOR
PRIER C-634 HEAVY COMMERCIAL WALL HYDRANTS
PARTS:
7 13
12
11
3
4
10
8
1
5
6
9
2
ID Part No. Description
1
300-6003 Valve Stem Cap-Brass
2
300-6004 Hose Piece-Brass
3
336-0001 O-Ring for Worm Sleeve Buna
4
336-6001 O-Ring for Worm Drive Buna
5
337-6001 Stop Check-Acetal
6 346-6001 VB Check Washer-Silicone
7
399-6001 Stopper-Brass & EPDM
8
C-108KT-808 Operating Key on Lanyard
9
C-634KT-806 Vacuum Breaker Check Valve Assy
10
C-634KT-809 Worm Drive Assembly-Brass
11
C-634KT-808 Worm Sleeve Assembly-Brass
12
C-634WCR W
all Clamp Ring-Iron
13
231-06CC Stem for Close Coupled C-634
231-0604 Stem for 4" C-634
231-0606 Stem for 6" C-634
231-0608 Stem for 8" C-634
231-0610 Stem for 10" C-634
231-0612 Stem for 12" C-634
231-0614 Stem for 14" C-634
231-0618 Stem for 18" C-634
231-0624 Stem for 24" C-634
4515 East 139th Street
Grandview, MO 64030
(800) 362-9055
Fax (800) 362-1463
INSTALLATION:
5. Flush all foreign particles from the water line before
connecting the Freezeless Hydrant. Foreign particles
may clog the vacuum breaker/backflow preventor caus-
ing it to fail.
6. Insert the Freezeless Hydrant through the previously
bored hole and secure the hydrant to the inside of the
wall with the provided wall clamping ring.
7. Secure the Freezeless Hydrant to the supply piping.
Test the installation for leakage.
1. De
termine the location for installation of the Freeze-
less Hydrant. Be sure there is adequate work area on
the interior of the structure for securing the Freezeless
Hydrant to the waterline.
3. Using the template provided on the box, bore a 1
3
/
8
”
diameter hole through the wall in the desired position,
and a
1
/
4
” hole that is
1
/
2
” deep.
2. The Prier C-634 is designed for installation in either
horizontal or vertical position. If using vertical installa-
tion, it is recommended that the hydrant be in
stalled with
the hose threads in the “up” position. Refer to drawings
to the right for correct installations.
4. If planning to solder the Freezeless Hydrant to the
supply piping, remove the operating stem before apply-
ing heat to the valve. Heating the valve will damage the
sealing surfaces on the stem of the Freezeless Hydrant
OPERATION:
The operation of a Prier C-634 Freezeless Wall
Hydrant is simple. The Freezeless Hydrant will
begin to flow at about 1 full turn of the key and will
achieve maxi
mum flow at 2
1
/
2
full turns.
After shutoff, the hydrant will drain water from be-
hind the packing nut. If the water drains for more
than 1 minute, the stopper may need to be replaced.
Do not overturn when opening or closing the hydrant!
MAINTENANCE:
The Prier C-634 Freezeless Wall Hydrant requires no
scheduled maintenance for long wear life. If the op-
erating stem is removed, replacement of the O-Ring
on the worm sleeve and worm drive is recommended.
Recommended
Acceptable
Not Recommended
Acceptable
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS FOR
PRIER C-634 HEAVY COMMERCIAL WALL HYDRANTS
PARTS:
7 13
12
11
3
4
10
8
1
5
6
9
2
ID Part No. Description
1
300-6003 Valve Stem Cap-Brass
2
300-6004 Hose Piece-Brass
3
336-0001 O-Ring for Worm Sleeve Buna
4
336-6001 O-Ring for Worm Drive Buna
5
337-6001 Stop Check-Acetal
6 346-6001 VB Check Washer-Silicone
7
399-6001 Stopper-Brass & EPDM
8
C-108KT-808 Operating Key on Lanyard
9
C-634KT-806 Vacuum Breaker Check Valve Assy
10
C-634KT-809 Worm Drive Assembly-Brass
11
C-634KT-808 Worm Sleeve Assembly-Brass
12
C-634WCR W
all Clamp Ring-Iron
13
231-06CC Stem for Close Coupled C-634
231-0604 Stem for 4" C-634
231-0606 Stem for 6" C-634
231-0608 Stem for 8" C-634
231-0610 Stem for 10" C-634
231-0612 Stem for 12" C-634
231-0614 Stem for 14" C-634
231-0618 Stem for 18" C-634
231-0624 Stem for 24" C-634
4515 East 139th Street
Grandview, MO 64030
(800) 362-9055
Fax (800) 362-1463
INSTALLATION:
5. Flush all foreign particles from the water line before
connecting the Freezeless Hydrant. Foreign particles
may clog the vacuum breaker/backflow preventor caus-
ing it to fail.
6. Insert the Freezeless Hydrant through the previously
bored hole and secure the hydrant to the inside of the
wall with the provided wall clamping ring.
7. Secure the Freezeless Hydrant to the supply piping.
Test the installation for leakage.
1. De
termine the location for installation of the Freeze-
less Hydrant. Be sure there is adequate work area on
the interior of the structure for securing the Freezeless
Hydrant to the waterline.
3. Using the template provided on the box, bore a 1
3
/
8
”
diameter hole through the wall in the desired position,
and a
1
/
4
” hole that is
1
/
2
” deep.
2. The Prier C-634 is designed for installation in either
horizontal or vertical position. If using vertical installa-
tion, it is recommended that the hydrant be in
stalled with
the hose threads in the “up” position. Refer to drawings
to the right for correct installations.
4. If planning to solder the Freezeless Hydrant to the
supply piping, remove the operating stem before apply-
ing heat to the valve. Heating the valve will damage the
sealing surfaces on the stem of the Freezeless Hydrant
OPERATION:
The operation of a Prier C-634 Freezeless Wall
Hydrant is simple. The Freezeless Hydrant will
begin to flow at about 1 full turn of the key and will
achieve maxi
mum flow at 2
1
/
2
full turns.
After shutoff, the hydrant will drain water from be-
hind the packing nut. If the water drains for more
than 1 minute, the stopper may need to be replaced.
Do not overturn when opening or closing the hydrant!
MAINTENANCE:
The Prier C-634 Freezeless Wall Hydrant requires no
scheduled maintenance for long wear life. If the op-
erating stem is removed, replacement of the O-Ring
on the worm sleeve and worm drive is recommended.
Recommended
Acceptable
Not Recommended
Acceptable
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS FOR
PRIER C-634 HEAVY COMMERCIAL WALL HYDRANTS
PARTS:
7 13
12
11
3
4
10
8
1
5
6
9
2
ID Part No. Description
1
300-6003 Valve Stem Cap-Brass
2
300-6004 Hose Piece-Brass
3
336-0001 O-Ring for Worm Sleeve Buna
4
336-6001 O-Ring for Worm Drive Buna
5
337-6001 Stop Check-Acetal
6 346-6001 VB Check Washer-Silicone
7
399-6001 Stopper-Brass & EPDM
8
C-108KT-808 Operating Key on Lanyard
9
C-634KT-806 Vacuum Breaker Check Valve Assy
10
C-634KT-809 Worm Drive Assembly-Brass
11
C-634KT-808 Worm Sleeve Assembly-Brass
12
C-634WCR W
all Clamp Ring-Iron
13
231-06CC Stem for Close Coupled C-634
231-0604 Stem for 4" C-634
231-0606 Stem for 6" C-634
231-0608 Stem for 8" C-634
231-0610 Stem for 10" C-634
231-0612 Stem for 12" C-634
231-0614 Stem for 14" C-634
231-0618 Stem for 18" C-634
231-0624 Stem for 24" C-634
4515 East 139th Street
Grandview, MO 64030
(800) 362-9055
Fax (800) 362-1463
INSTALLATION:
5. Flush all foreign particles from the water line before
connecting the Freezeless Hydrant. Foreign particles
may clog the vacuum breaker/backflow preventor caus-
ing it to fail.
6. Insert the Freezeless Hydrant through the previously
bored hole and secure the hydrant to the inside of the
wall with the provided wall clamping ring.
7. Secure the Freezeless Hydrant to the supply piping.
Test the installation for leakage.
1. De
termine the location for installation of the Freeze-
less Hydrant. Be sure there is adequate work area on
the interior of the structure for securing the Freezeless
Hydrant to the waterline.
3. Using the template provided on the box, bore a 1
3
/
8
”
diameter hole through the wall in the desired position,
and a
1
/
4
” hole that is
1
/
2
” deep.
2. The Prier C-634 is designed for installation in either
horizontal or vertical position. If using vertical installa-
tion, it is recommended that the hydrant be in
stalled with
the hose threads in the “up” position. Refer to drawings
to the right for correct installations.
4. If planning to solder the Freezeless Hydrant to the
supply piping, remove the operating stem before apply-
ing heat to the valve. Heating the valve will damage the
sealing surfaces on the stem of the Freezeless Hydrant
OPERATION:
The operation of a Prier C-634 Freezeless Wall
Hydrant is simple. The Freezeless Hydrant will
begin to flow at about 1 full turn of the key and will
achieve maxi
mum flow at 2
1
/
2
full turns.
After shutoff, the hydrant will drain water from be-
hind the packing nut. If the water drains for more
than 1 minute, the stopper may need to be replaced.
Do not overturn when opening or closing the hydrant!
MAINTENANCE:
The Prier C-634 Freezeless Wall Hydrant requires no
scheduled maintenance for long wear life. If the op-
erating stem is removed, replacement of the O-Ring
on the worm sleeve and worm drive is recommended.
Recommended
Acceptable
Not Recommended
Acceptable
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS FOR
PRIER C-634 HEAVY COMMERCIAL WALL HYDRANTS
PARTS:
7 13
12
11
3
4
10
8
1
5
6
9
2
ID Part No. Description
1
300-6003 Valve Stem Cap-Brass
2
300-6004 Hose Piece-Brass
3
336-0001 O-Ring for Worm Sleeve Buna
4
336-6001 O-Ring for Worm Drive Buna
5
337-6001 Stop Check-Acetal
6 346-6001 VB Check Washer-Silicone
7
399-6001 Stopper-Brass & EPDM
8
C-108KT-808 Operating Key on Lanyard
9
C-634KT-806 Vacuum Breaker Check Valve Assy
10
C-634KT-809 Worm Drive Assembly-Brass
11
C-634KT-808 Worm Sleeve Assembly-Brass
12
C-634WCR W
all Clamp Ring-Iron
13
231-06CC Stem for Close Coupled C-634
231-0604 Stem for 4" C-634
231-0606 Stem for 6" C-634
231-0608 Stem for 8" C-634
231-0610 Stem for 10" C-634
231-0612 Stem for 12" C-634
231-0614 Stem for 14" C-634
231-0618 Stem for 18" C-634
231-0624 Stem for 24" C-634
Maintenance:
The C-634 Heavy Commercial 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. If the stem is removed, the
bypass O-Ring needs to be replaced and lubricated with an FDA approved lubricant to avoid tearing.
*P and V inlets only available with CC length