Install Instructions

Typical Installation
Using TWS Hydrant
Note:
PVB's must be installed a minimum of 12" (305mm) above
the highest point of water in the sprinkler system. (See Fig. 1)
Service and Replacement Parts
Repair Kits Series 800M4 or LF800M4
Internal parts can be removed, repaired or inspected without removing the valve from the piping.
Disassembly
1. Shut off the supply pressure and drain the valve.
2. Remove the two hood screws and the hood.
3. Place a wrench on the parallel flats of bonnet and stem
assembly. Turn counter clockwise and remove.
4. Remove the vent assembly.
5. Press down on the spring retainer and disengage it
from the retaining lugs. Then turn 90° and remove.
6. Remove the spring retainer and spring. Note that the large
diameter of the spring is down on the guide assembly.
7. Remove the check disc holder and guide assembly.
8. Disassemble the check disc holder assembly.
9. Remove seat (if required) by turning counterclockwise.
Reassembly
Reassemble in the reverse order utilizing the new parts
from the repair kit.
To
Sprinklers
Key
Drain Port
or
Blow Down
Water
Supply
Watts TWS
TWS with Watts Series 800M4
Pressure Vacuum Breaker
Watts 800M4QT
1" - 2" (25 - 50mm)
Watts 800M4QT
1
⁄2",
3
⁄4" (15 - 20mm)
RP/IS-800M4QT 1145 EDP# 1915087 © 2012 Watts
USA: Tel: [phone] • Fax: [phone] • www.watts.com
Canada: Tel: [phone] • Fax: [phone] • www.wattscanada.ca
A Watts Water Technologies Company
ORDERING CODE KIT NO. SIZE
in. mm
Total Repair Kits:
0887727 RK 800M4-T
1
⁄2,
3
⁄4 15, 20
0887728 RK 800M4-T 1 25
0887729 RK 800M4-T 1
1
⁄4 – 2 32 – 50
Kit consists of: Check Valve Repair Kit, Vent Float Repair Kit, Bonnet Assembly Repair Kit,
Seat Repair Kit.
Check Kits:
0887703 †RK 800M4 CK
1
⁄2,
3
⁄4 15, 20
0887704 †RK 800M4 CK 1 25
0887705 †RK 800M4 CK 1
1
⁄4 – 2 32 – 50
Kit consists of: Check Disc Assembly (Disc & Disc Holder). Bonnet O-ring and Check Spring.
Vent Float Kits:
0887709 RK 800M4 V
1
⁄2,
3
⁄4 15, 20
0887710 RK 800M4 V 1 25
0887711 RK 800M4 V 1
1
⁄4 – 2 32 – 50
Kit consists of: Float Vent Disc Assembly (Vent Float, Seal & Spring) and Bonnet O-ring.
FR Vent Float Kit:
0887725 RK 800M4 FRV
1
⁄2,
3
⁄4 15, 20
0887715 RK 800M4 FRV 1 25
0887716 RK 800M4 FRV 1
1
⁄4 – 2 32 – 50
Kit consists of: Float, Vent Spring and Bonnet O-ring.
LEAD
FREE
*
LEAD
FREE
*
LEAD
FREE
*
LEAD
FREE
*
ORDERING CODE KIT NO. SIZE
in. mm
Bonnet Assembly Kits:
0887700 RK 800M4 B
1
⁄2,
3
⁄4 15, 20
0887701 RK 800M4 B 1 25
0887702 RK 800M4 B 1
1
⁄4 – 2 32 – 50
Kit consists of: Bonnet, Bonnet O-ring, Vent Spring, Hood & Hood Screws.
For Retrofit of Standard and LF Models M2 & M4 to M4FR:
0887726 Retro 800M4 FR
1
⁄2,
3
⁄4 15, 20
0887718 Retro 800M4 FR 1 25
0887717 Retro 800M4 FR 1
1
⁄4 – 2 32 – 50
Kit consists of: Float, Spring, Bonnet and Bonnet O-ring.
Rubber Parts Kits:
0887706 RK 800M4 RT
1
⁄2,
3
⁄4 15, 20
0887707 RK 800M4 RT 1 25
0887708 RK 800M4 RT 1
1
⁄4 – 2 32 – 50
Kit consists of: Vent Disc, Check Disc and Bonnet O-ring.
Seat Kits:
0887712 RK 800M4 S
1
⁄2,
3
⁄4 15, 20
0887713 RK 800M4 S 1 25
0887714 RK 800M4 S 1
1
⁄4 – 2 32 – 50
Kit consists of: Seat, Seat O-ring and Bonnet O-ring.
LEAD
FREE
*
LEAD
FREE
*
LEAD
FREE
*
LEAD
FREE
*
Watts reserves the right to change or modify product design, construction, specifica-
tions, or materials without prior notice and without incurring any obligation to make
such changes and modifications on Watts products previously or subsequently sold.
Note: † Fits 800M4FR/LF800M4FR Model
Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of
original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from
labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control.
This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above
limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to
determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.
*The wetted surface of this product contacted by consumable
water contains less than one quarter of one percent (0.25%) of
lead by weight.