ZURN 1260XL-B Water Hammer Arrester Instruction Manual
- June 13, 2024
- ZURN
Table of Contents
ZURN 1260XL-B Water Hammer Arrester
Product Information
The Model 1260XL is a lead-free water hammer arrester available in sizes A through F. This product has a weighted average lead content of less than 0.25% for wetted surfaces.
Installation and Maintenance Instructions
- Flush lines thoroughly prior to installation of Model\ 1260XL.
- Determine the size of the Water Hammer Arrester based on fixture units and refer to the charts for proper devices.
- Locate the Model 1260XL as close to the source of shock as possible, with one arrester on the hot water line and one on the cold water line. Use Teflon tape to seal pipe threads.
- To ensure proper performance, install the Model 1260XL in a location that allows for an unobstructed path to the arrester.
- Use an appropriate-sized wrench to thread the Model 1260XL into the determined location, focusing on the hex only.
Example: For a fixture with 26 fixture units, select the 1260XL-B arrester (refer to Fig. 1).
Long Runs of Piping to Remote Equipment
When using long runs of piping to serve remote equipment, place the Water Hammer Arrester as close as possible to the point of quick closure (see Fig. 4).
The size and quantity of Water Hammer Arrester to be installed in branch lines is shown in Table III. Ideally, the flow pressure in branch lines serving fixtures should not exceed 55 PSIG. Pressure reducing valves should be installed to maintain proper pressure. When flow pressures of 65 to 85 PSIG are used, select the next larger size Water Hammer Arrester (see Table III).
Sizing and Selection
- Determine the number of fixture units from Table II.
- Determine the shock arrester size from Table I.
- Match the arrester to the size and length of the pipe run from Table III.
For multi-fixture branch lines of 20 feet or less, place the Water Hammer Arrester at the end of the branch line between the last two fixtures served (see Fig. 2). Select the required model using fixture unit sizing.
INSTALLATION
- Flush lines thoroughly prior to installation of Model 1260XL.
- Determine the size of the Water Hammer Arrester based on fixture units then refer to charts for proper devices.
- The Model 1260XL should be located as close to the source of shock as possible; one each on the hot and cold water lines. Use only Teflon tape to seal pipe threads.
- To insure proper performance, the Model 1260XL should be installed so that there is an unobstructed path to the arrester.
- Threading the Model 1260XL into the determined location should be done with an appropriate-sized wrench on the hex only.
The fixture unit values shown in Table II represent the standard ratings used by engineers to size water distribution systems and are also used to size water hammer arresters. Match total fixture units to correct model of water hammer arresters required from Table I. All sizing data in this brochure are based on flow velocities of 10 F.P.S. or less. The sizing method was designed with a maximum velocity of 10 F.P.S. to offer assurance that the Water Hammer Arrester is capable of handling shock of maximum intensity that may be encountered.
LONG RUNS OF PIPING TO REMOTE EQUIPMENT
When long runs of piping are employed to serve a remote item of equip-ment,
the Water Hammer Arrester should be located as close as possible to the point
of quick closure (see Fig. 4).
The size and quantity of Water Hammer Arrester to be installed in branch lines
is shown in Table III. Ideally, the flow pressure in branch lines serving
fixtures should never exceed 55 PSIG. Pressure reducing valves should be
installed to maintain proper pressure. When, however, flow pressures of 65 to
85 PSIG are used, the next larger size Water Hammer Arrester should be
selected (see Table III).
FOR FLOW PRESSURES UP 85 PSIG
LENGTH
OF PIPE
| Nominal Pipe Diameter
1/2″| 3/4″| 1″| 1 1/4″| 1 1/2″| 2″
*| | *| *| | | *| | *| *| |
25′| A| B| A| B| B| C| C| D| D| E| E| F
50′| A| B| B| C| C| D| D| E| E| F| F| CF
75′| B| C| C| D| D| E| AE| F| F| CF| EF| FF
100′| C| D| D| E| E| F| F| CF| CF| EF| FF| EFF
125′| C| D| D| E| E| CF| AF| DF| EF| FF| EFF| BFFF
150′| D| E| E| F| F| CF| DF| FF| FF| DFF| FFF| FFFF
- Flow Pressure up to 65 psig
- Flow Pressure over 65 psig and up to 85 psig
Installation Maintenance Instructions
SIZING AND SELECTION
- Determine the number of fixture units from Table Il.
- Determine shock arrester size from Table I.
- Finally, match the arrester to the size and length of the pipe run from Table all.
| MODEL 1260XL (SIZES) | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| FIXTURE UNITS | 1 TO 11 | 12 TO 32 | 22 TO 60 | 61 TO 113 | 114 TO154 | 155 TO 330 |
TABLE II FIXTURE UNITS SIZING INFORMATION
FIXTURE
| TYPES OF SUPPLY CONTROL| FIXTURE-UNITS
---|---|---
PUBLIC| PRIVATE
Total| C.W.| H.W.| Total| C.W.| H.W.
Water Closet| Flush Valve| 8| 8| N/A| 5| 5| N/A
Water Closet| Flush Tank| 5| 5| N/A| 3| 2 1/2| N/A
Pedestal Urinal| Flush Valve| 4| 4| N/A| N/A| N/A| N/A
Stall or Wall Urinal| Flush Valve| 4| 4| N/A| N/A| N/A| N/A
Stall or Wall Urinal| Flush Tank| 3| 3| N/A| N/A| N/A| N/A
Lavatory| Faucet| 2| 1 1/2| 1 1/2| 1| 1| 1
Bathtub| Faucet| 4| 2| 3| 2| 1 1/2| 1 1/2
Shower Head| Mixing Valve| 4| 2| 3| 2| 1| 2
Bathroom Group| Flush Valve Closet| N/A| N/A| N/A| 8| 8| 3
Bathroom Group| Flush Tank Closet| N/A| N/A| N/A| 6| 6| 3
Separate Shower| Mixing Valve| N/A| N/A| N/A| 2| 1| 2
Service Sink| Faucet| 3| 3| 3| N/A| N/A| N/A
Laundry Tubs (1-3)| Faucet| N/A| N/A| N/A| 3| 3| 3
Combination Fixture| Faucet| N/A| N/A| N/A| 3| 3| 3
MULTI-FIXTURE BRANCH LINES
-
Rule 1 – Branch lines of 20 feet or less.
Water Hammer Arrester should be placed at the end of the branch line between the last two fixtures served (see Fig. 2). Select the required model using fixture unit sizing. -
Rule 2 – Branch lines exceeding 20 feet.
An additional Water Hammer Arrester should be placed as shown (see Fig. 3). Select required models using fixture unit sizing. The sum of the fixture unit ratings of units X and Y shall be equal to or greater than the demand of the branches.
WARRANTY
WARRANTY : ZURN WILKINS Valves are guaranteed against defects of material or workmanship when used for the services recommended. If in any recommended service, a defect develops due to material or workmanship, and the device is returned, freight prepaid, to ZURN WILKINS within 12 months from date of purchase, it will be repaired or replaced free of charge. ZURN WILKINS’ liability shall be limited to our agreement to repair or replace the valve only.
WARNING : Cancer and Reproductive Harm – www.P65Warnings.ca.gov
CONTACT
- Address: 1747 Commerce Way, Paso Robles, CA 93446
- Phone:855-663-9876
- Fax:805-238-5766
- www.zurn.com