Inlet
Outlet
1st Check Module
Check Covers
2nd Check Module
Series LFL7/L7
1. Remove the Series 7 from the line (union nut and adapter remain in
the line).
2. Remove the two check modules by pressing firmly from the outlet
end (end with wrench pads). O-ring seals will be removed with the
removal of modules from the body.
CAUTION:
To prevent damage to O-ring seals, do not attempt to pry the O-ring
seal free before removing check modules.
NOTE:
Complete check
module assemblies are available as replacement parts. It is recom-
mended that if check modules are fouled, that the entire check module
be replaced.
3. Inspect body bore and clean surfaces of any foreign material.
4. Using silicone grease, apply small amount to each exterior surface
of the O-ring seals. If O-ring is to be replaced, lubricate as above. A
light application of silicone grease to inlet of body bore is beneficial.
Do not lubricate seat of seat disc.
NOTE:
Only FDA approved silicone grease should be used and is
furnished with each Watts Models LF7/7, LF07S/07S and LF7R dual
check repair kit.
5. Reinsert the check modules and O-rings into body in direction of flow.
NOTE 1:
For the 1" and 1
1
/
4
" 07S the spacer slots must be aligned
with the ribs of the first check module before inserting
NOTE 2:
1st and 2nd check modules are identical and interchangeable.
Do not overtighten union nut.
Servicing Valves LF7/L7
1. Shut off water at street side of meter.
2. Remove covers and remove Disc Assembly.
3. Inspect rubber disc for dirt or debris.
4. Clean and/or replace as needed.
5. Inspect machined seat area for nicks and mineral build up clean
with emery cloth.
6. Reassemble the check assembly in the reverse order. (1st and 2nd
check modules are identical and interchangeable)
Series LF7/7
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.
1st Check Module
2nd Check Module
O-ring Module seal
Individual O-ring Check Seals
O-ring
Tailpiece
1st Check
Module
2nd Check
Module
Check Module
O-rings
Body
Union Nut
Tailpiece
O-ring
Kit for Valve LFL7/L7
ORDER CODE
KIT NO.
SIzE
in. mm
0886005
RK L7 T
3
⁄
4
-
1
20 – 25
Kit for Series LF7/7, LF07S/07S, LF7C/7C, 7B
and LFCu7/Cu7
ORDER CODE
KIT NO.
SIzE
in. mm
0886015
RK 7 T
1
⁄
2
-1
1
⁄
4
7
15 – 32
1
⁄
2
- 1 Cu7
15 – 25
0886017
RK 07S T
1 - 1
1
⁄
4
07S
25 – 32
0886016
RK 7B T
3
⁄
4
7B 20
0886018
RK A7 T
5
⁄
8
-
3
⁄
4
17 – 20
0886009
RK 7/7C T
3
⁄
8
7/7C 10
0886007
LF RK 7R T
1
⁄
2
- 1
15 – 25
0886006
LF RK 07S T
1
1
⁄
2
- 2
40 – 50
Kit Includes: First and Second Check modules, O-rings and spacers if needed.
RP/IS-7 1209
EDP# 1910327
© 2012 Watts
USA:
Tel. (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada:
Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.wattscanada.ca
A Watts Water Technologies Company
Series LF7R
LEAD FREE*
LEAD
FREE*
Service, Replacement Parts and Maintenance
Series 7 Dual Check Valves
LF7/7, LF7R, LF07S/07S, LF7C/7C, 7B, and
LFCu7/Cu7
