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Servicing and maintenance, General, Check valve disassembly – FEBCO 825YA Small Footprint N-Shape Design Reduced Pressure Zone Assemblies User Manual

Page 2: Relief valve disassembly, Test procedure, Troubleshooting guide

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M A I N T E N A N C E M A N U A L

Servicing and Maintenance

General

1. Detailed maintenance manuals are available from your local FEBCO

representative.

2. Rinse all parts with clean water prior to reassembly.
3. DO NOT USE ANY PIPE DOPE, OIL, GREASE OR SOLVENT ON

ANY PARTS unless instructed to do so.

4. Do not force parts. Parts should fit together freely. Excess force may

cause damage and render the assembly inoperable.

5. Carefully inspect seals and seating surfaces for debris or damage.
6. After servicing, repressurize and test the assembly to ensure proper

operation.

Check Valve Disassembly

1. Unscrew the cover and remove the spring and disc holder assembly.

CAUTION: The covers are spring loaded.

2. Inspect/clean debris from the disc and seat area. Replace worn/damaged

parts as required.

3. Apply FDA approved grease to the cover O-ring and reassemble the

valve in the reverse order of disassembly.

Relief Valve Disassembly

1. Close the outlet shutoff valve, and then close the inlet shutoff valve.

Bleed residual pressure from the assembly by opening the #4, #3, and #

2 test cocks in this sequence.

2. Remove capscrews, diaphragm cover, diaphragm and port bushing of

relief valve and then remove the internal assembly from the body by pull-

ing straight out.

3. Inspect for debris, damage or fouling of the seat disc. Clean and/or

replace parts as required.

4. Reassemble in the reverse order of disassembly.

Test Procedure

FEBCO recommends the use of the appropriate test method presented in

the ASSE Series 5000 manual that is consistent with your local codes.

Troubleshooting Guide

PROBLEM CAUSE

SOLUTION

1. Continuous relief

a. Debris on check seating surfaces Disassemble and clean

valve discharge.

b. Debris on relief valve seat

Disassemble and clean

2. Intermittent relief

a. Inlet pressure fluctuations

Eliminate fluctuations

valve discharge.

b. Downstream pressure surges

Eliminate surges

A Watts Water Technologies Company

USA: Fresno, CA • Tel: (559) 441-5300 • Fax: (559) 441-5301 • www.FEBCOonline.com

Canada: Burlington, ON • Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.FEBCOonline.ca

IS-F-825YA/RP 1128

EDP# 980025

© 2011 FEBCO

Limited Warranty: FEBCO (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.