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Installation Guidelines

 

NOTICE

 

The Flange gasket bolts for the gate valves should be retightened dur-

ing installation as the bolts may have loosened due to storage and 

shipping.

1.   Consult local codes for specific installation requirements and restrictions 

applicable to your area.  It is recommended that system supply pressure 

be at least 20psi (133 kPa).

2.   These instructions apply to Series 860, LF860 sizes 2

1

2

" to 10" (65-

250mm) only. The valves may be installed only in the orientation/flow 

direction as shown. 

3.   The valve assembly must be installed where it is accessible for periodic 

testing and maintenance. Clearances shown in the installation views 

apply to exterior, interior and pit/vault installations and are only recom-

mendations. These minimums do not apply to removable protective 

enclosures.  Refer to local codes for actual requirements in your area.

4.   PRIOR TO INSTALLING THE VALVE INTO THE LINE, FLUSH THE 

SUPPLY LINE OF ALL FOREIGN MATERIAL. Failure to flush the supply 

line may cause the check valves to become fouled and require disas-

sembly and cleaning.

5.   DO NOT LIFT THE ASSEMBLY BY CONNECTING TO THE GATE VALVE 

HANDWHEELS OR STEMS. 

6.   After installation SLOWLY fill the assembly with water and bleed air 

from the body using the #2, # 3 and # 4 test cocks. Test the valve 

assembly to ensure correct operation.

NOTICE

 

All assemblies are tested at the factory for proper operation and leakage. 

If the valve does not pass the field test, it is most likely due to a fouled 

check valve. This is not covered by the factory warranty. The valve cover(s) 

must be removed and the check seats inspected and cleaned. Any damage 

or improper operation caused by pipeline debris or improper installation/

start-up is not included in the factory warranty. In case of a possible war-

ranty claim, contact your local supplier or FEBCO representative. DO NOT 

REMOVE THE VALVE ASSEMBLY FROM THE PIPELINE.
7.   The assembly must be protected from freezing and excessive pressure 

increases. Pressure increases can be caused by thermal expansion or 

water hammer.  These excessive pressure situations must be eliminated 

to protect the valve and system from possible damage.

NOTICE

 

The gap drain is not designed to catch the maximum discharge possible from 

the relief valve. The installation of FEBCO air gap with the drain line terminat-

ing above a floor drain will handle any normal discharge or nuisance spitting 

through the relief valve. However, floor drain size may need to be designed 

to prevent water damage caused by a catastrophic failure condition. Do not 
reduce the size of the drain line from the air gap fitting.

Typical Installation

12" Min. (300mm) 

refer to local codes

FloW

HorIZontal InstallatIon oF tHe rP serIes 860, lF860 

(shown with strainer)

HorIZontal InstallatIon oF 

tHe rP serIes 860, lF860  

(top View) 

(shown with strainer)

18" Min. (450mm) 

refer to local codes

Service 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 the assembly and test to ensure proper 

operation.

Check Valve Disassembly

1.   Close the outlet shutoff valve, 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 the cover bolts/nuts and lift the cover from the body. The springs 

are retained and the cover should be pushed away from the body approx-

imately 1⁄4 inch.

3.   Inspect/clean debris from the disc and seat ring. Replace worn or dam-

aged parts as required.

4.   Replace the cover, ensure the spring assembly is positioned in the pivot 

socket. If necessary, apply FDA approved grease to the O-ring groove in 

the body to keep the O-ring in position while installing the cover.

5.  Install the bolts and nuts and tighten.

Relief Valve Disassembly

1.   Remove the capscrews holding the cover to the relief valve body, 

and remove the cover.

2.  Remove the diaphragm and pull the internal assembly from the body. 

It may be helpful to push the internal assembly with your fingers 

through the discharge opening.

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

replace parts as required. Reassemble in the reverse order of disas-

sembly.

Test Procedure for Reduced Pressure Zone Assemblies

FEBCO recommends the use of the appropriate test method presented 

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

Troubleshooting

ENGLISH INSTRUCTIONS

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.

EDP# 980049

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

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

A Watts Water Technologies Company

IS-F-860RP/RPDA  1330  

© 2013 FEBCO

   ProBleM  

  cause                               solutIon

1.  Continuous relief  

a.  Debris on check seating surfaces    Disassemble and clean

  valve discharge 

b.  Debris on relief valve surfaces         Disassemble and clean

2.  Intermittent relief 

a.  Inlet pressure fluctuations               Eliminate fluctuations

  valve discharge 

b.  Downstream pressure surges         Eliminate surges

 3.  Low flows passing 

a.  Mainline check fouled                      Disassemble and clean

  through mainline

  valve (RPDA)

Figure 1

12" Min. (300mm) 

refer to local codes

Figure 2

6" Min. (150mm) 

refer to local codes

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