Febco 860 manual

MAINTENANCE MANUAL: MODELS , LF, U LFU 1/ 2"- 2" (15 – 50mm) The FEBCO Series Reduced Pressure Zone Backflow Preventer Assembly consists of two independently operating, spring loaded check valves with a pressure differential relief valve located between the . FEBCO product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact FEBCO Technical Service. FEBCO reserves the right to change or modify product design, construction, specifications, or materials with-. FEBCO Model / U / / U (1/2" - 2") Page 7 1. Inspect the check module o-ring (item ) for damage and replace if necessary. To ease assem-bly, apply a thin coating of FEBCO factory sup-plied petroleum jelly (food grade) to the o-ring (item ) prior to installing in body. CAUTION: Excess lubricant may cause foreign debris to.

The checks are accessed from a single cover on the top. The check modules are made of glass filled noryl. The relief valve utilizes an internal relief valve sensing line. The model U incorporates a union end ball valve on the The in sizes 1/2"-2" utilizes an N shape piping on the end of the model FEBCO recommends the use of the appropriate test method presented in the ASSE Series manual that is consistent with your local codes. Troubleshooting PROBLEM CAUSE SOLUTION 1. Continuous relief a. Debris on check Disassemble and clean valve discharge seating surface b. Debris on relief valve Disassemble and clean seating surfaces 2. dance with the FEBCO maintenance manual. www.doorway.ruNTAL INSTALLATION , LF, U LFU Inspect/clean seat surfaces, seals and diaphragm. Replace worn or damaged parts as required. 4. Reassemble the relief valve in the reverse order of disassembly. Test Procedures FEBCO recommends the use of the appropriate test method presented in the ASSE.

FEBCO: / Complete Rubber Kit 1/2 - 3/4 Febco reduced pressure zone assembly and reduce pressure detector assembly, series and It is recommended that system supply pressure be at least 20 psi. These instructions apply to models ; and U; sizes 1/2" - 2" only. The valves may be. Size and Dimensions · Specification Sheets · Warranty · Warranty Downloads · Brochures · Specification, Manuals Installation · Warranty · Spare parts.