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Jafar 1350 Operation And Maintenance Manual

Reduced pressure zone antipollution (anticontamination) check valves
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REDUCED PRESSURE ZONE ANTIPOLLUTION
(ANTICONTAMINATION) CHECK VALVES
Approved for use by
Failure to comply with the guidelines and instructions in this Operation and
Maintenance Manual releases the manufacturer from all obligations, liability and guarantee.
Due to continuous business development, we reserve the right to introduce
modifications and design changes to the presented product.
Operation and maintenance
manual for
1350
President of Factory, JAFAR S.A.
OPERATION AND MAINTENANCE MANUAL
P/N
01-2016

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Summary of Contents for Jafar 1350

  • Page 1 (ANTICONTAMINATION) CHECK VALVES 1350 Approved for use by President of Factory, JAFAR S.A. Failure to comply with the guidelines and instructions in this Operation and Maintenance Manual releases the manufacturer from all obligations, liability and guarantee. Due to continuous business development, we reserve the right to introduce modifications and design changes to the presented product.

  • Page 2: Table Of Contents

    CONTENTS 1 TECHNICAL DESCRIPTION ..........................3 1.1 PRODUCT DESIGNATION AND IDENTIFICATION ................3 1.2 USE ................................3 1.3 TECHNICAL SPECIFICATION ........................3 2 DESIGN ................................4 2.1 DESCRIPTION OF THE VALVE DESIGN ....................4 2.2 MATERIALS ..............................6 2.3 DIMENSIONS .............................. 7 2.4 REFERENCE STANDARDS ........................

  • Page 3: Technical Description

    Type BA reduced pressure zone antipollution (anticontamination) check valves. 1.2 USE The P/N 1350 type BA low-pressure antipollution (anticontamination) check valves are intended for protecting building water supply systems from contamination backflow within the pressure range from 0.05 MPa to 1.6 MPa and temperatures up to +70ºC.

  • Page 4: Design

    2 DESIGN 2.1 DESCRIPTION OF THE VALVE DESIGN The Type BA antipollution check valves supplied by F.A. JAFAR S.A. are flanged valves. The antipollution check valve is designed with a cast iron tubular body, a valve cover and two poppet valve units, which form the valve closing components, and a membrane drain valve.
  • Page 5 OPERATION AND MAINTENANCE MANUAL 01-2016...

  • Page 6: Materials

    2.2 MATERIALS The table below lists the structural materials of the antipollution poppet valves. Item Part designation Material Reference standard Body EN-GJS-400-15 PN-EN 1563: 2012 Cover EN-GJS-400-15 PN-EN-1563: 2012 Outlet valve guide CuZn39Pb1Al-B PN-EN 1982: 2010 Drain valve spindle CuZn39Pb1Al-B PN-EN 1982: 2010 Drain valve seat X5CrNi18-10...

  • Page 7: Dimensions

    2.3 DIMENSIONS Weight PN16 (PN10) PN16 (PN10) PN16 (PN10) [mm] [kg] 30.0 100* 150* 200* 12(8) 250* 355 (350) 28 (23) OPERATION AND MAINTENANCE MANUAL 01-2016...

  • Page 8: Reference Standards

    - maximum operating temperature, acc. to PN-89/H-02650. 2.6 PRODUCTION AND ACCEPTANCE The Type BA P/N 1350 antipollution valves are manufactured and accepted in accordance with: PN-EN 1074-3:2002 (Valves for water supply. Fitness for purpose requirements and appropriate verification tests. Check valves) and PN-EN 12266-1:2007 (Industrial valves. Testing of metallic valves). All valves are leak tested (100%).

  • Page 9: Markings

    2.7 MARKINGS The valve marking meets the following standards: PN-EN 19: 2005, PN-EN-1074-1: 2002. The antipollution valve bodies feature markings on the front and back walls of the body. The marking contains the following data: - valve type (defined by the product reference standard number) - nominal diameter - nominal pressure - body material type...

  • Page 10: Assembly And Installation

    4 ASSEMBLY AND INSTALLATION 4.1 ASSEMBLY GUIDELINES The Type BA P/N cast-iron flanged antipollution check valves can be installed in overground pipelines in horizontal orientation as shown in the following figure. The flanged valves are designed for installation between flanged pipe connections of a matching size.

  • Page 11: Operation

    The assembly method for the anticontamination valve is shown in the following figure: 4.3 OPERATION The antipollution check valves shall be operated according to the requirements for check valves, in the orientation shown in the recommended installation orientation diagram. It is recommended to periodically purge the valve with fresh water (once a year) to assure full performance.

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