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Jafar 2901 Operation And Maintenance Manual

Flange-to-flange gate valves with soft seals and pneumatic actuators
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AND PNEUMATIC ACTUATORS
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 warranty.
Due to the continuous development of the company, we reserve the right to
modifications and design changes in the product presented herein.
Operation
and Maintenance Manual
FLANGE-TO-FLANGE
GATE VALVES
WITH SOFT SEALS
P/N
2901
2903
President of Factory, JAFAR S.A.
OPERATION AND MAINTENANCE MANUAL
09-2015

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Summary of Contents for Jafar 2901

  • Page 1 2901 2903 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 warranty. Due to the continuous development of the company, we reserve the right to modifications and design changes in the product presented herein.

  • Page 2: Table Of Contents

    CONTENTS 1 TECHNICAL DESCRIPTION ..........................3 1.1 PRODUCT DESIGNATION AND IDENTIFICATION ................3 1.2 USE ................................3 1.3 TECHNICAL CHARACTERISTICS ......................3 2.1 DESCRIPTION OF THE VALVE DESIGN ....................3 2.2 MATERIALS ..............................4 2.3 DIMENSIONS .............................. 5 2.4 REFERENCE STANDARDS ........................6 2.5 ORDERING INFORMATION ........................

  • Page 3: Technical Description

    - spindle head-type seal in valve cover (O-rings) 1.2 USE The Type 2901 and 2903 cast iron flange-to-flange wedge gate valves with soft seals are intended for water supply systems, especially for potable water, sewage systems, and industrial processing systems. The valves are intended for overground and underground (vaulted) systems and must be installed in horizontal pipelines.

  • Page 4: Materials

    The valve cover to body seal is a rubber gasket which also seals the bolt penetration points to prevent any leaks from their leads. All inner and outer cast-iron surfaces of the valve are epoxy powder coated. The gate valves from DN350 to DN400 feature a wedge guide system made of plastic inserts. 2.2 MATERIALS The table below lists the structural materials of the gate valves with soft seals.

  • Page 5: Dimensions

    2.3 DIMENSIONS 2901 2903 Actuator type PN16 (PN10) PN16 (PN10) PN16 (PN10) [mm] 18.2696.0060AK 18.2696.0070AK 18.2696.0080AK 18.2696.0100.AK 18.2680.0120.AK 18.2680.0140.AK 18.2681.0170.AK 12 (8) 18.2681.0220.AK 1053 355 (350) 28 (23) 18.2719.0270.AK 1178 410 (400) 28 (23) 18.2719.0320.AK 1437 470 (460) 28 (23) 18.2724.0400.AK...

  • Page 6: Reference Standards

    - maximum operating temperature, acc. to PN-89/H-02650. 2.6 PRODUCTION AND ACCEPTANCE Type 2901 and 2903 gate valves with soft seals are accepted and produced in accordance with PN-EN 1074-2: 2002 (Valves for water supply. Fitness for purpose requirements and appropriate verification tests. Stop fittings) and PN-EN 12266-1: 2012 (Industrial valves.

  • Page 7: Protection, Storage & Transport

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

  • Page 8: Transport

    4 ASSEMBLY AND INSTALLATION 4.1 ASSEMBLY GUIDELINES Type 2901 and 2903 flange-to-flange wedge gate valves with soft seals and a pneumatic linear actuator can be installed in underground or overground pipelines both in horizontal or vertical orientation. The listed products are suitable for joining with the flanged ends of pipelines with the size equal to that of the valve flanges.

  • Page 9: Assembly Instructions

    4.2 ASSEMBLY INSTRUCTIONS Before attempting to install the valve, check the technical and commercial documents delivered with the product to verify that the media and pipeline operating parameters comply with the manufacturer's declaration. Any change in the operating conditions must be consulted with the valve manufacturer beforehand. Before attempting to assemble the valve, remove the main bore plugs, check the inner surfaces of the valve and thoroughly flush with water, if necessary.

  • Page 10: General

    4.4 GENERAL This Manual applies to all Group 2000 products designed for equipping with actuators (i.e. gate valves of various connection end types) and manufactured by FA. JAFAR S.A.: - Cast iron flange-to-flange wedge gate valves with soft seals - Gate valves with soft seals with threaded connection ends...

This manual is also suitable for:

2903

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