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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 structural changes to the presented product.
Operation and maintenance
manual for
GATE VALVES
WITH SOFT SEALS
AND OPENING INDICATOR
P/N
2502; 2511
President of Factory, JAFAR S.A.
OPERATION AND MAINTENANCE MANUAL
12-2016
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Table of Contents
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Summary of Contents for Jafar 2502
- Page 1 AND OPENING INDICATOR 2502; 2511 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 structural changes to the presented product.
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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 ................................3 2.1 DESCRIPTION OF THE VALVE DESIGN ....................3 2.2 MATERIALS ..............................4 2.3 DIMENSIONS .............................. 5 2.4 REFERENCE STANDARDS ........................ -
Page 3: Technical Description
1.3 TECHNICAL SPECIFICATION The Type 2502 and 2511 gate valves with soft seals and position indicator are applied in transfer of potable water, process water and other liquids as approved by the manufacturer. - temperature range: -10°C to +70°C... -
Page 4: Materials
hexagon socket head cap screws mounted flush with the valve cover and secured with paraffin compound. The fastening bolts are either galvanized steel or stainless steel. 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. -
Page 5: Dimensions
Diagram of the gate valve with soft seals and opening indicator. 2511 2502 Mass Mass PN16 (PN10) PN16 (PN10) PN16 (PN10) PN16 (PN10) [mm] [mm] 2511 [kg] 2502 [kg] 12 (8) 355 (350) 28 (23) 410 (400) 28 (23) OPERATION AND MAINTENANCE MANUAL 12-2016... -
Page 6: Reference Standards
- maximum operating temperature, acc. to 89/H-02650. 2.6 PRODUCTION AND ACCEPTANCE Type 2502 and 2511 gate valves with soft seals and opening indicator are accepted and produced in accordance with EN 1074-2 (Valves for water supply. Fitness for purpose requirements and appropriate verification tests. -
Page 7: Markings
2.7 MARKINGS The gate valve marking meets the following standards: EN-19; EN-1074-1. 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 The TYPE 2502 and TYPE 2511 gate valves with soft seals and position indicator can be installed in surface 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.