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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
PN25
DRIVE-READY
FLANGED
GATE VALVES
WITH SOFT SEALS
P/N
2911
2902
President of Factory, JAFAR S.A.
OPERATION AND MAINTENANCE MANUAL
12-2016
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Table of Contents
Related Manuals for Jafar 2911
Summary of Contents for Jafar 2911
- Page 1 2911 2902 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 2.1 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
1.3 TECHNICAL SPECIFICATION The Type 2902 and 2911 drive-ready flanged cast iron wedge gate valves with soft seals are applied in transfer of potable water, process water and other liquids as approved by the manufacturer. -
Page 4: Materials
The stem is tipped with a Form B3 (coupling type) key shaft sized according to EN ISO 5210. 2.2 MATERIALS The table below lists the structural materials of the gate valves with soft seals. Item Part designation Material Reference standard Cast-iron, EN-GJS-400-15 Body EN 1563... -
Page 5: Dimensions
2.3 DIMENSIONS AUMA 2911 2902 type-flange / opening torque / No. of turns [mm] [mm] Saxx.x-Fx / [Nm] / --- 140 240 265 250 SA 7.2-F7 10-30 150 250 13,5 170 270 185 118 145 180 280 200 132 160 SA 7.6-F10... -
Page 6: Reference Standards
- maximum operating temperature, acc. to 89/H-02650. 2.6 PRODUCTION AND ACCEPTANCE Type 2902 and 2911 drive-ready flanged gate valves with soft seals 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 2902 and TYPE 2911 drive-ready flanged gate valves with soft seals can be installed in underground or 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: Operation
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 flanged wedge gate valves with soft seals - Gate valves with soft seals with threaded connection ends... -
Page 10: Warranty Terms And Conditions
personal protective equipment for hands, legs and head, and safety garment), especially at work with low or high temperature hazard. Misuse of this product is prohibited. 5 WARRANTY TERMS AND CONDITIONS The product assembled, installed and operated in compliance with this Manual is covered by a commercial warranty from the manufacturer.