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GATE VALVES WITH SOFT SEALS WITH THREADED
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
CONNECTIONS
Cat. no.
3116
3126
President of Factory, JAFAR S.A.
OPERATING AND MAINTENANCE MANUAL
12-2016
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Table of Contents
Related Manuals for Jafar 3116
Summary of Contents for Jafar 3116
- Page 1 3116 3126 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
TABLE OF CONTENTS 1 TECHNICAL DESCRIPTION ..........................3 1.1 PRODUCT NAME AND FEATURES ......................3 1.2 PURPOSE ..............................3 1.3 TECHNICAL SPECIFICATION ........................3 2 DESIGN ................................3 2.1 FITTING DESIGN DESCRIPTION ......................3 2.2 MATERIALS ..............................4 2.3 DIMENSIONS .............................. 5 2.4 STANDARDS ............................... -
Page 3: Technical Description
- stem head-type seal in valve cover (O-rings) 1.2 PURPOSE The Type 3116 and 3126 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 surface and underground systems and must be installed in horizontal pipelines. -
Page 4: Materials
their openings. All inner and outer cast-iron surfaces of the gate valve are epoxy powder coated. The stem may be operated manually using a hand wheel or, in case of gate valves located underground, through a hood and gate valve casing, using a T socket. 2.2 MATERIALS This table lists the materials used in the construction of gate valves with soft seals. -
Page 5: Dimensions
2.3 DIMENSIONS TYPE 3116 DN40-DN50 TYPE 3126 DN40-DN50 TYPE 3116 DN25-DN32 TYPE 3126 DN25-DN32 G / R Weight [mm] [mm] [inch] 3116 [kg] 3126 [kg] 1" / 1" 5/4" / 5/4" 5/4" / 2" 6/4" / 6/4" 6/4" / 2"... -
Page 6: Standards
2.4 STANDARDS EN 1074-1 Valves for water supply. Fitness for purpose requirements and appropriate verification tests. General requirements. EN 1074-2 Valves for water supply. Fitness for purpose requirements and appropriate verification tests. Isolating valves. 89/H-02650 Fittings and pipelines. Pressures and temperatures for fittings, connectors and equipment with PN markings. -
Page 7: Manufacture And Acceptance
2.6 MANUFACTURE AND ACCEPTANCE TYPE 3116 and TYPE 3126 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. Isolating valves) and EN 12266-1 (Industrial valves. Testing of metallic valves). All gate valves are leak tested (100%). -
Page 8: Transport
4 ASSEMBLY AND INSTALLATION 4.1 INSTALLATION GUIDELINES The TYPE 3116 and TYPE 3126 threaded 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 threaded ends of pipelines with (thread) size equal to that of the valve threads. -
Page 9: Operation
4.3 OPERATION The gate valve shall be operated in accordance with all relevant requirements for cut-off valves, i.e. either in fully open or fully closed positions. Leaving the gate valve partially opened (or closed) may result in seal failure. To ensure full performance, switch the gate valve periodically (once a year), from fully open to fully closed. Exceeding the operating limits of the valve may result in damage that will not be covered by the suretyship granted by the manufacturer.