Jafar 2502 Page 1 Operation And Maintenance Manual Download

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OPERATION AND MAINTENANCE MANUAL

12-2016

Operation and maintenance

manual for

GATE VALVES

WITH SOFT SEALS

AND OPENING INDICATOR

P/N

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.

Summary of Contents for 2502

Page 1: ...ved 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 a...

Page 2: ...3 2 2 MATERIALS 4 2 3 DIMENSIONS 5 2 4 REFERENCE STANDARDS 6 2 5 ORDERING INFORMATION 6 2 6 PRODUCTION AND ACCEPTANCE 6 2 7 MARKINGS 7 3 PROTECTION STORAGE TRANSPORT 7 3 1 PROTECTIVE COATINGS 7 3 2 PA...

Page 3: ...Nm 55 80 100 200 Valve control mode the standard version of gate valve has the clockwise closing sense of rotation The closing sense of rotation can be opposite on special order Installation length E...

Page 4: ...2 Cover Cast iron EN GJS 400 15 EN GJS 500 7 EN 1563 3 Wedge Cast iron EN GJS 400 15 EN GJS 500 7 Rubber EPDM NBR EN 1563 EN 1629 4 Skid Polyamide EN ISO 1874 1 5 Spindle Steel grade 1 4057 1 4021 EN...

Page 5: ...18 19 80 180 280 385 132 200 160 19 19 3 8 200 17 21 23 100 190 300 435 156 220 180 19 19 3 8 250 19 30 33 125 200 325 475 184 250 210 19 19 3 8 250 19 36 42 150 210 350 535 211 285 240 23 19 3 8 250...

Page 6: ...ular nuts style 1 Product grades A and B ISO 965 1 General purpose ISO metric threads Tolerances Principles and basic data ISO 2903 Trapezoid ISO metric threads Tolerances EN ISO 4762 Hexagon socket h...

Page 7: ...following data manufacturer s company name and logo serial number sealing temperature rating construction mark B and or mark CE as applicable product type 3 PROTECTION STORAGE TRANSPORT 3 1 PROTECTIVE...

Page 8: ...d 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 Note...

Page 9: ...ions Leaving the gate valve partially opened or closed may result in seal failure To ensure full performance switch the knife gate valve periodically once a year from fully open to fully closed Exceed...