Jafar 2005 Operation And Maintenance Manual Download

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DOKUMENTACJA TECHNICZNO RUCHOWA

03-2016

Operation

and Maintenance Manual

KNIFE

GATE VALVES

Cat. no.

2005, 2905

Approved for application by:

President of the JAFAR S.A. factory

The user's failure to follow the guidelines and regulations provided in the following

operating and maintenance manual releases the manufacturer from obligations and warranties.

Due to the continuous development of our company we reserve the right to introduce

modifications and design changes to the presented product.

Summary of Contents for 2005

Page 1: ...t of the JAFAR S A factory The user s failure to follow the guidelines and regulations provided in the following operating and maintenance manual releases the manufacturer from obligations and warrant...

Page 2: ...ALVE DESIGN 3 2 2 MATERIALS 4 2 3 DIMENSIONS 5 2 4 STANDARDISATION 7 2 5 ORDERING 7 2 6 PRODUCTION AND ACCEPTANCE 7 2 7 MARKING 7 3 PROTECTION STORAGE TRANSPORT 8 3 1 PROTECTIVE COATINGS 8 3 2 PACKAGI...

Page 3: ...liquids as approved by the manufacturer Operating temperature to 70 C Nominal diameter dimension range D50 to DN1000 mm Maximum medium flow rate liquid max 4 m s gas max 30 m s The driving torque at...

Page 4: ...able lists the structural materials of the flange to flange knife gate valves Item Part designation Material Reference standard 1 Body Cast iron EN GJS 400 15 PN EN 1563 2012 2 Gland Cast iron EN GJS...

Page 5: ...250 350 395 319 23x8 680 5665 52 52 300 400 445 370 23x8 794 8755 62 63 350 460 505 430 23x10 M20x6 890 11640 72 83 400 515 565 480 28x10 M24x6 86 990 15520 68 98 500 620 670 582 28x12 M24x8 1820 2231...

Page 6: ...460 505 430 23x10 M20x6 1180 72 106 400 515 565 480 28x10 M24x6 86 1286 68 146 500 620 670 582 28x12 M24x8 1520 85 282 600 725 780 682 31x12 M27x8 1725 102 332 700 840 895 794 31x14 M27x10 165 2018 11...

Page 7: ...screw threads Tolerances Principles and basic data PN ISO 2903 1996 ISO metric trapezoidal screw threads Tolerances PN EN ISO 4762 2006 Hexagon socket head cap screws PN ISO 1629 2005 Rubber and lati...

Page 8: ...OTECTIVE COATINGS All internal and external cast iron surfaces are protected with epoxy paint applied using the electrostatic method The paint has a certificate allowing for its use in contact with fo...

Page 9: ...d for mounting between flange ends of the pipelines sized for the PN10 bolt hole layout acc to PN EN 1092 2 1999 The gland on the delivered valve is loose and must be tightened before installation 4 2...

Page 10: ...M33 1630 1940 2700 M36 2100 2490 3500 M39 2720 3220 4550 Table of maximum tightening torques for individual bolts for tightening the knife gate valve gland Note that the system must not expose the val...

Page 11: ...DOKUMENTACJA TECHNICZNO RUCHOWA 03 2016 11 1 Knife gate 2 Pipeline flange end 3 Assembly bolt 4 Seal 5 Nut 6 Washer...

Page 12: ...5 K mm 125 145 160 180 210 240 295 350 400 lxn 4x18 4x18 6x18 6x18 6x18 6x22 10x22 8x22 8x22 Thread in bolts l x M x length 4 M16 x25 4 M16 x25 4 M16 x30 4 M16 x30 4 M16 x40 4 M20 x40 4 M20x 40 8 M20...

Page 13: ...and closed Lubricate the knife for a better slip with a dry Teflon grease in spray e g Pulsar or Kontaflon 85 Relubricate every 20 full cycles more frequently in harsh operating conditions Coat the k...