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Approved for application by:
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.
Operation
and Maintenance Manual
KNIFE
GATE VALVES
Cat. no.
2005, 2905
President of the JAFAR S.A. factory
DOKUMENTACJA TECHNICZNO RUCHOWA
03-2016
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Table of Contents
Related Manuals for Jafar 2905
Summarization of Contents
TECHNICAL DESCRIPTION
PRODUCT DESIGNATION AND IDENTIFICATION
Identifies the manual's subject: Type 2005, 2905 two-way flange-to-flange knife gate valve.
USE
Specifies the intended application of Type 2005, 2905 valves for water, sewage, and industrial systems.
TECHNICAL CHARACTERISTICS
Details operating temperature, nominal diameter range, and maximum flow rates for liquids and gases.
DESIGN
DESCRIPTION OF THE VALVE DESIGN
Describes the valve's features: full bore, stationary/rising spindle, seals, drive gear guard.
MATERIALS
Lists the materials used for various valve components like body, gland, knife, stem, etc.
DIMENSIONS
Provides dimensions (Dk, D, K, d, lxn, Mx n, H) for stationary and rising spindle knife gate valves.
STANDARDISATION
Lists relevant standards (PN-EN, ISO) for valve design, testing, materials, and threads.
ORDERING
Specifies required information for ordering valves, including catalogue number and technical details.
PRODUCTION AND ACCEPTANCE
Details manufacturing and acceptance testing based on standards like PN-EN 1074-2 and PN-EN 12266-1.
MARKING
Explains the marking requirements for valve bodies and rating plates as per standards.
PROTECTION, STORAGE, TRANSPORT
PROTECTIVE COATINGS
Describes the epoxy paint protection for cast-iron surfaces and its properties.
PACKAGING
Details how the gate valves are packaged on EURO palettes with heat-shrink covers.
STORAGE
Specifies that gate valves should be stored under a roof.
TRANSPORT
Advises transporting knife gate valves on sheltered vehicles, recommending slings for larger sizes.
ASSEMBLY AND INSTALLATION
ASSEMBLY GUIDELINES
Explains that valves can be installed underground/overground, horizontally/vertically, between flanges.
INSTALLATION INSTRUCTIONS
Advises consulting documentation, checking conditions, and cleaning internal surfaces before assembly.
OPERATION AND MAINTENANCE
Details valve operation (fully open/closed), periodic switching, spindle and knife lubrication.
OH&S REGULATIONS
Provides guidelines for occupational health and safety regulations applicable to valve use.
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