Jafar 2911 Operating Manual Download Page 5

 

 

 

 
 

OPERATING MANUAL 

06-2021 

5/8 

 
 

 

 
The location on the valve specified in the documentation features the nameplate which contains the following 
data: 

 

 

1.

 

Manufacturer's company and country of origin 

2.

 

Manufacturer's company logo 

3.

 

Polish construction mark (for the full range of diameter values) 

4.

 

Alphanumerical reference designation for the bolt hole pattern drilling on the flange to be connected to 
the piping (PN) 

5.

 

CE marking 

6.

 

Maximum permitted pressure (PS) 

7.

 

Barcode 

8.

 

Maximum / minimum permissible temperature (TS) 

9.

 

Production serial no. in the calendar year  

10.

 

Seal material 

11.

 

Year of manufacture of the product 

12.

 

Diameter, bore and nominal size (DN) 

13.

 

Reference standard the product is compliant with 

14.

 

Product name 

 

The gate valves with GSK RAL certified corrosion protection feature the corresponding label: 

 

 
 

1.

 

GSK logo 

2.

 

Certificate title 

3.

 

Certificate reference 
number 

 

 

 
The gate valves may feature additional markings, which depends on the market they are sold on, including. NF, 
WRAS, DVGW and other.  

4.

 

STORAGE & TRANSPORT 

 
The products are packed

 

on EURO pallets (1200x800 mm) or in custom containers, as applicable. Store the valves 

in

 

clean indoor rooms

 

without bacteriological

 

or chemical contaminants and at a room temperature between -20

°

and 70

°

C. Protect the paint coat and rubber parts from

 

prolonged exposure to UV radiation. The filters should be 

protected against mechanical damage.  

Summary of Contents for 2911

Page 1: ...OPERATING MANUAL 06 2021 1 8 OPERATING MANUAL Flanged gate valves with soft seals P N 2111 2002 under actuator 2911 2902 with actuator...

Page 2: ...MANUAL 06 2021 2 8 TABLE OF CONTENTS 1 INTENDED USE 3 2 TECHNICAL DESCRIPTION 3 3 PRODUCT IDENTIFICATION MARKING 4 4 STORAGE TRANSPORT 5 5 INSTALLATION 6 6 OPERATION AND MAINTENANCE 7 7 SAFETY 8 8 WA...

Page 3: ...0 78 1920 Valve control mode the standard version of the gate valve has the clockwise closing sense of rotation The closing sense of rotation can be opposite on special order Connection flanges are ma...

Page 4: ...ing of metallic valves EN 1074 1 Valves for water supply Fitness for purpose requirements and appropriate verification tests Part 1 General requirements The gate valve bodies feature markings on the f...

Page 5: ...re of the product 12 Diameter bore and nominal size DN 13 Reference standard the product is compliant with 14 Product name The gate valves with GSK RAL certified corrosion protection feature the corre...

Page 6: ...with the product to verify that your media and pipeline operating parameters comply with the manufacturer s declaration Any change in the operating conditions must be consulted with the manufacturer...

Page 7: ...Section 2 If the valve operation is difficult i e the valve reaches the maximum driving torque before either of its limit positions e g due to scale on the spindle threads repeat the full operation t...

Page 8: ...ording to ATEX requirements Do not use tools which may generate electrostatic discharge in the ATEX zone Do not use the product without thorough knowledge and understanding of this Operating Manual Fo...

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