Jafar 2005 Manuel d'utilisation et d'entretien - Page 13

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DN [mm]
D [mm]
K [mm]
lxn
Thread-
in bolts
(l x M x
length)
Z [mm]
Bolts
with nuts
(l x M x
length)

4.3 OPERATION

The knife gate valve shall be operated according to all relevant requirements for cut-off valves, i.e.
either in fully open or fully closed positions. Leaving the knife 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).
MAINTENANCE
Lubricate the spindle in the nut with a grease, e.g. Ł15 or equivalent (replenish the lubricant at least
once a year) by applying the lubricant with a brush and then fully turning the valve open 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 knife when the
gate valve is fully open.
Exceeding the operating limits of the valve may result in damage that will not covered by the
suretyship granted by the manufacturer.
4.4 OH&S REGULATIONS
Guidelines and recommendations provided in OH&S regulations applicable to pipelines and devices
installed in water stations, thermal power plants, water purification plants, sewage processing plants, pump
stations and other similar structures as well as the regulation on the general occupational health and safety
regulations (use of upper limb protection, use of lower limb protection, head protection, protective
clothing) in cases of exposition to low and high temperatures apply when using gate valves with soft seal.
The use of products otherwise than in accordance to their intended use is not allowed.

5 WARRANTY TERMS AND CONDITIONS

The product assembled, installed and operated in compliance with this Manual is covered by a
commercial warranty from the manufacturer.
The warranty terms, conditions and period are specified in the relevant Warranty Sheet.
350
400
500
600
505
565
670
780
430
515
620
725
10x22 10x26 12x26 12x30 14x30 14x30 16x30
6
6
16
16
M20
M24
M24
M27
x55
x55
x55
x55
15
20
20
25
10
10
12
12
M20
M24
M24
M27
x150
x200
x200
x250
DOKUMENTACJA TECHNICZNO RUCHOWA
700
800
900
1000
895
1015 1115
1230
840
950
1050
1160
16x33
20
20
24
24
M27
M27
M30
M33x
x60
x60
x60
80
40
40
50
55
14
14
16
16
M27
M27
M30
M33x
x280
x280
x300
350
03-2016
13