Jafar 2904 운영 및 유지보수 매뉴얼 - 페이지 11
{카테고리_이름} Jafar 2904에 대한 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Jafar 2904 11 페이지. One-way knife gate valves with drive actuator
페이지 인쇄Table 4
DN [mm]
50
65
D [mm]
165
185
K [mm]
125
145
Lxn
4x18 4x18 8x18 8x18 8x18 8x22 8x22
Thread-in
8
8
bolts
M16
M16
(l x M x
x25
x25
length)
Z [mm]
8
8
Bolts with
nuts
-
-
(l x M x
length)
4.3 OPERATION
The type 2904 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 gate valve partially opened (or closed) may result in
seal failure. In order to guarantee full operating fitness, switch the gate valve periodically (at least every 6
months) (from fully open to fully closed) with the installation on line to self-clean the valve. At the same time
visually inspect the gland assembly. If leaks are found, repair it by following Section 4.1.
Exceeding the operating limits of the valve may result in damage that will not covered by the suretyship
granted by the manufacturer.
4.4 OCCUPATIONAL HEALTH AND SAFETY
The Type 2904 knife gate valves are eligible for the OHS guidelines and recommendation concerning
installation of pipelines and devices for water supply stations, heat power plants, water treatment plants, sewage
treatment plants, pumping stations and other facilities, and eligible for the Polish Regulation concerning general
OHS laws (use of personal protective equipment for hands, legs and head, and safety garment), especially at
work with low or high temperature hazard.
Misuse of this product is prohibited.
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.
Warranty Sheet.
80
100
125
150
200
220
250
285
160
180
210
240
8
8
8
8
M16
M16
M16
M20
x30
x30
x30
x35
9
9
9
10
4
4
4
4
M16
M16
M16
M20
x120
x120
x120
x130
The warranty terms, conditions and period are specified in the relevant
OPERATION AND MAINTENANCE MANUAL
200
250
300
350
340
395
445
505
295
350
400
460
12x2
12x2
16x2
2
2
2
8
16
16
20
M20
M20
M20
M20
x35
x40
x40
x45
12
12
12
19
4
4
4
6
M20
M20
M20
M20
x140
x150
x150
x180
400
450
500
600
565
615
670
780
515
565
620
725
16x2
20x2
20x2
20x3
2
6
6
0
20
28
28
28
M24
M24
M24
M27
x50
x55
x55
x55
20
24
24
24
6
6
6
6
M24
M24
M24
M27
x190
x200
x200
x200
03-2016
700
895
840
24x3
0
32
M27
-
8
M27
x210
11