Jafar 4496 Instrukcja obsługi - Strona 3
Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Jednostka sterująca Jafar 4496. Jafar 4496 11 stron. Concentric butterfly valves
Drukuj stronę
1. INTENDED USE
P/N 4495, 4496, and 4497 concentric butterfly valves are intended for potable water supply systems, blackwater
sewage systems and (if approved by the manufacturer) industrial media systems. Each valve can be installed in
overground and underground pipelines as an integral inline part of the piping. The valves are intended for stopping
and controlling the medium flow rate by operating the lever, a partial-turn gearbox, or a pneumatic or electric
operator (drive unit). The selected drive unit must ensure a stable closure actuation angle within 0° - 90°
and the correct operating torque value, see Table 1 or 2. P/N 4495 lug valves, P/N 4497 wafer valves, and P/N
4496 flanged valves are for installation between the opposing flanged ends of piping. P/N 4495 lug valves can also
be installed as termination of piping by using the valve body threaded holes.
2. TECHNICAL DESCRIPTION
•
Production and acceptance according to EN 1074-2 (Valves for water supply. Fitness for purpose
requirements and appropriate verification tests. Isolating valves) and EN 12266-1 (Industrial valves. Testing
of valves).
•
100% of each valve is leak tested.
•
All concentric butterfly valves (P/N 4495, 4496, 4497) are sealed in both directions of flow.
•
Application temperature range: 0°C to +70°C.
•
Nominal pressure ratings: 1.0 MPa; 1.6 MPa.
•
Nominal diameter range:
P/N 4495 (lug valve):
P/N 4496 (flanged valve):
P/N 4495 (wafer valve):
•
Hydraulic performance: maximum medium flow rate:
liquid media: PS10 max. 3[m/s]; PS16 max. 4[m/s];
gas media (applicable to P/N 4497 only): PS10/PS16 max. 30[m/s];
•
Hydraulic resistance coefficient for the open valve varies from 0.5 to 1.7, depending on the valve DN (the
value decreases with the increase of the valve diameter).
•
Valve operating torque values:
DN
ISO
[mm]
5211
P/N
Δp
40
F05
50
F05
65
F05
80
F05
100
F07
125
F07
150
F07
200
F10
250
F10
300
F10
350
F10
400
F14
500
F14
600
F16
700
F25
800
F25
900
F25
1000
F25
1200
F30
Table 1. Operating torque values for liquid media
OPERATING MANUAL
DN40 - DN600 [mm];
DN150 - DN1200 [mm];
DN40 - DN1200 [mm];
Closing/opening torque value on valve shaft required for (Nm),
4495
1,0 [ΜPa]
1,6 [ΜPa]
15
19
20
28
26
34
35
58
55
75
91
125
130
180
273
295
364
405
520
625
1,090
1,125
1,320
1,800
2,660
3,070
3,850
4,440
-
-
-
-
-
-
-
-
-
-
07-2021
liquid media
4496
1,0 [ΜPa]
1,6 [ΜPa]
-
-
-
-
-
-
-
-
-
-
-
-
130
180
273
295
364
405
520
625
1,090
1,125
1,320
1,800
2,660
3,070
3,850
4,440
7,100
9,000
9,000
10,800
10,200
13,200
12,000
15,000
13,200
17,000
4497
1,0 [ΜPa]
1,6 [ΜPa]
15
19
20
28
26
34
35
58
55
75
91
125
130
180
273
295
364
405
520
625
1,090
1,125
1,320
1,800
2,660
3,070
3,850
4,440
7,100
9,000
9,000
10,800
10,200
13,200
12,000
15,000
13,200
17,000
3/11