Water valve- DHD21 pilot diaphragm structure
Characteristic: 1.Pilot operated diaphragm construction with less power consumption for longtime working;
2. Applied to pressure system opened from 0.3 bars;
3. Lifespan can be at 1 million cycles.
Medium: Water, air, gas, etc.
Temperature: NBR Seal: 14F to 176F, -10 to 80
EPDM Seal: 14F to 250F, -10 to 120
VITON Seal: 14F to 300F, -10 to 150
Pressure: DHD21: 0.3 ~ 10 bar
Port Size: 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2"
Port Thread: BSPP, BSPT, NPT, Flange, UNF, M8X1
Orifice (mm): 12, 15, 20, 25, 32, 40, 50
Voltage: DC - 12V, 24V
AC - 24V, 120V, 240V/60HZ; 110V, 220V/50HZ
Tolerance: +/- 10%
Coils: S91B/H, 17VA (AC), 10W (DC), IP65, 100%ED
Special coils: EX coil AC 220 V, DC 24 V;
Latching coil. DC 6 ~ 12 V on request)
Equivalent code DHL21 series
NASS COIL 0543 is suitable for DHD21
Material: Stainless steel/BRASS
Seal -NBR, EPDM, or VITON
Armature Tube - Stainless Steel 304
Plunger - Stainless Steel 430F
Stop -Stainless Steel 430F
Springs - SS 304
Shading Rings - Stainless Steel 304
DHD21 Series Normally Closed, with Coil S91B, DIN
|
Port Size |
Orifice |
Cv |
Min Pressure(bar) |
Max Pressure(bar) |
Valve Body |
Coil |
|
|
AC(22VA) |
DC(14W) |
||||||
|
3/8" |
12 |
4.5 |
0. 3 |
10 |
10 |
DHD2112 X X X |
S21B/H |
|
1/2" |
15 |
4.5 |
0. 3 |
10 |
10 |
DHD2115 X X X |
S21B/H |
|
3/4" |
20 |
9.3 |
0. 3 |
10 |
10 |
DHD2120 X X X |
S21B/H |
|
1" |
25 |
12 |
0. 3 |
10 |
10 |
DHD2125 X X X |
S21B/H |
|
1 1/4" |
32 |
24 |
0. 3 |
10 |
10 |
DHD2132 X X X |
S21B/H |
|
1 1/2" |
40 |
29 |
0. 3 |
10 |
10 |
DHD2140 X X X |
S21B/H |
|
2" |
50 |
48 |
0. 3 |
10 |
10 |
DHD2150 X X X |
S21B/H |
|
F2 1/2" |
65 |
68 |
0. 3 |
10 |
10 |
DHD2165 X X X |
S21B/H |
|
F3" |
80 |
100 |
0. 3 |
10 |
10 |
DHD2180 X X X |
S21B/H |
|
F4" |
100 |
175 |
0. 3 |
10 |
10 |
DHD21100 X X X |
S21B/H |
|
F5" |
125 |
200 |
0. 3 |
10 |
10 |
DHD21125X X X |
S21B/H |
|
F6" |
150 |
250 |
0. 3 |
10 |
10 |
DHD21150X X X |
S21B/H |
