|
|
| |
|
|
|
|
|
|
 Click to enlarge image
|
 Model Number |
DSR-3 IMR/OPCO |
 |
 General
features |
|
Dependable control of widely varying inlet pressure
Smooth, steady outlet pressure and flow
Features added safety advantage of second gas tight lock-up device
Designed to meet D.O.T Safety Standards
light weight compact and easy to install
Interchangeable brass orifice |
|
|
|
| General
Description |
|
| The DSR-3-OPCO series of regulators
are available in a variety of models to suit the service installation
requirements. Designed for use in distribution systems with pressure
up to 1000kPa. Capacities to 70㎥/h depending on model, type, connection
size, inlet and outlet pressure. Specially engineered and manufactured
for excellent control of widely varying inlet pressure and fluctuating
flow rates. All models are interchangeable at the throat of the valve
body. Stainless steel vent screen. |
|
|
|
| Technical
features |
|
Design
-- Design Direct-acting pressure regulator with
-- spring control and diaphragm ( Lever type )
Operating
temperature
-- From -20°C to ＋60°C
Acceptable
gases
-- Natural gas, propane, air, nitrogen or any non-
-- corrosive gas
Safety
devices
-- Incorporated relief valve (Over Pressure Cut-off)
connections
-- Gas female threaded 1"PT
Pressure
range
-- Inlet pressure Pmax :1000kPa,
-- Outlet pressure 1.1kPa to 4.3kPa |
| Construction materials
|
| Description |
Materials |
| BODY |
Ductile cast Iron |
| Casing and cast |
Die cast Aluminium |
| Internal parts |
Stainless steel and brass |
| Seals |
N.B.R |
| Diaphragm |
N.B.R |
Orifice size
The Series DSR-3-OPCO gas pressure regulators have an orifice
of 5㎜, 7㎜, 12.5㎜. |
| Safety devices
|
Version
code |
DSR-3 |
DSR-3-IMR |
DSR-3-OPCO |
Safety
devices |
Internal
Relief valve |
Internal
Relief valve |
Internal
Relief valve |
| - |
Internal
Monitor |
Over pressure
Cut-off |
|
|
|
|
| Schematic
Sequence of OPCO (Over Pressure Cut-off) Operation |
|
|
|
|
|
| PRINCIPLE
OF OPERATION |
|
The safety Over pressure cut-off valve is a safety
device that operates when the pressure in the downstream pipe increases
beyond the prefixed values, cutting the fluid automatically.
The safety valve consists in a body, a control casing, a diaphragm
assembly and a cut-off stem group which is controlled by a mechanical
ball system.
The safety Over pressure cut-off valve is actuated when in the lower
regulation diaphragm housing, the downstream pressure value, introduced
by the impulse intake from the downstream pipe, increases or decreases
beyond the values preset, thus moving the diaphragm assembly from
a balanced position, triggering the stem and the valve plug : under
the force of the spring, it closes immediately the orifice, cutting
the flow of the fluid automatically.
|
|
|
| Maximum
Capacities of the Regulator (DSR-3-IMR) |
|
Capacity
Data l |
Inlet
Pressure
(kPa) |
Natural Gas (0.6)
[Unit : N㎥/h] |
Ø3.0 ㎜
|
Ø5.0 ㎜
|
Ø7.0 ㎜
|
Ø8.0 ㎜ |
Outlet
Pressure
2.0 kPa
RG10
Pressure
range
1.6 ∼ 2.4
kPa
|
5.0
|
- |
1 |
3 |
4 |
7.0
|
- |
2 |
4 |
5 |
10
|
1 |
3 |
5 |
6 |
20
|
2 |
4 |
6 |
7 |
30
|
3 |
5 |
7 |
8 |
| 40 |
4 |
6 |
8 |
9 |
| 50 |
5 |
7 |
9 |
10 |
| 80 |
6 |
8 |
10 |
10 |
| 100 |
7 |
9 |
10 |
10 |
| 200 |
8 |
10 |
10 |
- |
| 300 |
9 |
10 |
10 |
- |
| 400 |
10 |
10 |
10 |
- |
| 500 |
10 |
10 |
|
- |
| 600 |
10 |
10 |
- |
- |
| 700 |
10 |
10 |
- |
- |
| 800 |
10 |
- |
- |
- |
| 900 |
10 |
- |
- |
- |
| 990 |
10 |
- |
- |
- |
|
|
|
|
|
| Maximum
Capacities of the Regulator (DSR-3-OPCO) |
|
Capacity
Data l |
Inlet
Pressure
(kPa) |
Natural Gas (0.6)
[Unit : N㎥/h] |
| Ø3.5 ㎜ |
Ø4.5 ㎜ |
Ø6.0 ㎜ |
Ø10.0 ㎜ |
Ø13.0 ㎜ |
|
Outlet
Pressure
2.0 kPa
RG10
Pressure
range
1.5 ∼ 2.5
kPa
|
5.0
|
2.0 |
2.0 |
2.5 |
4.0 |
4.5 |
10
|
4.0 |
4.0 |
4.5 |
6.5 |
7.0 |
20
|
4.5 |
4.5 |
7.0 |
12 |
15 |
30
|
5.0 |
7.0 |
9.0 |
16 |
21 |
40
|
7.0 |
10 |
13 |
18 |
26 |
| 50 |
8.0 |
12 |
15 |
20 |
33 |
| 70 |
10 |
16 |
21 |
25 |
40 |
| 80 |
11 |
17 |
26 |
29 |
43 |
| 100 |
13 |
18 |
33 |
38 |
47 |
| 200 |
24 |
29 |
42 |
44 |
- |
| 300 |
30 |
38 |
60 |
63 |
- |
| 400 |
35 |
47 |
65 |
- |
- |
| 500 |
44 |
54 |
70 |
- |
- |
| 600 |
52 |
57 |
70 |
- |
- |
| 750 |
61 |
64 |
70 |
- |
- |
| 850 |
66 |
- |
- |
- |
- |
| 990 |
70 |
- |
- |
- |
- |
|
|
|
|
|
|
| |
|
|
|
Related Keywords:
Bookmark / Share this page