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 Click to enlarge image
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 Model Number |
HYR 2-815 |
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Application |
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- HYR 2-815 Series Regulator is designed for to use commercial place such as restaurant business, hotel, school, public building or factory etc to supply natural gas.
- It is suit for boiler or burning equipment device, small & medium device regulator.
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Character |
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- It is easy to install (verticality and horizontality connecting pipe, Case rotate attachment)
- Can choice proper orifice according to first stage pressure and capacity.
- Orifice, Seat disc etc replacement and maintain is possible without disconnecting regulator body to pipe.
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Specifications |
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Inlet Pressure range |
0.015~0.99 MPa |
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Outlet Pressure range |
1.6~45.0kPa(160~4500mmH2O) |
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Relief valve Setting Pressure |
3.2~67.0kPa(320~6700mmH2O) |
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OPSO Setting Pressure |
3.0~70.0kPa(300~7000mmH2O) |
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Max. capacity |
Refer to detailed specification |
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Connection Size |
50A-10K flange(Rf type) |
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Model |
Type |
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HYR 2-815 |
built-in relief valve, OPSO |
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HYR 2-815 OPSO |
With OPSO | |
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Capacity Table |
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HYR 2-815 Series Capacity table is indicating inlet pressure changing and capacity fluctuation according to orifice size. Standard object is natural gas.
(gravity=0.6, standard state N ㎥/hr) |
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HYR 2-815 OPSO Regulator Construction |
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SPRING |
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Adjusting Spring |
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Spring No. |
Pressure Range |
Color |
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Ms 2815 |
1.6~2.6kPa |
Green |
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Ms 2815-15 |
10~18kPa |
White |
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Ms 2815-25 |
16~30kPa |
Biue |
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Ms 2815-40 |
28~45kPa |
Yello |
| OPSO Spring |
| Spring No. |
Pressure Range |
Color |
| Os 81 |
3.0~4.8kPa |
Green |
| Os 81-15 |
20~27kPa |
White |
| Os 81-25 |
33~45kPa |
Biue |
| Os 81-40 |
52~70kPa |
Yello |
| Relief valve Spring |
| Spring No. |
Pressure Range |
Color |
| Rs 215 |
P2+1.2~2.8kPa |
Green |
| Rs 215-15 |
P2+4.0~9.0kPa |
White |
| Rs 215-25 |
P2+10.0~15.0kPa |
Biue |
| Rs 215-40 |
P2+12.0~27.0kPa |
Yello |
Unit : mmH20
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Regulator abnormality cause and settlement |
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| 1) Outlet part second pressure is drop |
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1) Cause |
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- Orifice size is small against to using capacity
- Gas supply is interrupted due to block gas filter
- Diaphragm is expanded due to long time using
- OPSO is locked up
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2) Settlement |
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- Replace suitable orifice according to using capacity
- Disassembly gas filter and cleaning inside
- Disassembly case and replace diaphragm
- Block inlet & outlet valve and release gas. And then, restore OPSO.
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| 2) Outlet part second pressure is increasing |
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1) Cause |
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- Lock-up condition is bad due to valve seat or orifice wear, crack etc
- First stage inlet pressure is applied toward OPSO because of OPSO Shaft O-ring damage
- Assembly lever linked diaphragm operation is not good
- Volume changing is happen due to temperature
- First stage inlet pressure is applied due to orifice sealing condition
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2) Settlement |
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- Disconnecting case from pipe and replace valve seat and orifice
- Disconnecting OPSO from pipe and replace shaft O-ring
- Disassembly case and replace Assembly lever
- Keeping warm the expose pipe
- Re-assembly orifice sealing by sealing materials
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| 3) In case of regulator hunting |
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1) Cause |
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- Orifice size is too much big against to capacity and pressure
- First stage pressure is unstabilized
- Inflow contamination materials or humidity to inside of second stage pipe
- Happening spring and diaphragm deformation due to long time use
- Large volume of gas is instantaneously & repeatedly flow and cut off.
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2) Settlement |
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- Replace suitable orifice according to using capacity and pressure
- Disassembly and inspect filter
- Remove inside of contamination materials and humidity
- Disassembly case and inspect and then replace spring and diaphragm
- Secure sufficient second stage pipe volume
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