|
|
| |
|
|
|
|
|
|
 Click to enlarge image
|
 Model Number |
HYR 815 |
| * |
Application |
|
HYR 815 Series Regulator is designed for commercial use such as restaurant business, small factory, apartment etc to supply natural gas.
|
|
|
| * |
Character |
|
- 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.
|
|
|
|
|
| * |
Specifications |
|
|
Inlet Pressure range |
0.007~0.99 MPa |
|
Outlet Pressure range |
1.5~3.8kPa(150~380mmH2O) |
| Outlet Pressure setting |
2.0(200mmH2O) |
|
Relief valve Setting Pressure |
S : 4.5kPa(450mmH2O)
R : second stage pressure(P2)+1.2~2.8kPa |
|
OPSO Setting Pressure |
S : 4.0kPa(400mmH2O)
R : 3.0~4.8kPa(300~480mmH2O) |
|
Max. capacity |
70 Nm3/hr |
|
Connection Size |
PT 1 B |
|
Model |
Type |
|
HYR 815 |
Standard |
|
HYR 815 R |
Built-in relief valve |
|
HYR 815 OPSO |
Built-in relief valve, OPSO | |
|
| * |
Capacity Table |
|
HYR 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 m?/hr) |
|
|
|
|
| * |
HYR 815 OPSO Regulator Construction |
|
|
|
|
| * |
SPRING |
|
|
|
Main Spring |
|
Spring No. |
Pressure Range |
Color |
|
Ms 815 |
1.5kPa
(150~380mmH2O) |
Green | |
|
OPSO Spring |
|
Spring No. |
Pressure Range |
Color |
|
Os 81 |
3.0~4.8kPa
(300~480mmH2O) |
Green | |
|
Relief valve Spring |
|
Spring No. |
Pressure Range |
Color |
|
Rs 15 |
P2+1.2~2.8kPa
(P2+120~280mmH2O) |
Green | |
|
Unit : mmH20 | |
| * |
Regulator abnormality cause and settlement |
|
| 1) Outlet part second pressure is drop |
|
1) Cause |
|
|
- 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
| |
|
2) Settlement |
|
|
- 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.
| |
|
|
| 2) Outlet part second pressure is increasing |
|
1) Cause |
|
|
- 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
| |
|
2) Settlement |
|
|
- 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
| |
|
|
| 3) In case of regulator hunting |
|
1) Cause |
|
|
- 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.
| |
|
2) Settlement |
|
|
- 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
| | | |
|
|
|
|
| |
|
|
|
Related Keywords:
Bookmark / Share this page