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Double-stage Gas Pressure Regulator Manufacturer
Double-stage Pressure Regulator
HEAPE NR-S SERIES double-stage pressure regulator is used on gas line to reduce inlet pressure to desired outlet pressure.
It is suitable for both commercial and domestic usage where can be directly installed to gas meters with high operational reliability and accurate outlet pressure accuracy.
Simple installation procedure.
Due to different inlet and outlet connection range, NR-S Series regulator can be used along with pipe diameter from DN15 to DN50 with different thread standards as well as BSP, BSPT, NPT, NPP.
The modular concept of NR series and wide range availability of inlet and outlet connections allow to match particular customer requirements.
The regulators are manufactured according to Ped Directive 2014/68/EU. The functional tests are performed according to EN334.
FEATURES
- For medium pressure domestic or commercial second group gas lines.
- Optional metallic mesh filter for easy change and guarantees longer operation life of regulator.
- Outlet pressure tolerance is +%10 (AC10) up +- %5 (AC5)
- Lock-up pressure tolerance is +%20 (SG20) up to 100 mbar outlet pressure, more than 100mbar outletpressure SG20 and SG10 possible.
- Up to 6 bar inlet pressure.
- 18 – 500 mbar outlet pressure range with interchangeable springs
Optional :
- Incorporated Over Pressure Shut Off Valve.
- Incorporated Under Pressure Shut Off Valve.
- Internal Relief Valve
NR-S 01
NR-S 01
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Details You Need To Know About 2-stage Pressure Regulator
The Drawing of Diamension and the connection
The ERG-SE Series pressure regulator body may consists of:
• Valve housing
• Connections
• Filter
• Ventilation console
• Outlet pressure test point
• Integrated security valves (OPSO / UPSO / Relief)
The connect have different type
- Inlet thread: 1/2″, 3/4″,1
- Outlet thread: 1″, 1-1/4″, 1-1/2″
SPECIFICATIONS
- Medium : Natural Gas, LPG and Non-Corrosive Gases
- Operating temperature : -20… + 60°C (optional : -40… +60°C)
- Assembly : Vertical and Horizontal Position
- Maximum inlet pressure : 6 bar
- Minimum inlet pressure : Depending on customer request can start as low as 0,1 bar.
- Outlet pressure range : 18 to 500 mbar.
- Filter : Included
MATERIALS
- Body and covers Zamakaccording to EN1774standard.
- Rubber components are Nitril Rubber comply to EN 549.
- Brass materials are suitable according to EN12164 – EN12165 Standard.
- Filter material is metallic mesh filter.
SAFETY AND ACCESSORIES
Relief Valve
Regulator can be produced with a relief valve. Relief valve monitors outlet pressure continuously and when it detects pressure level higher than regulator’s nominal outlet pressure, it activates and discharges gas to the atmosphere.
Relief valve has limited discharge capacity.
Usually calibration point is lower than OPSO system. Under certain conditions such as gas expansion during hot weather seasons, Relief Valve is activated before OPSO closes the gas lines. It prevent random shut-off regarding pressure increase on outlet side.
Relief valve can be recalibrated by using proper tools.
Over Pressure Shut-Off System
OPSO system is very useful during major breakdown situations and keeps the customer side safe. System works as a security valve and activates itself when the outlet pressure passes OPSO calibration point. OPSO system cuts the gas off, and manual reset is needed to activate the regulator again.
System has an independent shut-off mechanism and orifice and it monitors outlet pressure changes continuously, so activation time is below 2 seconds.
Under Pressure Shut-Off System
UPSO system on NR-S series regulator acts under those circumstances;
- When there is no pressure inlet side.
- When the consumption exceed regulator’s maximum capacity. (%101*Q to %150*Q)
- When the pressure drop outlet side due to consumption.
UPSO valve continuously monitors outlet pressure changes. Scenarios like, pipeline breakdown on outlet sides, or consumption is exceeding the total capacity of regulator or lack of inlet pressure situations etc…the outlet pressure drops and the regulator cuts the gas off once UPSO system is activated.
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