Mitteldruckregler MDR 310

MDR 315/316

Container systems according to A4 B3/4

The medium pressure regulator 315 is a 1st stage pressure regulator for liquefied gas, which reduces the unregulated pressure from the liquefied gas container to 0.75 bar outlet pressure. A safety shut-off valve (OPSO – 1.0 bar) and a safety relief valve (PRV – 1.4 bar) are fitted to the regulator as safety-related equipment.

The 316 medium pressure regulator is also equipped with an emergency supply connection.

PN 25 medium pressure regulator – “f” – 40 kg/h
DVGW approved: According to EN 16129/ CE approved according to 2016/426/EG

TECHNICAL DATA
  • DVGW approved: According to EN 16129/ CE approved according to 2016/426/EC
  • Inlet pressure: 1.75-16 bar
  • Inlet connection: Pole or others on request
  • Outlet connection: G 1/2 “IG or others on request
  • Capacity: 40 kg/h (propane)
  • Outlet pressure: 0.75 bar or other on request
  • Overpressure safety shut-off valve (OPSO): 1.0 bar or other on request
  • Overpressure safety relief valve (PRV): 1.4 bar or other on request
  • Weight: 2 kg
  • Gas: LPG/LNG/Propane/Butane/Natural gas or other on request
  • Working temperature: -40°C to +80°C
OPERATING PRINCIPLES

The medium pressure regulator 310 reduces the unregulated pressure from the liquid gas container in a single stage to 0.75 bar.
In the event of an impermissibly high increase in the outlet pressure at the pressure regulator, the response pressure of the safety shut-off valve (OPSO) is reached, which then closes automatically and shuts off the gas flow upstream of the pressure regulator. The respective operating status of the OPSO can be seen on the visual display.

Clear = open
Red = closed

If there is a further increase in pressure, e.g. due to the OPSO not closing completely, after the set response pressure has been reached the safety relief valve (PRV) automatically releases a limited amount of the gas flow into the atmosphere.

PRODUCT TYPES
Medium pressure regulator MDR-315 Outlet pressure Performance Order number
MDR-315-Pol x G 1/2 IG 0,75 bar 40 kg/h 1 00 315 8 5 000 0
MDR-315-Pol x G 3/4 ÜWM 0,75 bar 40 kg/h 1 00 315 8 5 100 0
MDR-315-Pol x PVS15 0,75 bar 40 kg/h 1 00 315 8 5 515 0
MDR-315-Pol x PVS18 0,75 bar 40 kg/h 1 00 315 8 5 518 0
MDR-315-Pol x PVS22 0,75 bar 40 kg/h 1 00 315 8 5 522 0
Medium pressure regulator MDR-316 Outlet pressure Performance Order number
(additionally equipped with an emergency supply connection)
MDR-316-Pol x G 1/2 IG-Not 0,75 bar 40 kg/h 1 00 316 8 5 000 0
MDR-316-Pol x G 3/4 ÜWM-Not 0,75 bar 40 kg/h 1 00 316 8 5 100 0
MDR-316-Pol x PVS15-Not 0,75 bar 40 kg/h 1 00 316 8 5 515 0
MDR-316-Pol x PVS18-Not 0,75 bar 40 kg/h 1 00 316 8 5 518 0
MDR-316-Pol x PVS22-Not 0,75 bar 40 kg/h 1 00 316 8 5 522 0
Accessories Order number
Emergency supply adapter NV-1 1 00 091 14 038 0
Ventilation set for medium pressure regulator for installation with underground LPG tank 9 03 310 8 5 000 1
Installation set for container controller incl. MP-3 and set screws  H: 150 mm 1 00 020 93 150 0
Installation set for container controller with insect screen incl. MP-3 and set screws  H: 150 mm 1 00 020 93 150 1
Installation set for CE container incl. MP-3 and set screws: 300 mm 1 00 020 93 300 0
Installation set for CE container with insect screen incl. MP-3 and set screws  H: 300 mm 1 00 020 93 300 1
Stainless steel hose-800 mm-3/4ak x 1i 1 00 093 34 034 1
Stainless steel hose-800 mm-3/4ak x ÜWM 1 00 093 34 034 100
Stainless steel hose-800 mm-3/4ak x Stutzen 22 1 00 093 34 022 0
Stainless steel hose-800 mm-3/4ak x PE 32 Geopress-G 1 00 093 34 032 1
Stainless steel hose-800 mm-3/4ak x PE 32 Geopress-K 1 00 093 34 032 1-K
INSTALLATION AND OPERATING INSTRUCTIONS

PN 25 medium pressure regulator – “f” – 40 kg/h
DVGW approved: According to EN 16129/ CE approved according to 2016/426/EG

TYPE MDR-315 with OPSO and PRV

DESCRIPTION: 
The container pressure regulator type 315 is a 1st stage pressure regulator which reduces the unregulated pressure from the liquid gas container to 0.75 bar outlet pressure. A safety shut-off valve (OPSO – 1.0 bar) and a safety relief valve (PRV – 1.4 bar) are mounted on the regulator as safety-related equipment.

A. DETAILED DESCRIPTIONS
1.Safety shut-off valve (OPSO)
The OPSO is open during normal operation and has the task of automatically shutting off the gas flow as soon as the set response pressure is reached. It must be opened manually after closing.

2.Pressure regulator
The pressure regulator reduces the unregulated pressure from the liquid gas container to a fixed outlet pressure.

3.Safety relief valve (PRV)
The PRV is closed during normal operation and is designed to automatically release the gas flow as soon as the pressure in the system has reached the set pressure.
It closes again automatically when the pressure drops below the set pressure.

4.Emergency supply connection
The emergency supply connection can be used to provide a makeshift supply from a gas cylinder by means of a connection hose if necessary.

B. METHOD OF OPERATION
The pressure regulator reduces the unregulated pressure from the liquid gas container in a single stage to nominally 0.75 bar.
In the event of an impermissibly high increase in the outlet pressure at the pressure regulator, the response pressure of the safety shut-off valve (OPSO) is reached, which then closes automatically and shuts off the gas flow upstream of the pressure regulator. The respective operating status of the SAV is indicated on the visual display.

Clear = open
Red = closed

If there is a further increase in pressure, e.g. due to the OPSO not closing completely, the safety relief valve (PRV) automatically releases a limited amount of the gas flow into the atmosphere after the set response pressure has been reached.

ATTENTION ! All activities described in points C, D and E may only be carried out by authorised specialist personnel.

C. ASSEMBLY
The pressure regulator is connected to the extraction valve of the liquid gas container with the POL connection according to DIN 4811-2, using the support device supplied to support it on the container.
It is essential to ensure that the pressure regulator is installed with an inclination of approx. 20° so that the ventilation openings point downwards (see note on the medium pressure regulator).

I M P O R T A N T ! • Only use proper tools for assembly. • When tightening the POL connection, avoid exerting any force on the pressure regulator. • Prevent sealants from getting into the gas-carrying components. • Always counteract threaded connections with suitable spanners. • After assembly, a careful leak test must be carried out.

D. INITIAL OPERATION
Start-up is carried out by slowly opening the extraction valve on the liquid gas container.
If the OPSO has locked, the following steps are required:

• Close the extraction valve on the liquid gas container
• Relieve the pressure on the pressure regulator (on the inlet and outlet ends)
• Twist off the plastic cap of the OPSO
• Pull out the OPSO tappet until it locks into place
• Screw the plastic cap back on
• Slowly open the extraction valve on the liquid gas container

E. FUNCTIONAL TEST OF THE CONTAINER PRESSURE REGULATOR
• Checking the inlet pressure: test connection G1/4 No. 8
• Checking the outlet pressure: test connection G1/8 No. 3
• Set pressure and function test of OPSO/PRV: test connection G1/8 No. 3

During the test, the gas supply must be interrupted and the consumer unit closed. A safe and quick function test can be carried out with the “Müller-test device” A leak test must be carried out after each test.