Delta Elektrogas R-RS -100 Medium Pressure Gas Regulators

The R type is a high-pressure regulator for gas according to EN 334. It is available also with a safety shut-off valve which blocks gas flow in event of outlet pressure being too low or too high, in accordance with EN 14382. This device is suitable for supplying gas at stable pressure to all the devices downstream and protecting them against excess pressure.


  • R series pressure regulators are direct-acting spring-loaded regulator types, controlled by a diaphragm and spring. The balanced valve design ensures constant pressure setting when
    upstream pressure varies.
  • RS version is an R regulator with an integrated safety shut-off device against abnormal outlet pressure. The shut-off-valve system is independent of regulating device, to assure a high level of
  • Regulators are available with inlet/outlet connections from DN25 (1”) to DN50 (2”).
  • Regulators are manufactured in three different versions in relation to outlet pressure: LP (outlet 15-160 mbar), MP (outlet 150-400 mbar), and HP (outlet 400-4000 mbar). In any version,
    components are optimized to achieve the best performances
  • The body of the regulators is made of spheroidal graphite cast iron and the covers are made of aluminum cast alloys for suitable strength with pressure.
  • The regulators are equipped with adjustable springs, so that outlet pressure, overpressure, and under pressure can be set on-site in a very precise way.
  • Regulators are equipped with internal pulse lines. An additional external pulse line can be mounted to reach the best capacity performance.
  • Regulators have been designed to generate low-pressure drops with high flow.
  • Sealings are made of NBR-based rubber. Regulators are suitable for use with non-aggressive gases included in the 1, 2, and 3 families (EN 437).
  • All components are designed to withstand any mechanical, chemical, and thermal conditions occurring during typical service. Effective impregnation and surface treatments have been used to improve mechanical sturdiness, sealing, and resistance to corrosion of the components.


ConnectionsGas threaded f/f ISO 7-1 from Rp1 to Rp2
Flanged PN16 – ISO 7005 DN25 - DN50 (on request)
NPT ANSI ASME B1.20 (on request)
Ambient temperature-20°C ... +60°C
Inlet pressure0,5 - 10 bar
Design pressure20 bar
Regulating class
AG 5 / 10 depending on outlet pressure
SG 20 for lock-up (+7.5mbar or +20% of the set value, at least)
InstallationHorizontal or vertical pipeline.
Gas typeNatural gas, town gas, LPG (gaseous) of families 1,2,3 (EN437).
Materials in contact
with gas
Spheroidal graphite cast iron, Aluminum, Brass, Steel,
Anaerobic adhesive, Nitrile rubber (NBR), Fluoroelastomer (FPM)

Download Datasheet: Delta Elektrogas R-RS-100