R/RS and 210 gas pressure regulators with balanced valve, Rp 3/8 – DN 100, inlet up to 85 kPa

Country: Germany · Model: R/RS / 210

Gas pressure regulators R400S, R500S, R600S (Rp 3/8 – Rp 1, inlet up to 36 kPa) and 210D, 210E, 210G, 210J (Rp 1 – DN 100, inlet up to 85 kPa) with a balanced valve. Outlet pressure is almost independent of pressure fluctuations in the network. They are used on gas boilers, steam generators, industrial furnaces and drying chambers.

R/RS: R400S, R500S, R600S; Rp 3/8 – Rp 1; inlet up to 36 kPa; double diaphragm
210: 210D, 210E, 210G (Rp 1 – Rp 3), 210J (DN 100, PN 16); inlet up to 85 kPa; lockup at zero flow
Damping (210): built-in damper in the vent and impulse tube
Body: aluminium; internal parts of steel, aluminium, brass, elastomer

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Technical specifications

R/RS	R400S, R500S, R600S; Rp 3/8 – Rp 1; inlet up to 36 kPa; double diaphragm
210	210D, 210E, 210G (Rp 1 – Rp 3), 210J (DN 100, PN 16); inlet up to 85 kPa; lockup at zero flow
Damping (210)	built-in damper in the vent and impulse tube
Body	aluminium; internal parts of steel, aluminium, brass, elastomer
Index S	nitrile rubber valve on aluminium
Mounting	R/RS: any position; 210: vertical only
Ambient temperature	−15…+80 °C
Standards	Regulation (EU) 2016/426, EN 88-1; gases per EN 437
New	R700 (1" and 1 1/4" NPT): regulator for high-capacity appliances

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

R/RS have two diaphragms, a regulating one and a balancing one, so the force of inlet pressure on the valve is compensated. They are fitted on both the main burner and the pilot line. R400S, R500S and R600S have threads per ISO 7-1 / EN 10226-1. The 210 series has lockup at zero flow and consists of 210D (Rp 1 – Rp 1 1/2), 210E (Rp 1 1/2 – Rp 2), 210G (Rp 2 1/2 – Rp 3) and the flanged 210J DN 100 per ISO 7005-2, PN 16. The bodies are aluminium, internal parts are steel, aluminium, brass and elastomers; R/RS are mounted in any position, while 210 only vertically. Ambient temperature is from −15 to +80 °C, and vent limiters 12A04 and 12A39 are available. Certification is per Regulation (EU) 2016/426 and EN 88-1. The 2024 range was supplemented by the R700 regulator with 1 and 1 1/4 NPT (ISO 7-1) connections for high-capacity appliances.

How to choose

R/RS are taken when inlet pressure fluctuates and flow is small, up to Rp 1, and 210 where higher flow and lockup are needed, up to DN 100. For mixing gas with air there are RZ, 210Z and R700Z, and for still higher flow and higher outlet pressure the pilot-operated regulator 220, 1–4 inches and inlet up to 69 kPa.

Request a price and lead time

R/RS and 210 gas pressure regulators with balanced valve, Rp 3/8 – DN 100, inlet up to 85 kPa. We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

How does R/RS differ from the 210 series?

R/RS has two diaphragms, threads up to Rp 1 and inlet up to 36 kPa. The 210 series is designed for larger flows, connections from Rp 1 to Rp 3 and DN 100, inlet up to 85 kPa and lockup at zero flow.

Why is the outlet pressure of R/RS independent of network fluctuations?

The balancing diaphragm compensates the force of inlet pressure on the valve, so outlet pressure practically does not react to changes in supply pressure.

How should R/RS and 210 regulators be mounted?

R/RS allow any position, 210 only vertical.

What was added to the 2024 range?

The R700 regulator with 1 and 1 1/4 NPT (ISO 7-1) connections for appliances that need high capacity.

What is the damper in the 210 series for?

The damping mechanism in the vent outlet and the impulse tube improves regulation stability and reduces the tendency to self-oscillation.