R200 Series

General

R200

The R200 series pilot-operated pressure reducing regulator is designed for natural gas transmission/distribution systems and industrial/commercial applications. The R200 provides smooth, quiet operation, tight shut-off and long life. It’s internally actuated metal-plug eliminates disadvantages associated with boot-style regulators. The specially designed valve seat is protected from possible erosion caused by gas-flow contaminants. The R200 pressure reducing regulator can be converted into a high-pressure relief valve or backpressure regulator by simply changing the pilot. An optional inlet-strainer prevents large particles from entering the main valve. A pilot supply filter can also be added to keep pipeline debris from entering the pilot.

R286

The R286 is a R200 regulator equipped with a slam shut device, the HSV086.

The HSV086 series consists of a number of effective safety shutoff valves for use in gas transmission systems, gas distribution networks and industrial gas pressure regulating systems. The HSV086 has proven its reliability for decades.

The HSV086 can provide either overpressure or overpressure and underpressure protection by completely shutting off the flow of gas to the downstream system.

Operation

Operation R200

As long as the outlet pressure is above the pilot outlet pressure setting, the pilot plug remains closed. Seat load from the main spring and the inlet pressure bleeding through the restrictor provide a downward pressure to keep the valve in closed position tightly shut off.

When the outlet pressure decreases below the pilot outlet pressure sensing, the pilot plug opens. Loading pressure bleeds downstream through the pilot faster than it can be replaced through the restrictor. This reduces loading pressure on top of the valve plug and lets the unbalanced force, between inlet and loading pressure, overcome the main spring force to open the valve plug.

The R200 can also be used as a pilot operated pressure relief valve or back-pressure regulator.

The valve plug moves in response to the pilot loading pressure to control upstream system pressure. Seat load from the main spring and the inlet pressure bleeding through the restrictor provide a downward pressure to keep the valve in closed position tightly shut off.

                   

Pressure reducing regulator                                       Back pressure regulator

Operation R286

The regulator part is identical to the R200. The HSV086 safeguards against exceeding a maximum pressure and falling beneath a minimum pressure. The protection against under pressure serves also a protection against a diaphragm rupture. Outlet pressure is sensed in the sensing element. When the downstream pressure exceeds the or drops below the set trip value, the integral slam shut valve will close completely. In closed position, the pressure behind the closing member will be reduced to the outlet pressure the pressure difference between inlet and outlet pressure provides an additional closing force to the closing member. Tight shut off is provided by the encapsulated seal ring which closes on the seat ring. The slam shut valve can be reset after equalisation across the closing member manually. Resetting the slam shut valve is facilitated with an integral bypass valve. Maximum and minimum set points are separately adjustable and a wide range of sensing elements and adjusting springs are available.



Operation R286

Features:

• Tight shutoff
  The type R200 uses a metal plug, eliminating the dis-advantages of the boot-style regulator. The proven Gorter specially designed valve seat provides long life due the erosion-free protection of the seat seal. The R200 gives bubble-tight shut off, even at low temperatures.
• Quiet operation
  Using patented techniques and a noise-reduction cage the R200 can reduce noise production to an acceptable minimum. Noise reduction of up to 40dB(A) is possible depending on the user’s environment. Noise reduction is achieved by both multiple stage and multiple flow path techniques resulting in an exceptionally quiet regulator.
• Low maintenance costs
  The unique design of the R200 with its actuated valve plug eleminates the common problems with diaphragm wear and tear. This in combination with a flow path which allows flow through the regulator without seat impingement assures long maintenance intervals.
• O-ring design
  The type R200 uses elastomer O-rings instead of gaskets, reducing maintenance and assembly time.
• Easy maintenance
  Top entry design reduces maintenance time. Internal parts can be inspected, cleaned and replaced without removing the valve body from the pipeline.
• Accurate control
  Multiple outlet pressure ranges and narrow proportial bands offered by various the pilots available for the R200, provide stable and accurate control.

Technical specifications

General

Flow coefficient

Dimensions (mm) and weights (kgf) of the R200

Dimensions (mm) and weights (kgf) of the R286

         

R200                                                                                          R286

Material specifications (Standard)