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RTJ-SQ Pressure Regulator with Special Noise Reduction Design

A blue RTJ-SQ pressure regulator on a white background.
RTJ-SQ pressure regulator has as a built-in balance valve and a safety shut-off device

RTJ-SQ Pressure Regulator is an indirect-acting regulator. This regulator has a built-in balance valve and a safety shut-off device. It combines pressure control and safety shut off function. RTJ-SQ pressure regulator can reduce the upstream pressure to a steady downstream pressure. When malfunctions, it can limit the downstream pressure within a safe range. It is very safe and reliable.

This product has a special noise reduction design, which can effectively reduce the noise at work. Compared with common gas regulator, it has higher regulative precision and larger flow capacity. RTJ-SQ pressure regulator has superior performance. The internal corrosion-resistant materials ensure its long service life. It has high sensitivity, good accuracy and fast response, besides, its on-line maintenance is very easy and simple. This regulator is widely applied in city gate station, regional regulator station, gas pressure regulator box and pressure regulating cabinet.


  • Inlet pressure range P1: 0.05 - 10MPa.
  • Outlet pressure range P2: 0.001 - 6.4MPa.
  • Accuracy class: AC2.5.
  • Lock up pressure class: SG15.
  • Response time: ≤ 1s.
  • Working temperature: -20°C - +60°C.
  • Shut off accuracy: ±1 of the set value.
  • Nominal pressure: PN1.6, PN2.5, PN4.0, PN6.4, PN10.
  • Nominal diameter: DN25, DN50, DN80, DN100, DN150, DN200, DN250.
  • Flange standard: GB/T9115.2-2010.
The dimensions, structure and flow capacity list of RTJ-SQ pressure regulator
Gas regulator L (mm) Hmax (mm) H1 (mm) Flow capacity(m3/h) Structure
DN25 197 460 300 560 - 15300 A picture shows the structure of RTJ-SQ pressure regulator.
DN50 267 495 310 1800 - 48000
DN80 318 580 325 2200 - 79200
DN100 368 660 350 5600 - 142800
DN150 473 750 380 9600 - 280200
DN200 660 800 490 12800 - 200000
DN250 740 930 540 18000 - 110000

Applicable medium:

Natural gas, manufactured gas, liquefied petroleum gas and other non-corrosive gases distribution. (when corrosion resistant performance is required, the anti-corrosion materials can be chose.)


  • Indirect-acting.
  • Safety shut-off device
  • Efficient noise reduction design.
  • High regulative precision.
  • Excellent flow capacity.
  • High lock up pressure class.
  • Space saving.


  • Used in gas transmission and distribution system.
  • Used in city gate station and regional regulator station.
  • Applied in gas pressure regulator box and cabinet.
  • Used in industrial pressure control system.