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Pneumatic Regulators

Pneumatic regulators, commonly called pressure-reducing valves, maintain constant output pressure in pneumatic air compressors. They do this by automatically cutting off a gas or liquid when it’s at a certain pressure. Most regulators use simple wire coil springs to control the pressure.

The benefits of pneumatic regulators
Pneumatic regulators can provide a quick response and accurate pressure regulation for even the most demanding industrial air preparation applications. They make sure that compressed air in a pneumatic system is not wasted.

Pneumatic regulator applications
Pneumatic regulators are found in many common home and industrial applications, including heating furnaces and gas grills as well as in medical and dental equipment. They're ideal when pressure must be closely controlled, as is the case when dealing with gas.

When installing a pressure regulator, it's important to choose one that is appropriately sized for your particular system. If it's too large it will increase air usage and waste energy. So ensuring the proper sizing and setting of your pressure regulator is crucial for efficient air consumption.
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Part Details Brand Stock Port Connection Minimum Outlet Pressure Maximum Outlet Pressure Maximum Input Pressure Manufacturer Series Pressure Gauge Port Size Port Connection Thread Size Pressure Gauge Port Thread Size Maximum Flow Rate Typical Flow Rate Integral Check Valve Port Connection Thread Standard Minimum Operating Temperature Maximum Operating Temperature Overall Height Overall Dimensions Overall Width Overall Length Pressure Gauge Port Thread Standard Proof Pressure
Pressure regulator c/w integral gauge IMI Norgren 4 G 1/2 0.3bar 10bar 10bar Excelon Plus G 1/8 1/2 in 1/8 in 7500L/min - - G -10°C +60°C 167mm 70 x 74 x 167mm 74mm 70mm G -
Pressure regulator c/w integral gauge IMI Norgren 2 G 3/4 0.3bar 10bar 10bar Excelon Plus G 1/8 3/4 in 1/8 in 7500L/min - - G -10°C +60°C 167mm 70 x 74 x 167mm 74mm 70mm G -
Pressure regulator c/w integral gauge IMI Norgren 0 G 3/8 0.3bar 10bar 10bar Excelon Plus G 1/8 3/8 in 1/8 in 7500L/min - - G -10°C +60°C 167mm 70 x 74 x 167mm 74mm 70mm G -
G1/4 pneumatic miniature regulator Norgren 329 G 1/4 0.3bar 7bar 20bar R07 Rc 1/8 1/4 in 1/8 in 7L/s - Without Check Valve G -34°C +65°C - - - - Rc -
Pressure regulator 20bar in. 1/4""
  • RS Stock No. 537-442
  • Brand SMC
  • Mfr. Part No. ARX20-F02BG
SMC 178 G 1/4 0.05MPa 0.85MPa 2MPa ARX20 Rc 1/4 1/4 in 1/4 in, 1/8 in 60L/min - Without Check Valve G -5°C +60°C - - - - Rc -
G1/8 pneumatic miniature regulator Norgren 167 G 1/8 0.3bar 7bar 20bar R07 Rc 1/8 1/8 in 1/8 in 6.5L/s - Without Check Valve G -34°C +65°C - - - - Rc -
Norgren Pneumatic Regulator G 1/4 Norgren 157 G 1/4 0.3bar 10bar 20bar R72G Rc 1/8 1/4 in 1/8 in 33L/s - Without Check Valve G -34°C +65°C - - - - Rc -
Pressure Regulator G1/4+Gauge 0.5-10bar Aventics 146 G 1/4 0.5bar 10bar 16bar NL2-RGS G 1/4 1/4 in 1/4 in 1500L/min - Without Check Valve G -10°C +60°C - - - - G -
Festo Pneumatic Regulator 1700L/min G 1/4
  • RS Stock No. 121-5660
  • Brand Festo
  • Mfr. Part No. MS4-LR-1/4-D7-AS
Festo 94 G 1/4 0.5bar 12bar 14bar - G 1/4 1/4 in 1/4 in 7500L/min 1700L/min - G -10°C +60°C 117.5mm 40 x 57 x 117.5mm 57mm 40mm G -
IMI Norgren Pneumatic Regulator G 1/2 IMI Norgren 94 G 1/2 0.3bar 10bar 20bar R74G Rc 1/8 1/2 in 1/8 in 105L/s - Without Check Valve G -34°C +80°C - - - - Rc -
G1/4 Modular Air Regulator w/o Bracket
  • RS Stock No. 890-3159
  • Brand SMC
  • Mfr. Part No. AR20-F02-B
SMC 73 G 1/4 0.05MPa 0.85MPa 1MPa - - 1/4 in - 20L/min - Without Check Valve G -5°C 60°C 94mm 40 x 57 x 94mm 57mm 40mm - 1.5MPa
Festo Pneumatic Regulator 1800L/min G 1/4
  • RS Stock No. 121-5659
  • Brand Festo
  • Mfr. Part No. MS4-LR-1/4-D6-AS
Festo 61 G 1/4 0.3bar 7bar 14bar - G 1/4 1/4 in 1/4 in 7500L/min 1800L/min - G -10°C +60°C 117.5mm 40 x 57 x 117.5mm 57mm 40mm G -
SMC Air Regulator G 1/4
  • RS Stock No. 209-187
  • Brand SMC
  • Mfr. Part No. ARX20-F02
SMC 51 G 1/4 0.05MPa 0.85MPa 2MPa ARX20 Rc 1/4 1/4 in 1/4 in 60L/min - Without Check Valve G -5°C +60°C - - - - Rc -
Norgren Pneumatic Regulator G 3/8 Norgren 48 G 3/8 0.3bar 10bar 20bar R72G Rc 1/8 3/8 in 1/8 in 33L/s - Without Check Valve G -34°C +65°C - - - - Rc -
.05-0.85MPa Regulator, G1/4, Panel Mount
  • RS Stock No. 884-6740
  • Brand SMC
  • Mfr. Part No. AR20-F02H-B
SMC 47 G 1/4 0.05MPa 0.85MPa 1MPa - Rc 1/8 1/4 1/8 in 20L/min - Without Check Valve G -5°C +60°C 94mm - 55mm - Rc 1.5MPa
Watson Smith Pneumatic Regulator 300L/min NPT 1/4 Watson Smith 45 NPT 1/4 0.14bar 8bar - Manostat NPT 1/4 1/4 in 1/4 in - 300L/min Without Check Valve NPT -20°C +70°C - - - - NPT -
0.05 - 0.7MPa Regulator, M5 x 0.8 Port
  • RS Stock No. 884-2679
  • Brand SMC
  • Mfr. Part No. AR10-M5-A
SMC 43 M5 x 0.8 0.05MPa 0.85MPa 1MPa - Rc 1/16 M5 x 0.8 1/16 in 20L/min - Without Check Valve Metric -5°C +60°C 58mm - 40mm - Rc 1.5MPa
651 Series Regulator G1/4 0-10bar, Gauge
  • RS Stock No. 136-6290
  • Brand Asco
  • Mfr. Part No. G651AR002GA00H0
Asco 39 G 1/4 0.5bar 10bar 16bar 651 G 1/4 1/4 in 1/4 in - 2060L/min - G -20°C +50°C 103mm 50 x 61.4 x 103mm 61.4mm 50mm G 0.3bar
Festo Pneumatic Regulator 36 → 124L/min Push In 6 mm Festo 39 Push In 6 mm - - 9bar - - - - 124L/min 36 → 124L/min - - 0°C +60°C 63mm 45 x 15 x 63mm 15mm 45mm - -
Asco Pneumatic Regulator 650L/min G 1/4 Asco 38 G 1/4 0.5bar 8bar 12bar 342 - 1/4 in - - 650L/min Without Check Valve G 0°C +50°C - - - - - -
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