The general purpose two stage regulators are recommended for control of inert and non-corrosive pure gases in laboratories, general plant and maintenance shops where constant delivery pressures are required. These regulators are not recommended for applications where inboard diffusion of air or outgassing of elastomeric components would adversely affect the work being done. A preset safety relief valve vents to atmosphere, which makes this regulator suitable for only nonhazardous gases.



DESIGN FEATURES
  • Filtered seat for added gas stream purity and extended service life.
  • Large 1-3/4" diaphragm for precise control of pressure.
  • Large 2-1/2" easy to read single scale gauges.
  • Rugged brass construction with bar stock body.
  • Built in capturable preset safety relief valve.
  • Plated body, bonnet and gauges for superior protection.


SPECIFICATIONS

 
Maximum Inlet Pressure...............3000 PSIG
Outlet Pressure Ranges.....0-15, 0-50, 0-100,
                                                  0-250 PSIG
Temp. Operating Range........-40oF to +165oF
Ports (4)........................................1/4"FNPT
Outlet Valve........................1/4"Needle Valve
Design Leak Rate........................Bubble tight
                                          (1x10-5css Helium)
Flow Coefficient Cv.................................0.20
Inlet Decay Rate...................  .042/100 PSIG
Weight....................................................5 lbs
MATERIALS OF CONSTRUCTION
Body.........................Electroless Nickel Plated
                                              Brass Bar Stock
Bonnet 1st Stage........Electroless Nickel Plated
                                              Brass Bar Stock
Bonnet 2st Stage........Electroless Nickel Plated
                                                  Brass Forging
Seat.......................................................Teflon
Seat Retainer...........................................Brass
Diaphragm........................................Neoprene
Gauge............................2-1/2" Chrome Plated
Filters (2).................316 Stainless Steel / Brass
Valve Stem.........................316 Stainless Steel
Valve Spring.......................316 Stainless Steel
Outlet Valve....................Chrome Plated Brass


ORDERING INFORMATION FOR 120 SERIES REGULATORS
Product Number
Max
Inlet
Pressure
PSIG
Max
Outlet
Pressure
PSIG
Inlet Gauge
Delivery Gauge
Range PSIG
Graduations PSIG
Range PSIG
Graduations PSIG
120
3000
15  
0-3000
100
 0 - 30
1
121
3000
50  
0-3000
100
 0 - 60
2
122
3000
100
0-3000
100
 0 - 200
5
123
3000
200
0-3000
250
 0 - 400
10




Choose your configuration
Regulators:
Outlet Fittings:
CGA Inlet Fittings:

* Only available for use with the 120 body





On Orders Over $200.00, U.S Orders Only

Prices subject to change
Some products not kept in stock
Last update 13 December 2008