Peter Skop Industries

Compressed Gas Division

RegO1780 Series Heavy Duty Gas Line Regulator

The 1780 Series Regulators are designed for final line pressure regulation on gas distribution systems. They are suitable for a variety of gases in medical or industrial applications. The 1780 Series Regulators have a balanced seat, are constructed with oxygen compatible materials, and have the same valve design, brass body, and internal parts as the premium BR-1780 Series. Flow performance is likewise equal to the BR-1780 Series.

Features

 Maintains a steady downstream pressure across a range of inlet pressure commonly provided by a cryogenic bulk tank.

 Large seat and diaphragm areas provide high capacity with sensitive control of delivery pressure with low falloff.

 Two 1/4" FNPT delivery pressure gauge ports are located (plugged) on each side of the valve.

 Two bonnet drain/vent holes to allow for different mounting orientation.

 T-handle adjusting screw.

 Maximum inlet pressure is 400 psig.

 Available in three delivery pressure ranges.

 Temperature range: -40 F to 165 F.

 Cleaned per CGA G-4.1 for oxygen service.

 

Materials

Body.............................................................Forged Brass

Bonnet ........................................Nickel Plated Aluminum

Diaphragm ......................................Nitrile with PTFE liner

Springs and fasteners................................Stainless Steel

Other valve parts......................................................Brass

Seat Disc & O-Rings ..............................Viton is standard

For Carbon Dioxide or Nitrous Oxide service: Specify EPDM material for seat disc and O-rings, add “E” to end of part number.

 

Dimensions

The 1780 Series Regulators have inlet and outlet connection dimensions similar to the popular 1680 Series aluminum regulators. This means that you can replace the respective size 1680 Series regulator with the new 1780 Series regulator and have the improved balanced seat performance.

Ordering Information

*Regulator sold without gauge.  Order gauge separately.

Part Number

Delivery Pressure

Pressure Gauge* Range

Inlet & Outlet

Dimensions

Cv

 

Range

PSI

P/N

(F.N.P.T.)

“A”

“ B”

“C”

“D”

 

1784A

5-55 psig

1-100

1286

1/2"

2.82”

3.62”

1.38”

5.47”

3.1

1784B

40-110 psig

1-200

S1679

1/2"

2.82”

3.62”

1.38”

5.47”

3.1

1784C

100-200 psig

1-400

15578

1/2"

2.82”

3.62”

1.38”

5.47”

3.1

1786A

5-55 psig

1-100

1286

3/4”

3.31”

4.69”

1.60”

6.84”

4.8

1786B

40-110 psig

1-200

S1679

3/4”

3.31”

4.69”

1.60”

6.84”

4.8

1786C

100-200 psig

1-400

15578

3/4”

3.31”

4.69”

1.60”

6.84”

4.8

1788A

5-55 psig

1-100

1286

3.31”

4.69”

1.60”

6.84”

5.5

1788B

40-110 psig

1-200

S1679

3.31”

4.69”

1.60”

6.84”

5.5

1788C

100-200 psig

1-400

15578

3.31”

4.69”

1.60”

6.84”

5.5