Instrumentation
Pressure Regulators
Regulator – Compact Precision   3550 Regulators – Miniature 14R
1/4" – Basic 1/4" Body
1/8", 1/4" – Basic 1/8" Body
Adjusting knob. Unbalanced poppet standard.
Diaphragm design for good  Solid control piston with lip seal
repeatability,response and sensitivity. for extended life.
Two full flow gauge ports. Non-rising adjusting knob.
High flow capacity; flows of 40 SCFM Compact, 3.14 inch (79mm) high
Downstream pressure buildup,down by 1.65 inch (42mm) wide.
to 0.01 PSIG above the set pressure,  High Flow: 1/8" – 13 SCFM
is automatically vented . 1/4" – 15 SCFM
Regulators – Miniature (Water Service) 20R Regulators – Economy  05R
1/8", 1/4" – Basic 1/8" Body 1/4", 3/8" – Basic 1/4" Body
Pressure Rating - Max.  0 to 300 PSIG Secondary aspiration plus balanced 
Standard Pressure  2 to 125 PSIG poppet provides quick response and 
Medium Pressure  1 to 60 PSIG accurate pressure regulation.
Low Pressure  1 to 15 PSIG Maximum Primary Pressure  250 PSIG 
Temperature Ratings  32°F to 125°F Temperature Rating  32°F to 175°F
Weight  0.5 lb. (0.23 kg) Bonnet Assembly Kit -- PS915P
Adjusting Nut & Stem -- Steel Control Knob -- P04420
Seals, Diaphragm -- Buna N Weight  1.1 lb. (0.49 kg)