Technical information

TM
Equipment
www.purityplusgas.com
77
Materials Specifi cations
Description Advanced Features Typical Applications
single stage, low delivery pressure regulator Series 3700HP
These regulators were designed to meet
the needs of applications requiring reliable
low-pressure control while maintaining gas
purity. They are available in single and two
stage versions to meet most non-corrosive
gas applications. The low pressure stage has
a large sensitive aluminum-faced neoprene
diaphragm to provide delivery pressures as
low as 2” of water.
• Extremely low delivery pressures.
• Knob for adjusting delivery pressure.
• Aluminum faced diaphragm for high
purity applications.
• Maximum inlet pressure 250 psig.
• Diaphragm packless valve on outlet is
standard.
The Series 3700HP regulators are available
in two delivery pressure ranges; 2-35” of
water, and 0.5-5 psig. As a line regulator
they have a maximum inlet pressure rating
of 250 psig. Inlet and outlet connections are
1/4” NPT female. The series 3700HP has an
aluminum faced natural rubber diaphragm
to provide a diffusion resistant metal barrier
for high purity gas applications.
Body & Bonnet
Zinc
Seat
Nitrile
Diaphragm
Aluminum-faced natural rubber
Internal parts
Steel, brass and zinc
Ordering Information
Model Number
Del. Press. Range
psig
Del. Press. Gauge
psig
Inlet Press. Gauge
psig
3701HP
3702HP
2-25” water
0.5-5 psig
0-30” water
0-10 psig
none
none