Pilgrim Pressure Regulators Type 70 - Manual (Page 3)

FEATURES
• High flow capacity - Up to 80 SCFM (2266 LPM)
• Responds quickly to minute changes in downstream pressure
• Dampening action of aspirator tube maintains downstream pressure
• Balanced supply valve minimizes the effect of supply pressure changes
• Bellofram’s Buna-N and polyester rolling diaphragms are designed to
provide millions of cycles
• Honking & buzzing eliminated by action of integral baffle and aspirator tube
• Stack up construction can be disassembled and serviced without removal
from air line
DESCRIPTION
The Type-70 Regulator is specifically designed for applications that require
substantial flow capacity and accurate pressure controls. Flows of 80 SCFM
(2250 LPM) can be attained. Downstream pressure can be set within 0.25 in.
(6.3mm) of water column and is accurately maintained under varying flow con-
ditions with the help of an aspirator tube which adjusts the air supply in accor-
dance with the flow velocity. A balanced supply valve, utilizing a rolling
diaphragm, makes the regulator virtually immune to changes in supply
pressure.
The Type 70 has a rugged precision die-cast aluminum hous-
ing, and is pressure-tested and chromate-treated for internal
corrosion resistance. The regulator housing is finished with
vinyl paint which resists scratching, weathering and
other physical abuse.
FEATURES
• High flow Capacity - Up to 50 SCFM (1400 LPM)
• Responds quickly to minute changes in upstream pressure
• Bellofram’s Buna-N and polyester rolling diaphragms are designed to give
millions of cycles
• Stack up construction can be disassembled and serviced without removal
from air line
DESCRIPTION
The Type-70 Back-Pressure Regulator functions as a high flow, high precision
pneumatic relief valve with an adjustable setpoint. The Type-70BP can be used
in place of a standard relief valve to improve pressure control while maintain-
ing protection against over pressurization, as in supply pressure lines to instru-
ments and other control devices.
It is most often used in conjunction with a diaphragm-operated valve and bleed
orifice as a compressor controller. Excess compressor pressure is relieved
through the regulator to actuate the intake restricting valve. When the regulator
is shut off, downstream air escapes through the bleed orifice, allowing the
restricting valve to open.
T-70 SPECIFIC
A
TIONS & DIMENSIONS
TYPE 70 TYPE 70BP
Regulator Regulator
Sensitivity 1/4" (6.4 mm) Water Column 1/8" (3.2 mm) Water Column
Flow Capacity 40, 50, or 80 SCFM 50 SCFM
(1113, 1416, 2266 LPM) (1416 LPM)
Effect of Supply Pressure variation (25 psig) < 0.025 psig (1.7 BAR) N/A
on Outlet Pressure
Exhaust Capacity (5 psig above 20 psig set point)
4 SCFM (113 LPM) N/A
Maximum Input / Supply Pressure 250 psig (17.2 BAR) 250 psig (17.2 BAR)
Effect of Changes in Flow on Regulated Pressure 2.5 psig (0.2 BAR) over flow 50 SCFM (1416 LPM) N/A
(100 psig/6.9 BAR Supply) (3/8" NPT, 0-30 psig / 0-2.1 BAR range,
15 psig / 1 BAR set point)
Output Pressure Ranges (Type 70) 0-2 psig, 0-10 psig, 0-30 psig, N/A
1-60 psig, 2-150 psig, 3-200 psig
0-0.1 BAR, 0-0.7 BAR, 0-2.1 BAR, 0.1-4.1 BAR
0.1-10.3 BAR, 0.2-13.8 BAR
Set Point Ranges (Type 70BP) N/A 0-2 psig, 0-10 psig, 0-30 psig,
0-60 psig, 0-150 psig
0-0.1 BAR, 0-0.7 BAR, 0-2.1 BAR,
0-4.1 BAR, 0-10.3 BAR
Total Air Consumption @ Maximum Output from 1.0 to 12.5 SCFH (0.5-6 LPM) N/A
Temperature Range -40 º to 200º F (-40º to 93º C) -40 º to 200º F (-40º to 93º C)
Port Size 1/4", 3/8", 1/2" NPT, BSPT 1/4", 3/8", 1/2" NPT, BSPT
Size 3.0" X 3.0" X 6.0" (76 X 76 X 152 mm) 3.0" X 3.0" X 6.0" (76 X 76 X 152 mm)
Weight 1.41 lb. (0.6 kg) 1.5 lb. (0.7 kg)
Materials of Construction Body: Diecast aluminum with vinyl paint Body: Diecast aluminum with vinyl paint
Adjusting Screw: Plated steel Adjusting Screw: Plated steel
Trim: Plated steel, brass, acetal resin Trim: Acetal, brass, plated steel, nitrile
Diaphragm: Buna-N with polyester fabric Diaphragm: Buna-N with polyester fabric
Knob: Phenolic plastic Knob: Phenolic plastic
Spring: Music wire Spring: Music wire
Preset Pressure No No
Tamper-Resistant Cover Yes Yes
Mounting Pipe, panel, or bracket Pipe, panel, or bracket
PRECISION CONTROL DEVICE
Type-70 High Flow
Air Pressure Regulator
Dimensions for Type-70
& Type-70BP
Type-70 High Flow Back
Pressure Air Regulator
psig BAR
90 6.2
80 5.5
70 4.8
60 4.1
50 3.4
40 2.8
30 2.1
20 1.4
10 0.7
0 0
SCFM 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0
LPM 0 300 575 850 1150 1400 1700 2000
Flow
TYPE 70BP: REGULATED PRESSURE VS. FLOW
psig BAR
90 6.2
80 5.5
70 4.8
60 4.1
50 3.4
40 2.8
30 2.1
20 1.4
10 0.7
0 0
SCFM 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0
LPM 0 300 575 850 1150 1400 1700 2000 2265
Flow
TYPE 70: REGULATED PRESSURE VS. FLOW
REGULA
TED (
set
) PRESSURE
REGULA
TED (
set
) PRESSURE