Owner manual

ManualsBrandsPilgrim ManualsMeasuring instrumentsPressure Regulators Type 70

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 SPECIFICATIONS & 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 -40º to 200º F (-40º to 93º C) -40º 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

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