Model 50BP0 pages

areg13-6 quark 7:A Reg 13-64.qxd

4/9/2007

9:56 AM

Page 25

Model 50BP Miniature Precision Back Pressure Regulator

A
Model
50BP

Features
• Compact size
• Lightweight unit
• High accuracy for precision control
• Polymer construction for corrosive
resistance
• Non-rising adjustment knob
• Manifold mount capability
• Push to connect fittings in all ports
• Separate control chamber isolates the
Diaphragm from the main flow to eliminate
hunting and buzzing

Operating Principles
Downstream pressure is transmitted through
the Aspirator Tube to the bottom of the
Diaphragm Assembly. As long as the
pressure acting on the bottom of the
Diaphragm Assembly produces a force less
than the spring force acting on the top of the
Diaphragm Assembly, the Relief Valve
remains closed. When system pressure
increases, the force on the bottom of the
Diaphragm Assembly increases beyond the
set point. When system pressure increases
beyond the set point, the assembly moves
upward, lifting the Relief Valve from its seat
and vents the downstream air.
If downstream pressure decreases below the
set point, the assembly moves downward
closing the Relief Valve.

Specifications

Catalog Information

Flow Capacity
10 SCFM (17.0 m3/HR) @ 120 psig, [8 BAR], (800 kPa)
system pressure

Catalog Number 5 0 B 1
0
Pressure Range
psig
[BAR]
(kPa)
0-10
[0-0.7]
(0-70) . . . . .
2
.5-30
[0.03-2]
(3-200) . . . .
3
1-60
[0.07-4]
(7-400) . . . .
4
2-100
[0.15-7]
(15-700) . . .
5
Port Tubing Size
1/4” / 6 mm . . . . . . . . . . . . . . . . . . 0
Port Type
Inch . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
Metric . . . . . . . . . . . . . . . . . . . . . . . . . . M
Elastomer
Nitrile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N
Adjustment Type
Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum System Pressure
150 psig, [10 BAR], (1000 kPa)
Sensitivity
5" (12.7cm) Water Column
Ambient Temperature
0oF to +160oF, (-17.8oC to 71.1oC)
Materials of Construction
Body and Housing ..................................Glass Filled Acetal
Valve ............................................................Stainless Steel
Diaphragm ..................................Polymer Reinforced Nitrile

25

K

800-334-8422