User Manual

© CONDEC 2001 • All rights reserved • Printed in the United States of America • Specifications subject to change without notice
March 2001
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Orion -2C
Pneumatic Pressure Controller
ORION -2C Pneumatic Pressure Controller
Part #55283, Patent No. 4.698.998
SPECIAL FEATURES:
Orion-2C is a variable volume pressure controller with on operating pressure from vacuum
to 3000 psi. It consists of two low torque, fine micro-metering valves with positive shut-
off, adjustable stop and soft seat. The pressure valve controls the inlet pressure and the
other valve vents to atmosphere.
The vernier is located at the center of the controller and allows the operator a very fine
pressure adjustment (approx. ±5% point max.) without using the pressure or vent valve.
Selecting the appropriate O-ring material may extend the wide range of gas applications.
There is one inlet, one outlet, and two test ports. One test port may be used to connect a
pressure transducer or pressure gage standard; the other test port may be used to
connect the unit under test.
OPERATION:
The pressure valve will begin to open when it is turned counter clockwise, approximately
15 degrees. Full open position of the valves is achieved with a maximum of 3 1/2 turns
fr om the closed position. Use the pressure/vent valves to achieve ±95% of the target
pressure. The pressure and vent valves must be closed before operating the vernier. The
vernier is a piston and cylinder configuration, which generates ±5% pressure, or vacuum
of the indicated pressure. The vernier has a fine adjustment sensitivity of .0005 psi. Very
low torque is required to turn the vernier... FINGERTIP ADJUSTMENT EVEN AT
3000 psi!!!!!
SPECIFICATIONS:
Pressure Range: 0-3000 psi and vacuum
Proof Pressure: 3500 psi
Pressure & Vent Valve Orifice: 0.032
CV: 0.007
Mechanical Rotation: 3 1/2 turns (nom.)
Vernier Volume: 1/2 cubic inch (nom.)
Mechanical Rotation: 16 turns (nom.)
Adjustable sensitivity: 0.0005 psi
Torque: Fingertip adjust (even at 3000 psi)
Construction: Aluminum body clear anodize aluminum knobs, black anodize all other parts 300 series
stainless O-rings Buna-N standard, others available. (All stainless steel construction available for use with
corrosive gases and/or high pressure up to 10,000 psi. Refer to model: Orion 3A pressure controller.)
Weight: 3.0 Lbs.
O-ring repair kits: Buna-N (standard) (part #58499); Ethylene-Propylene (part #58506);
Silicone (part #58509); Neoprene (part #58515); Fluorocarbon “Viton” (part #55277).
Note: Various O-ring materials may be installed in Orion-2C by special order.
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