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Table of Contents
SM-800.6505
HC-2 CONTROLAIR
Service Information
Description of Models
The HC-2 Type Controlair Valves are handle
operated 4-way, exhausted center, pressure
control valves.
The typical unit contains two directional control
3-way side valves and a pressure graduating
portion that is arranged to increase, decrease
or maintain air pressure to (2) separate delivery
lines. In neutral position both 3-way side valves
exhaust both delivery lines. A movement of 10
degrees either side of center position opens
the appropriate side valve and directs pressure
to the indicated outlet port. Continued move-
ment past 10 degrees up to full travel or 46
Page
degrees either side of neutral continues to ac-
tuate the pressure-graduating portion to deliver
1
2
a graduated pressure according to the value of
2
the control spring.
2
2
Models
3
There are four models with similar valve func-
4
tions, but different handle operating character-
5
istics.
6
HC-2-X Controlair Valve -Handle is spring
7
returned to neutral position from all positions in
8
9
the handle travel. Some special models exist.
10
See notes on Identity schedule on page 7.
HC-2-LX Controlair Valve - Handle is spring
11
returned to neutral position from all positions
11
except at the maximum pressure setting on
11
both sides of center. The handle is held in both
11
extreme positions by a mechanical detent.
11
HC-2-FX
11
11
equipped with a friction brake that will hold the
12
handle in any position selected in the handle
travel.
HC-2-SX Controlair Valve - Handle holds in
only one maximum pressure position. The han-
dle is spring returned to neutral position from
all other positions in the handle travel. The
valve can be ordered to hold in either extreme
position.
®
VALVE
Controlair
Valve
-
Handle
is
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Table of Contents
Related Manuals for Aventics CONTROLAIR HC-2 Series
Summary of Contents for Aventics CONTROLAIR HC-2 Series
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Page 1: Table Of Contents
® HC-2 CONTROLAIR VALVE Service Information Description of Models The HC-2 Type Controlair Valves are handle operated 4-way, exhausted center, pressure control valves. The typical unit contains two directional control 3-way side valves and a pressure graduating portion that is arranged to increase, decrease or maintain air pressure to (2) separate delivery lines. -
Page 2: Warnings
Installation and General Maintenance Recommendations GENERAL MAINTENANCE AND REPAIR WARNING: INSTALLATION AND MOUNTING The user of these devices must conform to all RECOMMENDATIONS applicable electrical, mechanical, piping and other codes in the installation, operation or re- Maintenance periods should be scheduled in accor- pair of these devices. -
Page 3: Outline Dimensions
Outline View ® HC-2 Controlair Valve Page 3... -
Page 4: Descriptions Of Operation
Description of Operation ® For HC-2 Controlair Note in the diagrammatic view that supply pressure is connected to port (2) and this supply pressure is directed only to the pressure- graduating portion. The delivery from the pressure graduating portion encounters plugged port (8) (a pressure gage can be connected at this port) and continues to become the supply air to each of the side valves. -
Page 5: Maintenance And Repair
Repair and Maintenance Instructions Repair and Maintenance Instructions Graduated Output Pressure Adjustments ® When it has been determined that the Controlair Valve Adjusting screw Item #40 varies the maximum pressure requires repairs, the following general instructions are rec- setting. Turning the adjusting screw in raises the maximum ommended. -
Page 6: Graphical Symbol
DIAGRAMMATIC VIEW VALVE SYMBOL LEGEND - PIPE BRACKET 2 - SUPPLY-IN ® HC-2 CONTROLAIR VALVE 8 - GRADUATED-DELIVERY 1 - SIDE VALVE-DELIVERY 3 - SIDE VALVE-DELIVERY NEUTRAL FULL TRAVEL FULL TRAVEL 10° 10° DUAL CAM ADJUSTING SCREW ADJUSTING SCREW SIDE VALVE (3-WAY) SIDE VALVE (3-WAY) INLET &... -
Page 7: Identity Schedule
HC-2 IDENTITY SCHEDULE Model Control New Cam Old Cam Portion New Valve Old Valve Remarks Complete Complete Pressure Control Control Spring Part Number Part Number Part Number Part Number Part Number Part Number Range (PSI) Spring P/N & Code (Ref. # 29) *Complete *Complete **Complete... -
Page 8: Exploded View
EXPLODED VIEW HC-2-X CONTROLAIR® HC-2-LX CONTROLAIR® HC-2-SX CONTROLAIR® HC-2-FX CONTROLAIR® Stainless Steel Handle 28 27 P/N - R431006913 (P –066891-00000) Pipe Bracket Portion Complete (Ref. 1,2,3, 4) NOTE: SEE PAGE 9 FOR PART NUMBERS SEE PAGE 10 FOR REPAIR KITS MATCHED / LAPPED SET OF ITEM 34 &... -
Page 9: Part List
® HC-2 Controlair Valve Parts List Ref. Qty. Description New HC-2-X Old HC-2-X New HC-2-LX Old HC-2-LX New HC-2-SX Old HC-2-SX New HC-2-FX Old HC-2-FX Complete Device P –050975-0000X P –055582-0000X P –051206-0000X P –050976-0000X Pipe Bracket R431006882 P –066812-00005 R431006882 P –066812-00005 R431006882... -
Page 10: Repair Kit List
® Repair Kits for HC-2 Controlair Valves Quantity New Part Number Old Part Number Description per valve R431003895 P -055687-00000 Minor Graduating Valve Portion-Repair Kit Note 1 includes items 25, 29, 34, 35, 36, 37, 39 & 42 R431004005 P -057136-00000 Major Graduating Valve Portion-Repair Kit Note 1 includes items 2, 3 &... -
Page 11: Testing
To test the valve for function, pressure range and the spring range. Move the handle in either direction directional output if using an AVENTICS “D” Pilotair to the full travel position and hold . Then close the Valve place handle in position 1.To test for leakage place supply line to port #2 (or move the handle of PD- handle in position 2. -
Page 12: Test Diagram
Test Arrangement Diagram Notes: ® 1. AVENTICS Taskmaster Timing Volumes, part number R434002899 (TM–058887-00225) can used for the volumes indicated. 2. The supply air line to the valve and the delivery lines must be full size as shown. Line must not exceed 3 Ft. - Page 13 No charge will be made for labor with respect to defects covered by this Warranty, provided that the work is done by AVENTICS or any of its authorized service facilities.