MIL-HDBK 1028/6A
SYMBOL
COMPONENT DESCRIPTION
V10
CLOSING SPEED CONTROL VALVE.
SIMILAR TO V9.
3/8 IN. NPT
PORTS. MIN Cv = 0.60.
V11
START-LOCKOUT PRESSURE ADJUSTMENT VALVE.
SIMILAR TO V9,
1/4 IN. NPT PORTS. CvMIN = 0.30.
V12
PRIMARY REGULATOR ISOLATION AND EXHAUST VALVE. THREE-WAY,
TWO-OUTLET BRONZE SPOOL VALVE, WITH AIR PILOT AND SPRING
RETURN. 1/4 IN. NPT PORTS. CvMIN = 1.2. EQUAL TO VERSA
VSP-7302. W/DUST EXCLUDER AT EXHAUST.
V13
BLOW-OFF VALVE.
1/2 IN. BALL VALVE W/CAP AND CHAIN.
V14
UTILITY AIR SHUTOFF VALVE. 1/2 IN. NPT BRONZE BALL VALVE,
WITH LEVER HANDLE. WIDE OPEN Cv = 9.0.
V15
UTILITY AIR PRESSURE REGULATOR. 100 SCFM AT 130 PSIG INLET.
5 PSI PRESSURE DROP. SPRING-LOADED DIAPHRAGM TYPE, ADJUSTABLE,
NON-BLEED RELIEVING.
V16
CONTROL TRAY SUPPLY AIR ISOLATION VALVE.
SAME AS V14.
ONLY 3/4 IN.
V17
OUTPUT LINE SURGE RELIEF VALVE.
SET 90 PSIG.
DISCHARGE 1200
SCFM TO ATMOSPHERE AT 100 PSIG.
2 IN. NPT.
V18
PRIMARY PRESSURE REGULATOR (FOR V2), AIR LOADED, 1 IN. CAST
IRON BODY, NEOPRENE DIAPHRAGM, BUNA-N VALVE DISC. HIGH
PRESSURE VERSION 1/4 IN. ORIFICE.
F1
UTILITY AIR FILTER. 100 SCFM AT 125 PSIG, WITH 5 PSI INITIAL
PRESSURE DROP, METAL BOWL. AUTO DRAINER, 1/2 IN. NPT PORTS.
5 MICRON ELEMENT. 3/4 IN. NPT.
F2
CONTROL AIR FILTER, 100 SCFM AT 100 PSIG WITH 5 PSI INITIAL
PRESSURE DROP, METAL BOWL, AUTO DRAINER. 1/2 IN. NPT PORTS.
5 MICRON ELEMENT.
C1
CONTROL TRAY SUPPLY AIR CONNECTOR. GALVANIZED MALLEABLE IRON
PIPE UNION. 150 POUND. BRASS SEAT, NUT TYPE WITH BUNA-N
O-RING.
C2
CONTROL TRAY SENSING/BLOWDOWN CONNECTOR.
1 IN. NPT.
Figure 14 (Continued)
Aircraft Service Mechanical Symbols
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