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Aventics PILOTAIR 2-CA-1A, Service Information

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FIGURE 1: Block Type PILOTAIR Valve 
 Assembly View. 

 
 
Refer  to  Figures  1  and  2.  With  no  mechanical 
force  on  the  plunger  as  shown,  the  valve  disc 
seats  on  the  inlet  valve  seat  and  seals  the  pas-
sage  from  the  inlet  to  the  outlet  port.  The  outlet 
port is vented to atmosphere through the center of 
the plunger. As the plunger is forced downward by 
an  external  force  it  seats  on  the  valve  disc.  This 
seals  the  passage  between  the  outlet  port  and 
atmosphere. 
Further  downward  travel  of  the  plunger  unseats 
the valve disc from the inlet valve seat and allows 
inlet air pressure to flow to the outlet port. 
Release  of  the  external  force,  releases  the 
plunger and valve, and plunger return to the 
original position. 

Install  the  valve  to  ensure  operation  within  the 
travel  limits  shown  on  the  outline  drawings. 
Travel beyond these limits can cause damage to 
the valve. 

All combinations of the Block Type “A” PILOTAIR 
Valve  are  “normally  closed”  except  that  desig-
nated 2-CA-1B which is “normally open.” 
 

Maintenance 

Disassembly 

Refer to Figure 2. Completely disassemble the valve 
in sequence shown. 

NOTE:  Strainers  are  easily  damaged.  Do  not 
remove from IN ports of valve body. 

Cleaning 

1. Clean  the  body,  with  strainers  intact,  and 

all  other  metal  parts  with  a  nonflammable 
solvent. 

2. Wash all rubber parts with soap and water. 
3. Rinse parts thoroughly and blow dry with a 

low-pressure air jet. 

4. Inspect  all  parts  and  replace  those  which 

are worn or damaged. 

 

T H E  

N E W  

V A L V E  

D E S I G N  

I S 

INTERCHANGEABLE  WITH  THE  FORMER 
DESIGN. 
 

Reassembly 

Refer to Figures 1 and 2, and cartridge valve (4). 

1. The  valve  assembly  (4)  is  a  cartridge 

design  to  simplify  repairs  and  eliminate  
problems to improper assembly. 

2. Lubricate 

all 

metal-to-metal 

contact 

surfaces with Number 107 Lubriplate. 

3. Lubricate  all  rubber  parts  with  Dow 

Corning No. 55 Pneumatic Grease. 

4. After  reassembly  is  complete,  install  the 

operator and test for correct operation and 
any evidence of leakage. 

Adjustment 

The  Block  Type  “A”  PILOTAIR  Valve  requires  no 
adjustment after reassembly. 

 

AVENTICS “A” PILOTAIR

®

 VALVE SERVICE INFORMATION 

Page 2 

 

 

Summary of Contents for PILOTAIR 2-CA-1A

Page 1: ...hese products when a system is under pressure Always exhaust or drain the pressure from a system before performing any service work Failure to do so can result in serious personal injury MOUNTING Devices should be mounted and positioned in such a manner that they cannot be accidentally operated Installation BLOCK TYPE The Block Type A PILOTAIR Valve can be installed in any convenient position with...

Page 2: ...at desig nated 2 CA 1B which is normally open Maintenance Disassembly Refer to Figure 2 Completely disassemble the valve in sequence shown NOTE Strainers are easily damaged Do not remove from IN ports of valve body Cleaning 1 Clean the body with strainers intact and all other metal parts with a nonflammable solvent 2 Wash all rubber parts with soap and water 3 Rinse parts thoroughly and blow dry w...

Page 3: ...RT NO 1 1 RING Retaining see kit 2 1 O RING see kit 3 1 CARTRIDGE see kit 4 1 O RING see kit 5 2 PLUG Pipe R432027754 6 2 STRAINER R431003238 7A 1 BODY without lugs R431004615 7B 1 BODY with lugs R431004944 7C 1 BODY 2 CA 1B only R431004613 REPAIR KIT NEW P N R431003743 P 055474 K0002 INCLUDES REF DESCRIPTION 2 O RING 3 ASSEMBLY Cartridge 4 O RING Dow Corning 55M Grease PARTS LIST FIGURE 2 Block T...

Page 4: ...perator Figure 3 2 MA 1A PILOTAIR Valve Less Lugs Figure 4 2 MA 1A PILOTAIR Valve PARTS LIST 2 CA 1A PILOTAIR Valve Complete New P N R431004666 P 058721 00000 Basic Valve Less Operator New P N R431004663 P 058719 00002 Cam Lever Kit with Roll New P N R431003071 P 052974 K0000 Figure 6 2 CA 1A PILOTAIR Valve with Cam Roller Operator REF QTY DESCRIPTION 1 1 PIN 1 4 x 1 Roll 2 1 LEVER 3 1 PIN 1 4 x 3...

Page 5: ...SEPARATELY Part Number 5 1 SPRING Standard Return New P N R431005489 P 060360 00000 5A 1 SPRING Heavy Return New P N R431005782 P 061474 00000 5B 1 SPRING Light Return New P N R431006126 Figure 7 2 CA 1B PILOTAIR Valve PARTS LIST 2 CA 1C PILOTAIR Valve Complete New P N R431005758 P 061347 00000 Basic Valve 2 MA 1A Less Operator New P N R431004663 P 058719 00002 Cam Roller Operator Kit New P N R431...

Page 6: ...674 P 058723 00000 Basic Valve 2 MA 1A Less Operator New P N R431004663 P 058719 00002 Pilot Cylinder Operator Kit New P N R431003054 P 052956 K0001 REF NO QTY DESCRIPTION 1 1 PIN 1 4 x 1 Roll 2 2 PIN 5 32 x 3 8 Driv lok 3 1 CYLINDER Pilot 4 1 PISTON 5 1 O RING Figure 10 2 PA 1A PILOTAIR Valve AVENTICS A PILOTAIR VALVE SERVICE INFORMATION Lever Operator Kit New P N R431004677 P 058725 K0000 REF QT...

Page 7: ...800 Operation The Panel Mounted A PILOTAIR Valve is designed to operate at pressures up to 250 psi 17 2 bar within a temperature range of 40º F to 200º F 40 C to 93 C PANEL MOUNTED A PILOTAIR VALVE Refer to Figure 11 With no mechanical force on the valve disc seat the inlet valve seats and seals the passage from the inlet to the outlet port The outlet port is vented to atmosphere through the cente...

Page 8: ...oward the right single handle models the position index marks and engraved cavity numbers appear on the right side of the cams The valve cavities are numbered 1 2 3 and 4 from the left with the cam housing in the same position as above Valve Portion Maintenance 2 BA 1 PILOTAIR VALVE HOUSING DISASSEMBLY Refer to Figure 17 page 17 Disassemble the housing in sequence shown CLEANING 1 Clean all parts ...

Page 9: ... If any cam is to be replaced the replacement cam must be marked identically to the cam it replaces Figure 12 Typical Spring Return Valve Assembly Figure 13 Typical Valve Assembly 1 Position cams so that the engraved cavity numbers and position index marks are facing toward the handle It is imperative that the position index marks appear in a line at the bottom center when the handle is in the upr...

Page 10: ...P 059346 00000 R431004538 P 058453 00001 R431005094 P 059387 00013 R431005168 P 059513 00004 Plugged R431004898 P 059071 00000 R431004898 P 059071 00000 R431005805 P 061621 00000 2 HA 3 R431004511 P 058378 00002 R431004582 P 058515 00002 R431005026 P 059346 00000 R431005026 P 058453 00001 R431005101 P 059387 00020 R431005171 P 059513 00007 Plugged R431004898 P 059071 00000 R431004898 P 059071 0000...

Page 11: ...05169 P 059513 00005 R431004899 P 059072 00000 R431004899 P 059072 00000 P 059073 00000 R431006402 P 064249 00000 2 HA 4 R431004543 P 058457 00001 R431004579 P 058510 00001 R431005026 P 059346 00000 R431005026 P 059346 00000 P 059387 00001 R431005203 P 059600 00000 P 059080 00000 P 059080 00000 P 059080 00000 P 059080 00000 2 HA 4 R431004801 P 058892 00001 R431004908 P 059088 00001 R431005026 P 05...

Page 12: ... HANDLE POSTION PORTS WHICH PRESSURE IS SUPPLIED FIG 14 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 Plugged X 2 Plugged X 3 Plugged 4 Plugged X SINGLE THREE WAY VALVES 2 HA 1 2 HA 2 R431005003 2 HA 2L R431005006 2 HA 2Z R431005013 2 HA 2 R431005402 2 HA 2 R431005815 2 HA 2 R431005820 2 HA 2LZ R431005864 2 HA 2L R431005927 2 HA 2L R431006008 2 HA 2R R431005008 2 HA 2LR R43100511 2 HA 2R R4310...

Page 13: ...gged X HANDLE POS PORTS TO WHICH PRES SURE IS SUPPLIED FIG 14 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 Plugged X 2 Plugged X 3 Plugged X HANDLE POS PORTS TO WHICH PRESSURE IS SUPPLIED FIG 14 SINGLE RIGHT HANDLE 1 Plugged X X 2 Plugged X 3 Plugged X X 4 Plugged X QUADRUPLE THREE WAY VALVES 2 HA 4 TRIPLE THREE WAY VALVES 2 HA 3 Con t HANDLE POS PORTS TO WHICH PRES SURE IS SUPPLIED FIG 15 SI...

Page 14: ...IG 15 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 X X 2 X X 3 4 X X 5 X X HANDLE PORTS TO WHICH PRES FIG 14 LEFT HAND RIGHT OUT 1L OUT 2L OUT 1R OUT 2R 1 X X 2 X 3 X HANDLE PORTS TO WHICH PRES FIG 15 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 X 2 X X 3 X X X 4 X X X 5 X X HANDLE PORTS TO WHICH PRES FIG 14 LEFT HAND RIGHT HAND OUT 1L OUT 2L OUT 1R OUT 2R 1 X X 2 3 X X 2 HA 4 R431004537...

Page 15: ...3 X X X 4 X X X 5 X X X HANDLE PORTS TO WHICH PRES FIG 15 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 X X 2 X X X 3 X X 4 X X X 5 X X HANDLE POS PORTS TO WHICH PRESSURE IS FIG 14 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 X 2 X 3 X 4 X HANDLE PORTS TO WHICH PRESSURE IS FIG 15 SINGLE RIGHT HANDLE OUT 1L OUT 2L OUT 1R OUT 2R 1 X 2 X 3 4 X 5 X HANDLE PORTS TO WHICH PRESSURE IS FIG 14 SIN...

Page 16: ...31009020 10 1 PLUG Valve Cavity R431005364 11 1 RING Retaining R431001749 12 1 O Ring R431002016 13 1 PLUG Pipe R431001963 REF NO DESCRIPTION 4 O RING 15 16 O D 5 CARTRIDGE 6 O RING 7 8 O D Dow Corning 55m Grease MINOR REPAIR KIT New part no R431003742 P 055474 00004 SAME AS ABOVE PLUS REF NO 1 2 AND 3 For plugged cavity use one each of Ref No 10 11 and 12 and two each of Ref No 1 and 2 Double lis...

Page 17: ...ve Cover Exploded View REF NO QTY DESCRIPTION NEW PART NUMBER 1 1 PIN Driv lok R431002116 2 1 DOG Cam R431003426 3 1 RING Retaining R431002335 4 1 PUSH BUTTON R431002956 5 1 COVER Top R431003992 OLD PART NUMBER P 049775 00006 P 054691 00000 P 049857 00012 P 051997 00004 P 057103 00010 ...

Page 18: ...R431004981 8 2 WASHER R431002165 9 1 CAM R431004904 10 1 SPACER R431001740 11 2 ARBOR Spring Spring Returned Models Only R431004979 12 1 SPRING Spring Returned Models Only R431004978 13 1 SHAFT Handle R431004987 14 1 RING Retaining R431002333 15 1 FOLLOWER Cam R431005076 16 1 HOUSING Cam R431004955 16A 1 HOUSING Cam Latching Models Only R431004959 All items except these are needed in a Cam Housing...

Page 19: ...nly R431004977 13E 1 DETENT 5 Position Detent Models Only R431004974 14A 2 ARBOR Spring Spring Returned Models Only R431004979 14B 1 SPRING Spring Returned Models Only R431004978 15 2 FOLLOWER Cam R431005076 16A 1 HOUSING Cam R431006110 16B 1 HOUSING Cam Latching Models Only R431006092 All items except these are needed in a Cam Housing Position see pages 10 and 11 Detents are used in pairs New Par...

Page 20: ...3A 2 DETENT 3 Position Detent Models R431004976 13B 2 DETENT 3 Position Detent Models R431004975 13C 2 DETENT 5 Position Detent Models R431004977 13D 2 DETENT 5 Position Detent Models R431004974 14 FOLLOWER Cam R431005076 15 1 HOUSING Cam R431005408 3 are required on 2 HA 3 and 4 are required on 2 HA 4 All items except these are needed in a Cam Housing Position see pages 10 and 11 OLD PART NO P 04...

Page 21: ...14A 1 ARBOR Spring Spring Return Models Only 14B 1 SPRING Handle Return Spring Return Models Only 14C 1 SPACER Spring Return Models Only 15 2 SPACER R431002711 16 2 PLUG R431002564 17 2 SCREW Set R431002491 18 FOLLOWER Cam R431005076 3 are required on 2 HA 3 and 4 are required on All items except these are needed in a Cam Housing Position see pages 10 and 11 OLD PART NO See Identity Schedule See I...

Page 22: ...Handle R431004181 11A 1 SHAFT Handle Pc No P58452 0001 Only OBSOLETE 11B 1 SHAFT Handle Pc No P58452 0001 Only OBSOLETE 12 CAM 13 4 SPACER R431002711 14 4 PLUG R431002564 15 4 SCREW Set R431002491 16 FOLLOWER Cam R431005076 3 are required on 2 HA 3 and 4 are required on 2 HA 4 All items except these are needed in a Cam Housing Position see pages 10 and 11 OLD PART NO See Identity Schedule See Iden...

Page 23: ...e periods should be scheduled in accordance with frequency of use and working conditions All AVENTICS products should provide a minimum of 1 000 000 cycles of maintenance free service when used and lubricated as recommended However these products should be visually inspected for defects and given an in sys tem operating performance and leakage test once a year Where devices require a major repair ...

Page 24: ...ngtan Ontario CANAD A L71tt TM www a11entics cam ca infa ca a11entics cam Slv1 7QQ 74QQ May 2QT4 Sub1ec ttn c hange Printed in United States AVEKITICS Carparatian This dac urnent as well as the data spec ific atians and atherinfurmatian setfurth in it are the ED Clusive property atAVEl JTICS It may notb e reproduced argiven ta third parties withoutits cansent ...

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