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Repair

3A8693C

Air Valve Repair

Tools Required:

• Torque wrench

• Torx (T20) screwdriver

or 7 mm (9/32 in.) socket wrench

• Needle-nose pliers

• O-ring pick

• Lithium-base grease, part no. 111920 (Lubriplate

630AA or equivalent)

Air valve repair kit 236273 is available. Use all parts in

the kit for best results. See

Parts

, starting on page 25.

Service the air valve as follows. See F

. 10–F

. 13.

Disassemble Air Valve

1. Perform the

Pressure Relief Procedure

, page 12.

2. Disconnect all air and fluid lines from the

equipment.

3. Use an applicable screwdriver or wrench to remove

the screws (3) from the valve cover (2) on the center

housing (1). Remove valve cover (2) and gasket (4)

from center housing (1).

4. Move the valve carriage (5) to the center position

and pull it out of the cavity.

5. Remove the valve block (7) and o-ring (6) from the

carriage.

6. Use a needle-nose pliers to pull the pilot block (18)

straight up and out of the cavity. See F

. 11.

7. Pull the actuator pistons (11) out of the bearings

(12). See F

. 12.

8. Remove the u-cup packings (10) from the pistons.

Pull the pilot pins (16) out of the bearings (15).

9. Remove the o-rings (17) from the pilot pins.

10. Inspect the valve plate (8). If damaged, use an

applicable screwdriver or wrench to remove the

screws (3). Remove the valve plate (8) and seal (9).

See F

. 13.

11. Inspect the bearings (12, 15). If damaged, follow

Replace Bearing and Air Gasket

, page 23.

NOTE:

Do not remove undamaged bearings.

12. Clean and inspect all parts for wear or damage.

Replace as needed.

. 10: Air Valve Access

. 11: Air Valve Carriage

Torque to 50–60 in-lb (5.6–6.8 N•m).

Grease.

Grease lower face.

Содержание 3A8693C

Страница 1: ...t for use in sanitary applications For professional use only 120 psi 0 8 MPa 8 bar Maximum Fluid Working Pressure 120 psi 0 8 MPa 8bar Maximum Air Input Pressure See page 2 for model information inclu...

Страница 2: ...arts 26 Kits and Accessories 28 Torque Instructions 29 Torque Sequence 29 Performance Charts 30 Dimensions 31 Technical Specifications 32 California Proposition 65 33 Graco Standard Husky Pump Warrant...

Страница 3: ...only Do not alter or modify equipment Alterations or modifications may void agency approvals and create safety hazards Make sure all equipment is rated and approved for the environment in which you ar...

Страница 4: ...contain chemicals that can react with aluminum Contact your material supplier for compatibility TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the e...

Страница 5: ...ible See Models page 2 or check with your local supplier ID Sample Configuration Number 2150LP PA01AA1FB BBNBN 2150 LP P A01A A1 FB B BN BN Pump Model Wetted Section Material Drive Center Section and...

Страница 6: ...y line J Fluid drain valve required not supplied K Fluid shutoff valve L Flexible conductive fluid outlet line N Air inlet port R Fluid inlet port S Fluid outlet port Y Ground wire 1 2 in npt f port F...

Страница 7: ...hind the grounding screw and tighten the screw securely Connect the clamp end of the ground wire to a true earth ground Air and fluid lines Use only conductive lines with a maximum of 500 ft 150 m com...

Страница 8: ...diameter If a line longer than 15 ft 4 57 m is required use a larger diameter line Avoid sharp bends or kinks in the line 3 Place a conductive grounded container U at the end of the air exhaust line t...

Страница 9: ...V relieves fluid pressure in the fluid line See FIG 5 Fluid shutoff valve K shuts off fluid flow 1 Install flexible conductive fluid lines G and L 2 Install a fluid drain valve J in the fluid outlet l...

Страница 10: ...p relative to the liquid level in the supply b Reduce the friction length of the suction lines Remember that fittings add friction length to the lines Reduce the number of fittings to reduce the frict...

Страница 11: ...1 Fluid covers 113 Center manifold 126 Clevis pin 127 Cotter pin FIG 4 Fluid Inlet and Outlet Port Orientation 101 101 113 113 126 126 126 126 127 127 127 127 Some systems may require installation of...

Страница 12: ...utlet line L to the fluid outlet port S and route the line to the end container 5 Close the fluid drain valve J 6 Turn the air regulator C to the lowest air pressure setting and open the bleed type ma...

Страница 13: ...Always cycle the equipment during the entire flushing process Always perform the Pressure Relief Procedure page 12 and flush the equipment before storing it for any length of time 1 Perform the Pressu...

Страница 14: ...d in Technical Specifications page 32 To aid with priming fill the chambers with liquid Equipment operates erratically Clogged suction line Inspect clear Sticky or leaking check valve flapper 116 Clea...

Страница 15: ...eplace gaskets 112 114 see page 16 Equipment leaks fluid externally from the joint between the center manifold and manifold Worn or damaged gaskets 121 Replace gaskets 121 see page 16 Gasket 121 not i...

Страница 16: ...e Replace as needed NOTE To ensure proper seating always replace all gaskets seats and check valve components when performing check valve repairs Reassemble Check Valves 1 Install all check valve comp...

Страница 17: ...read locker to the threads Torque to 190 220 in lb 21 5 24 9 N m See Torque Sequence page 29 1 119 118 117 116 112 115 114 114 115 112 116 117 118 119 121 121 Seat and check valve components Seat and...

Страница 18: ...place as needed Reassemble Diaphragms 1 Assemble the diaphragm plates 104 105 packing o ring 108 and diaphragm 401 onto the diaphragm shaft bolt 107 See FIG 9 NOTE Install diaphragms 401 with the side...

Страница 19: ...Section Apply medium strength blue thread locker to the threads Torque to 190 220 in lb 21 25 N m See Torque Sequence page 29 1 2 Circular outlet hole must be at the base of the equipment 1 1 1 106 1...

Страница 20: ...diaphragms removed 1 2 105 5 107 3 401 7 104 4 24 19 1 402 1 Lips face out of housing 1 Rounded side faces diaphragm 401 AIR SIDE must face center housing 1 Grease Apply medium strength blue thread l...

Страница 21: ...e center position and pull it out of the cavity 5 Remove the valve block 7 and o ring 6 from the carriage 6 Use a needle nose pliers to pull the pilot block 18 straight up and out of the cavity See FI...

Страница 22: ...actuator pistons 11 Reach inside the cavity and insert the actuator pistons into the bearings 12 wide end first Leave the narrow end of the pistons exposed See FIG 12 9 Grease the lower face of the p...

Страница 23: ...bearings 19 were removed reach into the center housing 1 with an o ring pick to hook the u cup packings 402 Remove u cup packings from the housing 9 Inspect parts for wear or damage Replace as necess...

Страница 24: ...23 3 Insert bearings tapered end first 1 2 Press fit bearings flush with surface of center housing 1 Apply medium strength blue thread locker to the threads Torque to 120 150 in lb 14 17 N m 3 19 25...

Страница 25: ...Parts 3A8693C 25 Parts Air Section Parts 24 23 25 22 12 15 19 1 20 3 2 4 5 10 11 7 3 8 9 6 18 16 17 402...

Страница 26: ...Parts 26 3A8693C Fluid Section Parts 126 102 120 103 112 115 114 119 118 117 116 101 119 118 117 116 107 108 105 401 104 121 113 122 123 124 111 110 106 120 121 113 125 127...

Страница 27: ...298 COVER fluid aluminum 2 102 20A296 MANIFOLD inlet aluminum 1 103 20A297 MANIFOLD outlet aluminum 1 104 189298 PLATE air side aluminum 2 105 189820 PLATE fluid side carbon steel 2 106 25U701 SCREW M...

Страница 28: ...er 4 117 SPACER flapper 4 Kit No Includes Refs Description Qty 25U702 118 BRACKET flapper 4 119 SCREW shoulder M6 x 1 0 8 Kit No Includes Refs Description Qty 25U704 122 BRACKET mounting 2 123 BRACKET...

Страница 29: ...a few turns 2 Follow the torque sequence to turn down each fastener until the fastener head contacts the equipment 3 Follow the torque sequence to turn each screw by 1 2 turn or less until at specifie...

Страница 30: ...ad air consumption A C B D 0 20 1 4 0 14 0 20 76 40 151 60 227 80 303 100 379 120 454 140 530 160 606 40 2 8 0 28 60 4 1 0 41 80 5 5 0 55 100 6 9 0 69 120 8 3 0 83 FLUID FLOW gpm lpm Pump tested in wa...

Страница 31: ...ver A B C D E F G H J K L M N in 23 31 20 86 17 73 3 16 13 40 6 70 23 29 11 64 13 81 17 69 11 01 13 95 8 89 mm 592 1 529 8 450 3 80 3 340 4 170 2 591 6 295 7 350 8 449 3 279 7 354 3 225 8 Dimensions c...

Страница 32: ...meters Wet 30 ft 9 14 meters Fluid flow per cycle Standard Diaphragms 1 gallon 3 79 liters Noise dBa Maximum sound pressure 90 dBa at 100 psi 0 69 MPa 6 9 bar at 50 cpm Inlet Outlet Sizes Air inlet s...

Страница 33: ...ost restricted wetted component Operating at a fluid temperature that is too high or too low for the components of your equipment may cause equipment damage Diaphragm Check or Seat Material Fluid Temp...

Страница 34: ...ect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER...

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