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859.0089

Replace Seals or Rebuild Air Valve

NOTE:

Repair kits are available. See page 21 to order

the correct kit(s) for your pump. Air Valve Seal Kit parts
are marked with a †. Air Valve Repair Kit parts are
marked with a

◆

. Air Valve End Cap Kit parts are marked

with a

✠

Disassemble the Air Valve

1. Perform steps 1-5 under

Replace Complete Air

Valve,

page 8.

2. See F

. 3. Use a Torx screwdriver (T8 for aluminum

centers, T9 for plastic centers) to remove two screws
(209). Remove the valve plate (205),
cupassembly (212-214), spring (211), and detent
assembly (203).

3. Pull the cup (213) off of the base (212). Remove the

o-ring (214) from the cup.

4. See F

. 3. Remove the retaining ring (210) from

each end of the air valve. Use the piston (202) to
push the end caps (207, 217) out of the ends.
Remove end cap o-rings (206).

5. Remove the u-cup seals (208) from each end of the

piston (202), then remove the piston. Remove the
detent cam (204) from the air valve housing (201).

Reassemble the Air Valve

NOTE:

Apply lithium-based grease whenever instructed

to grease.

1. Use all parts in the repair kits. Clean other parts and

inspect for damage. Replace as needed.

2. Grease the detent cam (204) and install into housing

(201).

3. Grease the u-cups (208) and install on the piston with

lips facing toward the center of the piston.

4. Grease both ends of the piston (202) and install it in

the housing (201), with the flat side toward the cup
(212). Be careful not to tear u-cups (208) when slid-
ing piston into housing.

5. Grease new o-rings (206) and install on the end caps

(207). Install the end caps into the housing.

6. Install a retaining ring (210) on each end to hold end

caps in place.

. 2. Air valve u-cup installation

Lips face down

Lips face up

208

◆

†

208

◆

†

202

◆

ti12754a

Содержание VA25A

Страница 1: ...cluding approvals 125 psi 0 86 MPa 8 6 bar Maximum Fluid Working Pressure 125 psi 0 86 MPa 8 6 bar Maximum Air Input Pressure Important Safety Instructions Read all warnings and instructions in this manual Save these instructions VA25S Stainless Steel ti14342a VA25A Aluminum ti13946a ti13844a ti13843a End Flange Center Flange VA25P Polypropylene VA25C Conductive Polypropylene VA25F PVDF Patents Pe...

Страница 2: ...ions 15 Parts 16 Parts Kits Quick Reference 17 Center Section 18 Air Valve and Data Monitoring 20 Fluid Covers and Manifolds 22 Seats 24 Check Balls 24 Seat Check Ball and Diaphragm Kits 24 Diaphragms 26 Manifold O rings 28 Accessories 28 Technical Data 30 Customer Services Guarantee 33 Related Manuals Manual Description 859 0088 VERDERAIR VA 25 Air Operated Diaphragm Pump Operation 859 0101 Torqu...

Страница 3: ... C1 Conductive polypropylene center flange A01E Optional FKM Seals C2 Conductive polypropylene end flange VA25F PVDF Conductive Polypropylene C01A Standard F1 PVDF center flange C01B Pulse Count F2 PVDF end flange VA25P Polypropylene C01D Remote P1 Polypropylene center flange Polypropylene P01A Standard P2 Polypropylene end flange VA25S Stainless Steel P01B Pulse Count S1 Stainless steel standard ...

Страница 4: ... To help prevent fire and explosion Use equipment only in well ventilated area Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc Keep work area free of debris including solvent rags and gasoline Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Ground all equ...

Страница 5: ...or on skin and cause serious injury Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment Tighten all fluid connections before operating the equipment Check hoses tubes and couplings daily Replace worn or damaged parts immediately THERMAL EXPANSION HAZARD Fluids subjected to heat in confined spaces including hoses can create a ra...

Страница 6: ...ncludes but is not limited to Clothing and respirator as recommended by the fluid and solvent manufacturer Protective eyewear gloves and hearing protection WARNING Problem Cause Solution Pump cycles but will not prime Check valve ball severely worn or wedged in seat or manifold Replace ball and seat See page 11 Seat severely worn Replace ball and seat See page 11 Outlet or inlet clogged Unclog Inl...

Страница 7: ...ins fluid being pumped Diaphragm and backup ruptured Replace See page 12 Loose diaphragm shaft bolt Tighten or replace See page 12 Diaphragm shaft bolt o ring dam aged Replace o ring See page 12 Moisture in exhaust air High inlet air humidity Use drier air supply Pump exhausts excessive air at stall Worn air valve cup or plate Replace cup and plate See page 9 Damaged air valve gasket Replace gaske...

Страница 8: ...y from the air valve 4 Remove screws 109 metal pumps or nuts 112 plastic pumps Remove the air valve and gasket 108 5 To repair the air valve go to Disassemble the Air Valve step 1 in next section To install a replace ment air valve continue with Step 6 6 Align the new air valve gasket 108 on the center housing then attach the air valve See Torque Instructions page 15 7 For motors with reed switch ...

Страница 9: ...f the ends Remove end cap o rings 206 5 Remove the u cup seals 208 from each end of the piston 202 then remove the piston Remove the detent cam 204 from the air valve housing 201 Reassemble the Air Valve NOTE Apply lithium based grease whenever instructed to grease 1 Use all parts in the repair kits Clean other parts and inspect for damage Replace as needed 2 Grease the detent cam 204 and install ...

Страница 10: ... remains in place Install the spring 211 onto the protrusion on the cup Align the magnet in the base with the air inlet and install the cup assem bly 8 Grease the cup side and install the valve plate 205 Align the small hole in the plate with the air inlet Tighten the screws 209 to hold it in place FIG 3 Air valve assembly 210 210 207 206 206 208 202 208 209 205 212 211 203 204 ti18205b 201 Apply ...

Страница 11: ...and VA25F use hand tools only until thread locking adhesive patch releases 4 Remove the o rings 12 not used on some models seats 10 and balls 11 5 Turn the pump over and remove the inlet manifold Remove the o rings 12 not used on some models seats 10 and balls 11 Reassembly 1 Clean all parts and inspect for wear or damage Replace parts as needed 2 Reassemble in the reverse order following all note...

Страница 12: ...tinue with Step 5 4 All Other Diaphragms a Orient the pump so one of the fluid covers faces up Use a 10 mm socket wrench to remove the fluid cover screws 7 then pull the fluid cover up off the pump Turn the pump over and remove the other fluid cover b Plastic Pumps Use a 1 1 4 socket or box end wrench on the hex of a fluid side diaphragm plate to remove Then remove all parts of the diaphragm assem...

Страница 13: ...aximum 3 3 3 AIR SIDE markings on diaphragm must face center housing 4 4 4 4 4 If screw comes loose or is replaced apply permanent red Loctite or equivalent to diaphragm side threads Apply primer and medium strength blue Loctite or equivalent to shaft side threads 5 101 102 102 103 103 104 105 105 106 106 110 2 2 2 2 2 2 Lips must face out of housing 6 6 6 TP SP BN FK and GE models 5 3 3 ti14025b ...

Страница 14: ... f Reattach the first fluid cover 3 See Torque Instructions page 15 g Repeat Steps b and c for the other diaphragm assembly Go to Step 7 All Other Diaphragms Metal Pumps a Install the o ring 301 on the shaft bolt 304 b Assemble the fluid side plate 13 the dia phragm 15 the backup diaphragm 305 if present and the air side diaphragm plate 14 on the bolt exactly as shown in FIG 7 c Apply medium stren...

Страница 15: ...cond fluid cover Remember to remove the tool and replace the gasket when finished 8 Reassemble the ball check valves and manifolds as explained on page 11 Torque Instructions NOTE Fluid cover and manifold fasteners have a thread locking adhesive patch applied to the threads If this patch is excessively worn the screws may loosen during operation Replace screws with new ones or apply medium strengt...

Страница 16: ...16 859 0089 Parts ti14023a 1 2 9 4 6 18 15 11 10 3 7 12 5 8 13 1 1 1 Not used on some models ...

Страница 17: ... Polypropylene Polypro pylene and PVDF 859 0083 Stainless Steel aluminum center 859 0076 Stainless Steel plastic center 8 Plug 1 in 6 pack aluminum pumps only 6 859 0105 npt 859 0106 bspt 9 859 0102 Pressure Relief Valve fuel dispense model only see page 22 1 10 Seats 4 pack includes 8 o rings where needed see page 24 4 859 0009 Acetal 859 0010 Aluminum 859 0011 Buna N 859 0017 FKM Fluoroelastomer...

Страница 18: ...08 ti14104a 110 110 air valve detail see page 20 113 remote air control Ref Description Qty 101 VALVE pilot 2 102 CARTRIDGES pilot valve receiver 2 103 O RING receiver cartridge 2 104 SHAFT center 1 105 BEARING center shaft 2 106 U CUP center shaft 2 108 GASKET air valve 1 109 SCREW M6 x 25 stainless steel for aluminum center section models A01A 4 110 HOUSING center not sold separately 1 112 NUTS ...

Страница 19: ...ot valve assemblies 101 2 pilot valve receiver cartridges 102 2 receiver cartridge o rings 103 NOTE xxxD models also require insert kit shown below Kit 859 0112 Remote Pilot Inserts xxxD Remote Air Control Kit includes 2 remote pilot inserts 113 Kit 859 0035 Center Shaft Kit All models Kit includes 1 center shaft 104 2 center shaft bearings 105 2 center shaft u cups 106 Kit 859 0037 Center Shaft B...

Страница 20: ...r cup o ring 214 1 air valve gasket 108 210 210 207 206 206 208 202 208 209 205 212 211 203 204 ti18205b 201 Apply lithium based grease 1 1 1 1 1 1 1 U cup lips must face piston 2 2 2 207 1 1 air inlet 214 213 3 3 Apply lithium based grease to contact surface 3 1 Ref Description Qty 201 HOUSING not sold separately 1 202 PISTON 1 203 DETENT PISTON ASSEMBLY 1 204 CAM detent 1 205 PLATE air valve 1 2...

Страница 21: ...sket 108 4 nuts 112 Pulse Count Kit Kit includes reed switch module 220 mounting screw Center Section Material Monitoring Air Valve End Cap Kit A01A Aluminum Standard or Pulse Count 859 0103 C01A Conductive Polypropylene Standard or Pulse Count 859 0073 P01A Polypropylene Standard or Pulse Count 859 0073 Remote Air Control Conversion Kits A01D Aluminum 859 0108 C01D Conductive Polypropylene 859 01...

Страница 22: ...lange head M8 x 32 stainless steel includes nuts 8 S1 S2 with any center Stainless steel 859 0084 BOLT hex head M8 x 20 stainless steel includes nuts 8 Fluid Cover and Manifold Material Kit Description Qty A1 A2 Aluminum 859 0033 BOLT hex head steel M8 x 25 8 C1 C2 P1 P2 F1 F2 Cond Poly Polypropylene PVDF 859 0075 BOLT flange head M8 x 45 stainless steel includes nuts 8 S1 S2 aluminum center A01A ...

Страница 23: ...ductive Polypropylene Center flange 859 0059 C2 Conductive Polypropylene End flange 859 0062 P1 Polypropylene Center flange 859 0058 P2 Polypropylene End flange 859 0061 F1 PVDF Center flange 859 0060 F2 PVDF End flange 859 0063 Fluid Cover and Manifold Material Porting Outlet Manifold Kit S1 Stainless Steel npt 859 0077 S2 Stainless Steel bspt 859 0078 ti14307a ti14309a ti14311a ti14313a Fluid Co...

Страница 24: ...rings not used 859 0013 Pump Size and Material Air Valve and Center Section Fluid Covers and Manifolds Diaphragm Manifold O Rings VA25A A01A A2 XX XX TP PT Check Ball Material Kit AC Acetal 859 0018 BN Buna N 859 0019 CR Polychloroprene 859 0022 CW Polychloroprene with stainless steel core 859 0023 FK FKM Fluoroelastomer 859 0027 GE Geolast 859 0020 PT PTFE 859 0024 SP Santoprene 859 0025 SS Stain...

Страница 25: ...1 SCREW 2 DIAPHRAGM PTFE Overmolded 2 TOOL install 1 859 0142 GE GE GE SEAT geolast 4 O RING PTFE 8 BALL geolast 4 O RING 2 DIAPHRAGM geolast 2 TOOL install 1 Kit Parts Qty 859 0143 AL BN BN SEAT aluminum 4 O RING PTFE 8 BALL buna N 4 O RING 2 DIAPHRAGM buna N 2 TOOL install 1 859 0144 AL GE GE SEAT aluminum 4 O RING PTFE 8 BALL geolast 4 O RING 2 DIAPHRAGM geolast 2 TOOL install 1 859 0145 AL SP ...

Страница 26: ... overmolded diaphragms 15 material indi cated in table 2 diaphragm set screws stainless steel 303 1 diaphragm install tool 302 NOTE See page 27 to order a diaphragm shaft bolt 304 if needed Pump Size and Material Air Valve and Center Section Fluid Covers and Manifolds Seats Check Balls Manifold O Rings VA25A A01A A2 AL BN XX PT Diaphragm Material Kit BN Buna N 859 0001 FK FKM Fluoroelastomer 859 0...

Страница 27: ...d PVDF pumps include air side diaphragm plate 14 fluid side diaphragm plate 13 includes bolt Diaphragm Shaft Bolt Metal Pumps Kit 859 0085 includes 8 bolts stainless steel M12 x 35 304 8 o rings 301 Pump Size and Material Air Valve and Center Section Fluid Covers and Manifolds Seats Check Balls Manifold O Rings VA25A A01A A2 AL BN XX PT Diaphragm Material Kit PT PTFE and EPDM 859 0006 304 301 15 1...

Страница 28: ...24 Includes 4 dampeners Rubber Foot Mounting Kit 819 4333 Includes washers nuts and rubber feet Grounding Wire Assembly Kit 819 0157 Includes ground wire and clamp Standard Pipe Flange Kits 819 6885 Polypropylene 819 6886 Stainless steel 819 6887 PVDF Each kit includes the pipe flange a PTFE gasket bolts spring lock washers flat washers and nuts Optional Muffler Part No 819 7000 3 4 npt aluminum P...

Страница 29: ...859 0089 29 ...

Страница 30: ... 4 8 bar and 50 cpm at 100 psi 0 7 MPa 7 0 bar and full flow 84 dBa 96 dBa Operating temperature range see page 31 Air inlet size 1 2 npt f Fluid inlet size Aluminum VA25A Plastic VA25P VA25C and VA25F Stainless Steel VA25S 1 in npt f or 1 in bspt 1 in raised face ANSI DIN flange 1 in npt f or 1 in bspt Fluid outlet size Aluminum VA25A Plastic VA25P VA25C and VA25F Stainless Steel VA25S 1 in npt f...

Страница 31: ...lsius Acetal AC 10 to 180 F 12 to 82 C 32 to 150 F 0 to 66 C 10 to 180 F 12 to 82 C Buna N BN 10 to 180 F 12 to 82 C 32 to 150 F 0 to 66 C 10 to 180 F 12 to 82 C FKM Fluoroelastomer FK 40 to 275 F 40 to 135 C 32 to 150 F 0 to 66 C 10 to 225 F 12 to 107 C Geolast GE 40 to 150 F 40 to 66 C 32 to 150 F 0 to 66 C 10 to 150 F 12 to 66 C Polychloroprene over molded diaphragm CO or Polychloro prene check...

Страница 32: ...követelményeit Atbilst EK direktīvām Atitinka šias ES direktyvas Zgodność z Dyrektywami UE Konformi mad Direttivi tal KE V skladu z direktivami ES Je v súlade so smernicami ES Съвместимост с Директиви на ЕО Tá ag teacht le Treoracha an CE Respectă directivele CE 2006 42 EC Machinery Safety Directive 94 9 EC ATEX Directive Ex II 2 GD c IIC T4 Tech File stored with NB 0359 See Part No above for corr...

Страница 33: ...e WARRANTY DISCLAIMER VERDER has made an effort to illustrate and describe the products in the enclosed brochure accurately however such illustrations and descriptions are for the sole purpose of identification and do not express or imply a warranty that the products are merchantable or fit for a particular purpose or that the products will necessarily conform to the illustration or descriptions P...

Страница 34: ... 187 189 HU 1117 Budapest HUNGARY Tel 0036 1 3651140 Fax 0036 1 3725232 e mail info verder hu The Netherlands Verder BV Leningradweg 5 NL 9723 TP Groningen THE NETHERLANDS Tel 31 50 549 59 00 Fax 31 50 549 59 01 e mail info verder nl Poland Verder Polska ul Ligonia 8 1 PL 40 036 Katowice POLAND Tel 48 32 78 15 032 Fax 48 32 78 15 034 e mail verder verder pl Romania Verder România Drumul Balta Doam...

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