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859.0089

13

Diaphragms and Center Section

Disassembly

NOTE: Diaphragm kits are available in a range of materi-
als and styles. See page 27 to order the correct dia-
phragms for your pump. A Center Rebuild Kit also is
available. See page 23. Parts included in the Center
Rebuild Kit are marked with an *. For best results, use all
kit parts.

1.

Follow the Pressure Relief Procedure on page 9.

2.

Remove the manifolds and disassemble the ball
check valves as explained on page 12.

3.

Overmolded 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 (3)
up off the pump.

b.

The exposed diaphragm (15) will screw off by
hand from the diaphragm shaft (104). The dia-
phragm shaft bolt will remain attached to the dia-
phragm. Remove the air side diaphragm plate
(14).

c.

Turn the pump over and remove the other fluid
cover. Pull the diaphragm and shaft up through
the center housing.

d.

Grasp the diaphragm firmly and use a wrench on
the flats of the shaft to remove. Also remove the
air side diaphragm plate (14). Continue 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 dia-
phragm assembly. See F

IG

. 7.

Metal Pumps: Remove the bolt (304) from one
side of the diaphragm shaft, then remove all
parts of that diaphragm assembly. See F

IG

. 7.

c.

Follow the same procedure to disassemble the
other diaphragm assembly.

5.

Inspect the diaphragm shaft (104) for wear or
scratches. If it is damaged, inspect the bearings
(105) in place. If they are damaged, use a bearing
puller to remove them.

NOTE: Do not remove undamaged bearings.

6.

Use an o-ring pick to remove the u-cup packings
(106) from the center housing. Bearings (105) can
remain in place.

7.

Use a socket wrench to remove the pilot valves
(101).

8.

Remove the pilot valve cartridges only if necessary
due to a known or suspected problem. After remov-
ing pilot valves, use a hex to remove the cartridges
(102), then remove o-rings (103). If stripped, use two
screwdrivers to screw out the cartridge.

NOTE: Do not remove undamaged pilot valve
cartridges.

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Содержание VERDERAIR VA 25

Страница 1: ...model information including 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 Hastelloy ti14342a Aluminum ti13946a Stainless Steel ti13844a ti13843a End Flange Center Flange Polypropylene Conductive Polypropylene PVDF ...

Страница 2: ...3 Torque Instructions 16 Parts 17 Parts Kits Quick Reference 18 Fluid Section 19 Air Section 22 Air Valve and Data Monitoring 24 Seats 26 Check Balls 26 Diaphragms 27 Seat Check Ball and Diaphragm Kits 29 Accessories 31 Technical Data 32 Customer Services Guarantee 35 Related Manuals Manual Description 859 0088 VERDERAIR VA 25 HE Air Operated Diaphragm Pump Operation 859 0101 Torque Instructions M...

Страница 3: ...inum A Aluminum AC Acetal AC Acetal C Conductive Polypropylene C Conductive Polypropylene AL Aluminum BN Buna N H Hastelloy P Polypropylene BN Buna N GE Geolast K PVDF GE Geolast HY TPE P Polypropylene HY TPE NE Polychloroprene Standard S Stainless Steel KY PVDF NW Polychloroprene Weighted PP Polypropylene SP Santoprene SP Santoprene SS 316 Stainless Steel SS 316 Stainless Steel TF PTFE VT FKM Flu...

Страница 4: ...PLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode 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 powe...

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: ...leaning equipment BURN HAZARD Equipment surfaces and fluid that s heated can become very hot during operation To avoid severe burns Do not touch hot fluid or equipment Wait until equipment fluid has cooled completely PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect you from serious i...

Страница 7: ...d air Check valve ball severely worn and wedged in seat or manifold Replace ball and seat See page 12 Pilot valve worn damaged or plugged Replace pilot valve See page 13 Air valve gasket damaged Replace gasket See page 9 Check valve ball is wedged into seat due to overpressurization Install pressure relief kit See Acces sories page 30 Dispensing valve clogged Relieve pressure and clear valve Air t...

Страница 8: ...es See page 13 Worn shaft seals or bearings Replace shaft seals or bearings See page 13 Air tubing is damaged or loose remote air control models Replace tubing or secure connection Remote air pressure is higher than pump air pressure remote air control models Regulate remote pilot air pressure to be equal to or less than main air Pump leaks air externally Air valve or fluid cover screws loose Tigh...

Страница 9: ... 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 16 7 For motors with reed switch U...

Страница 10: ...e 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 Order Verder part number 819 0184 1 Use all parts in the repair kits Clean other parts and inspect for damage Replace as needed 2 Grease the detent ca...

Страница 11: ...o ring remains in place Install the spring 211 onto the pro trusion on the cup Align the magnet in the base with the air inlet and install the cup assembly 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 ti18205a 201 ...

Страница 12: ...PP and VA25 HE KP 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 ...

Страница 13: ...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 dia phragm asse...

Страница 14: ...DE 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 HY SP BN VT and GE models 5 3 3 ti14025b 2 Torque to 20 25 i...

Страница 15: ...t into the housing f Reattach the first fluid cover 3 See Torque Instructions page 16 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 diaphragm 15 the backup diaphragm 305 if present and the air side diaphragm plate 14 on the bolt exactly as shown in FIG 7 c A...

Страница 16: ...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 12 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 17: ...23a 8 1 1 Not used on some models 1 see page 22 2 see page 24 3 see page 19 4 see page 20 5 see page 21 6 see page 19 7 see page 19 12 see page 26 13 see page 28 10 see page 26 11 see page 26 18 1 9 see page 30 15 see page 27 ...

Страница 18: ...lene Polypropylene and PVDF 859 0083 Stainless Steel and hastelloy aluminum center 859 0076 Stainless Steel and hastelloy plastic cen ter 8 Plug 1 in 6 pack for aluminum pumps 6 859 0105 npt 859 0106 bspt 9 859 0102 Pressure Relief Valve fuel dispense model only see page 19 1 10 Seats 4 pack includes 8 o rings where needed see page 26 4 859 0009 Acetal 859 0010 Aluminum 859 0011 Buna N 859 0017 FK...

Страница 19: ...ead M8 x 32 stainless steel includes nuts 8 S H Stainless steel Hastelloy 859 0084 BOLT hex head M8 x 20 stainless steel includes nuts 8 Fluid Cover and Manifold Material Kit Description Qty A Aluminum 859 0033 BOLT hex head steel M8 x 25 8 C Cond Poly 859 0075 BOLT flange head M8 x 45 stainless steel includes nuts 8 P Polypropylene K PVDF S or H aluminum air section Stainless steel or Hastelloy 8...

Страница 20: ...ons VA25 HE A A SS BN BN TB 00 Fluid Cover and Manifold Material Connections Outlet Manifold Kit A Aluminum TN npt 859 0028 A Aluminum TB bspt 859 0029 Fluid Cover and Manifold Material Porting Outlet Manifold Kit C Conductive Polypropylene FC Center flange 859 0059 C Conductive Polypropylene FE End flange 859 0062 P Polypropylene FC Center flange 859 0058 P Polypropylene FE End flange 859 0061 K ...

Страница 21: ...Porting Inlet Manifold Kit A Aluminum TN npt 859 0030 A Aluminum TB bspt 859 0031 Fluid Cover and Manifold Material Porting Inlet Manifold Kit C Conductive Polypropyl ene FC Center flange 859 0065 C Conductive Polypropyl ene FE End flange 859 0068 P Polypropyl ene FC Center flange 859 0064 P Polypropyl ene FE End flange 859 0067 K PVDF FC Center flange 859 0066 K PVDF FE End flange 859 0069 ti1430...

Страница 22: ...Aluminum Air Section A 112 2 108 ti14104a 110 110 air valve detail see page 24 113 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 A 4 110 HOUSING center 1 11...

Страница 23: ...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 Bearing Kit All models Kit includes 2 center shaft bearings 105 2 center shaft u cups 106 The center housing 110 is not sold separately Ground Screw Kits Included in Center Section Rebuild Kit 859 0000 Center Housing Kits ...

Страница 24: ...mp Size Fluid Section Air Section Seats Balls Diaphragms Connections Options VA25 HE A A SS BN BN TB 00 210 210 207 206 206 208 202 208 209 205 212 211 203 204 ti18205a 201 Apply lithium based grease 1 1 1 1 1 1 1 U cup lips must face piston 2 2 2 207 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 DET...

Страница 25: ...des reed switch module 220 mounting screw Sample Configuration Number Pump Size Fluid Section Air Section Seats Balls Diaphragms Connections Options VA25 HE A A SS BN BN TB 00 Air Valve Seal Kits All models 859 0041 Optional VT Seals 859 0452 Center Section Material Air Valve End Cap Kit A Aluminum 859 0103 C Conductive Polypropylene 859 0073 P Polypropylene 859 0073 Remote Air Control Conversion ...

Страница 26: ...ms Connections Options VA25 HE A A SS BN BN TB 00 Seat Material Kit AC Acetal 859 0009 AL Aluminum 859 0010 BN Buna N o rings not used 859 0011 GE Geolast 859 0012 HY TPE o rings not used 859 0013 KY PVDF 859 0087 PP Polypropylene 859 0014 SP Santoprene 859 0015 SS Stainless steel metal pumps 859 0016 Stainless steel plastic pumps 859 0753 VT FKM Fluoroelastomer o rings not used 859 0017 Seat Mate...

Страница 27: ...12 2 overmolded diaphragms 15 material indicated in table 2 diaphragm set screws stainless steel 303 1 diaphragm install tool 302 NOTE Fluid plates 13 14 and diaphragm shaft bolts 304 are sold separately See page 28 The shaft 104 is part of Kit 859 0000 the Center Section Rebuild Kit Sample Configuration Number Pump Size Fluid Section Air Section Seats Balls Diaphragms Connections Options VA25 HE ...

Страница 28: ...1 bolt 304 Kits for polypropylene conductive polypropylene and PVDF pumps include air side diaphragm plate 14 fluid side diaphragm plate 13 includes bolt Diaphragm Shaft Bolt Metal Pumps Kit 859 0085 includes 1 bolt stainless steel M12 x 35 304 1 o ring 301 Sample Configuration Number Pump Size Fluid Section Air Section Seats Balls Diaphragms Connections Options VA25 HE A A SS BN BN TB 00 Diaphrag...

Страница 29: ...859 0148 M P SP SP SP TF 859 0149 M P VT VT VT TF 859 0136 M SS BN BN TF 859 0754 P SS BN BN TF 859 0137 M SS TF TF TF 859 0755 P SS TF TF TF 859 0138 M SS TF TO TF 859 0756 P SS TF TO TF 859 0251 M SS SP SP TF 859 0757 P SS SP SP TF 859 0416 M SS NW BN TF 859 0758 P SS NW BN TF 859 0417 M SS NW NO TF 859 0759 P SS NW NO TF 859 0418 M SS SS TF TF 859 0760 P SS SS TF TF 859 0590 M SS GE GE TF 859 0...

Страница 30: ... 4 dampeners 8 washers and 8 lock nuts Wall Bracket Dampener Kit 859 0124 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 fla...

Страница 31: ... 32 Air inlet size 1 2 npt f Fluid inlet size Aluminum VA25 HE AA 1 in npt f or 1 in bspt Plastic VA25 HE PP VA25 HE CC and VA25 HE KP 1 in raised face ANSI DIN flange Hastelloy VA25 HE HC and Stainless Steel VA25 HE SA VA25 HE SC and VA25 HE SP 1 in npt f or 1 in bspt Fluid outlet size Aluminum VA25 HE AA 1 in npt f or 1 in bspt Plastic VA25 HE PP VA25 HE CC and VA25 HE KP 1 in raised face ANSI D...

Страница 32: ...r too low for the components of your pump may cause equipment damage Diaphragm Ball Seat Material Fluid Temperature Range Aluminum Hastelloy or Stainless Steel Pumps Polypropylene or Conductive Polypropylene Pumps PVDF Pumps Fahrenheit Celsius Fahrenheit Celsius Fahrenheit Celsius 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 1...

Страница 33: ...859 0089 33 Notes ...

Страница 34: ...ARRANTY 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 PROD...

Страница 35: ...IR YHUGHU KX QGLD 9HUGHU QGLD 3XPSV 3YW WG 3ORW 1R ORFN 0 KLQFKZDG 3XQH 1 H PDLO 6DOHV YHUGHU FR LQ ZZZ YHUGHU FR LQ WDO 9HUGHU WDOLD 9LD 0DHVWUL HO ODYRUR 9D LD 5LHWL 7 7HO H PDLO LQIR YHUGHU LW 7KH 1HWKHUODQGV 9HUGHU 9 HQLQJUDGZHJ 1 73 URQLQJHQ 7 1 7 5 1 6 7HO D H PDLO LQIR YHUGHU QO 3RODQG 9HUGHU 3ROVND XO 3RUFHODQRZD 3 ದ DWRZLFH 32 1 7HO D H PDLO YHUGHU YHUGHU SO 5RPDQLD 9HUGHU 5RP QLD UXPXO D...

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