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Installation, Operating, and Maintenance Instructions Series 02 VAT Vakuumventile AG, CH-9469 Haag , Switzerland Tel ++41 81 771 61 61 Fax ++41 81 771 4 8 30 Email reception@vat.ch http://www.vat.ch M02001EB 2003 - 04 - …

Installation, Operating, and Maintenance Instructions

Series 02

VAT Vakuumventile AG, CH-9469 Haag, Switzerland

Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch

M02001EB

2003-04-14

6/13

Replacing Piston seals:

1. Remove gate and cover sheets as described above

2. Unfasten screws 40 (8x) and remove bonnet 64

3. Remove nut 55 and lug 22, and pull out piston 14 and shaft 13

4. Replace piston O-ring 32 and shaft seal 33, replace static O-rings 31, 35, 36 if damaged

5. Lubricate cylinder and piston with VAT high temperature pneumatic grease

6. Reassemble in reverse direction

Replacing Position indicator

1. Disconnect valve from compressed air and electrical supply

2. Remove cover sheets 15 (2x) with screws 47 (4x per sheet)

3. Unfasten screws 76 (4x), wire wrap and screws (2x per switch) of micro switch

75, remove plug with wires and switches (see detail)

4. Reassemble in reverse direction

The switch point can be readjusted by loosening the screws of the switch and

moving the switch in the slotted holes of the mounting bar. The switch point should

be set 1 to 1.5 mm prior to the end positions.

Adjustment of Actuator

The compression of the gate seal is adjusted and tested at our factory and must normally not be readjusted.

Verification of Adjustment

Gap «A» between gate and seat (see sketch beside) should be 3.0 mm ±0.15 mm

Gate and seat should be parallel within 0.2 mm

During closing the mechanical locking should occur between 1.3 and 2 bar air pressure

To check this : 1. Reduce air pressure below 1 bar

2. Command valve in closed position

3. Increase air pressure until a clicking sound indicates the mechanical locking

Adjustment of Compression and / or Parallelism

1. Open valve

2. Loosen screws 43 (2x per rack) of racks 12 (2x)

3. Adjust compression of gate seal by turning both screws 42 by the same angle

Note : Turning screws 42 by 30° results in 0.125 mm change of compression.

4. Adjust parallelism by turning one screw 42

Note : Turning one screw 42 by 30° results in 0.125 mm change of compression on the respective side

5. Fasten screws 43 (4x)

6. Open and close valve, verify again compression and parallelism, repeat adjustment if necessary

Installation, Operating, and Maintenance Instructions

Series 02

VAT Vakuumventile AG, CH-9469 Haag, Switzerland

Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch

M02001EB

2003-04-14

7/13

Lubrication of Valve

Gaskets in the vacuum area are not lubricated. Small amounts of a suitable high vacuum grease (VAT high

performance vacuum grease) may be used to lubricate O-rings or gate seal.

Lubricate pneumatic cylinder and piston seals with VAT high temperature pneumatic grease. Other lubricants may not

meet our cycle life specification.

Lubricate gears, racks, and lashes in the actuator with Rocol or equivalent.

Lubricate screws outside the vacuum with Molykote 321 R or equivalent. Screws supplied by VAT are lubricated.

Pneumatic cylinder and actuator parts must be relubricated after the specified cycle life (see chapter «Technical data»).

The shaft of new bellows assembly is lubricated at the factory.

Spare Parts

Seal kit, Actuator service kit, Lubricants

Description

Ordering no.

Seal kit, consisting of 1 gate with vulcanized VITON® seal and 1 bonnet seal

D-ordering no. of valve

Actuator service kit for DN 25x... / 32x..., consisting of 2 bellows assemblies, all actuator

seals, and lubricant for piston (VAT high temperature pneumatic grease)

77252-R8

Actuator service kit for DN 46x... - 51x..., consisting of 2 bellows assemblies, all actuator

seals, and lubricant for piston (VAT high temperature pneumatic grease)

77369-R8

VAT high temperature pneumatic grease (for piston), 12g

N-6951-403

VAT high performance vacuum grease, 10g

N-6951-011

Installation, Operating, and Maintenance Instructions

Series 02

VAT Vakuumventile AG, CH-9469 Haag, Switzerland

Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch

M02001EB

2003-04-14

8/13

Gate with vulcanized VITON® seal, Bonnet seal, Body O-ring at SEMI interface

Gate aluminium,

VITON® seal

Gate stainless steel,

VITON® seal

Bonnet O-ring

VITON®

O-ring VITON®

at SEMI interface

Bonnet VATSEAL

(optional, SS body only)

32 x 222

76168-R1

78175-R1

N-5100-266

N-5100-263

82180-01

46 x 236

77006-R1

78201-R1

N-5100-266

N-5100-263

82180-01

50 x 336

94027-R1

96031-R1

N-5100-275

N-5100-276

81697-01

25 x 160

91088-R1

81483-R1

N-5100-262

82588-01

25 x 210

81786-R1

N-5100-266

82180-01

25 x 265

77008-R1

N-5100-271

77951-01

25 x 420

85113-R1

80664-R1

N-5100-279

92075-01

51 x 160

78819-R1

78493-R1

N-5100-262

82588-01

51 x 210

77939-R1

78213-R1

N-5100-266

82180-01

51 x 265

79364-R1

78485-R1

N-5100-271

77951-01

51 x 420

76752-R1

77682-R1

N-5100-279

92075-01

25 x 254

77008-R1

N-5100-271

77951-01

32 x 336

92020-R1

N-5100-275

N-5100-273

81697-01

46 x 336

79460-R1

81694-R1

N-5100-275

N-5100-273

81697-01

Gate/actuator assembly, Valve body, Bonnet flange

Ordering numbers of gate/actuator assembly, valve body (Pos. 60), bonnet flange (Pos. 64), and flange O-ring of custom

made valve body (O-ring size indicated on dimensional drawing) are supplied on request. Please indicate fabrication

number or ordering number and drawing number of the product in question to help identify the required part.

Gate with special vulcanized sealing material and/or special surface treatment, SEMI sizes

Gate material

Sealing material

32 x 222

46 x 236

50x336

46 x 336

Aluminium

Chemraz® 630

96072-R1

96073-R1

96074-R1

Chemraz® 513

92032-R1

85104-R1

92089-R1

Parofluor® V8514-65

93098-R1

91154-R1

92102-R1

Perfluor black

81063-R1

78510-R1

Silicon red

79416-R1

82625-R1

Silicon transparent

85630-R1

Aluminium hard anodized

VITON®

80499-01

82510-01

95842-R1

89339-R1

Chemraz® 630

99424-R1

Chemraz® 513

88100-R1

Parofluor® V8514-65

96045-R1

Aluminium nickel plated

VITON®

96062-R1

97154-R1

92800-R1

Chemraz® 630

97147-R1

Chemraz® 513

89375-R1

Stainless steel

Chemraz® 630

94106-R1

97077-R1

95483-R1

Chemraz® 513

90151-R1

92057-R1

Not indictated sizes, materials, and surface treatments on request.