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BARDIANI VALVOLE S.P.A.

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Via G. di Vittorio 50/52

43045 - FORNOVO TARO - PR - Tel.: +390525/400044 - Fax.: +390525/3408

Foreword

This “Instruction, Use and Maintenance Manual” forms an integral part of the valve.

Before proceeding with installation, use or maintenance of each type of valve it is compulsory to read and understand this manual.

Keep this manual for future reference.

When using valves which comply with  ATEX Directive 94/9/EC (ATEX) it is compulsory to read the relative manual.

This “Instruction, Use and Maintenance Manual” has been drawn up expressly for expert technical personnel.  Consequently any information 

which can easily be deducted from reading the text and/or examining the illustrations and/or drawings provided herein shall not be the object 

of further explanation.

It being understood that the essential characteristics of the valve type described herein shall remain the same, the manufacturer reserves 

the right to amend and/or integrate and/or update the data and/or information relative to use of the valve provided in the “Instruction, Use and 

Maintenance Manual”, at any time and without prior notice. 

The latest, updated version of the “Instruction, Use and Maintenance Manual” is always available at www.bardiani.com .

The manufacturer shall not in any way be held liable for any consequences resulting from failure to observe all the prescriptions provided in the 

relative manual concerning installation, use, maintenance and care of the product.

All rights are reserved. It is forbidden, without due written authorization from the manufacturer, to copy totally and/or partially and /or transfer 

and/or record any part of this “Instruction, Use and Maintenance Manual” using any means and/or support, including IT and/or electronic and/

or mechanical and/or paper form or any other means or system for recording and/or reusing the information contained herein for any purposes 

other than for the purchaser’s personal use. 

Warranty

1. VALIDITY

Bardiani Valvole S.p.A. guarantees its own products against any design and/or construction and/or material defects and/or faults for a period of

12 (twelve) months from the date of delivery.

Notification of any product defects and/or faults must be sent in writing to Bardiani Valvole S.p.A. within 8 (eight) days of coming to light, providing

adequate documentation of the defect/fault encountered can be provided as evidence.

Any repairs made during the warranty period do not extend said period over the stipulated 12 (twelve) months which remains definite.

2. CONTENTS OF THE WARRANTY

This warranty it to be intended as limited, at the discretion of Bardiani Valvole S.p.A., to the repair and/or replacement of the product and/or part

of the product and/or its components which is/are found to be defective due to design and/or manufacturing and/or material faults.

In the event of repair and/or replacement of the product and/or any one of its parts and/or components, any returned item/s shall become the

property of Bardiani Valvole S.p.A and the relative shipping costs shall be at the expense of Bardiani Valvole S.p.A.

Bardiani Valvole S.p.A., shall be under no obligation to compensate for any immaterial and/or indirect damages and shall in no way be held

liable for consequential damages and/or losses, such as (by way of example only), damages due to loss of business, contracts, opportunities,

time, production, profits, goodwill, image etc..

No retailer or distributor or dealer or agent or representative or employee or person appointed by Bardini Valvole S.p.A. is authorized to make

any amendments and/or integrations and/or extensions to this warranty.

3. EXCLUSIONS FROM THE WARRANTY

All purchaser rights, as established and recognized by law being understood and unaffected, elastomers and electrical components are expressly

excluded from this warranty.

This warranty does not cover design faults whenever a product is built by Bardiani Valvole S.p.A. based on designs and/or technical specifications

provided by the purchaser.

This warranty also does not cover:

- faults and/or defects resulting from incorrect and/or unsuitable and/or improper transport,

- faults and/or defects resulting from installation of the product which fails to observe the indications provided in the “Instruction, Use and

Maintenance Manual” or in any case caused by incorrect and/or unsuitable and/or improper installation,

- faults and/or defects resulting from use and/or maintenance operations and/or storage of the products which fail to observe the prescriptions

provided in the “Instruction, Use and Maintenance Manual” or in any case which are incorrect and/or unsuitable and/or improper,

- faults and/or defects ascribable to normal wear and tear of the product and/or its parts and/or its components,

- faults and/or defects in the product and/or its parts and/or its components whenever interventions and/or repairs have been performed by

persons not authorized by Bardini Valvole S.p.A. and/or who are not suitably qualified,

- faults and/or defects in the product and/or its parts and/or its components ascribable to it being dropped and/or banged and/or dented and/or

misuse and/or tampering and/or breakage and/or accidents caused by negligence and/or lack of care by the purchaser and in general for any

causes not ascribable to design and/or manufacturing and/or material defects,

- faults and/or defects in the product and/or its parts and/or its components ascribable to negligence and/or carelessness and/or lack of care

by the purchaser,

- faults and/or defects in the product and/or its parts and/or its components caused by other events outside the control of Bardiani Valvole S.p.A.

or determined by force majeure 

or mishap.

Recommendations

1. All the information, indications, statements and technical details provided herein are based on test data which Bardiani Valvole S.p.A.

holds to be reliable but which cannot be expected to cover every possible use of the product.

2. The illustrations and drawings provided are all indicative and are not binding, consequently they may not fully match the real appearance

of the products.

3. Being as the conditions of product use and applications cannot be controlled by Bardiani Valvole S.p.A., the purchaser must ascertain

suitability of the use he intends to make of the product beforehand and assume all risks and liabilities which may result from the

same.

4. Customers  are  strongly  advised  to  consult  Bardiani  Valvole  S.p.A.’s  technical-commercial  collaborators  to  request  any  specific

information concerning the technical characteristics of the products.

5. The information provided in this document refers to standard production Bardiani Valvole S.p.A. products and therefore cannot be

considered a basic reference for products built to meet specific requirements.

Summary of Contents for B935

Page 1: ...USE AND MAINTENANCE MANUAL B935 Double Seat Valves GB IST B935 0413...

Page 2: ...d it carefully before using the valve Always keep it for future reference All rights are reserved It is forbidden to reproduce or transit any part of the instruction manual by any means either electro...

Page 3: ...use authorised personal to install operate and service the valve The personal should know the valve and the instruction manual thoroughly ONLY use the valve for the designed purpose ALWAYS handle hea...

Page 4: ...UNPACK AND CHECK VALVE DELIVERY A Complete valve B Instruction manual 3 LIFTING OF HEAVY VALVE Use lifting tool if necessary Fix valve to lifting tool 4 HANDLING OF LOOSE VALVE PARTS Avoid falling loo...

Page 5: ...onnel to install connect the valve Ensure correct air pressure and quality see page 23 Ensure correct electrical supply for Giotto Top see Giotto Top instruction manual 2 DISCONNECT SUPPLIES AFTER USE...

Page 6: ...to Top Valve Dimension 4 Installation 6 VALVE CONNECTIONS UNIONS Ensure tight connections between valve and piping Remember gaskets and fit correctly Tighten unions firmly and carefully 7 WELDING VALV...

Page 7: ...UPPLIES AFTER USE Disconnect air supply Disconnect electrical supply for Giotto Top 3 MOVING VALVE PARTS Never stick fingers into valve ports Never touch the shaft of the valve whilst it is working 5...

Page 8: ...ing Risk of seal damage External leakage Internal leakage with closed valve caused by normal wear External leakage Internal leakage with closed valve occuring earlier than normal wear rate Difficulty...

Page 9: ...sible Alternatively use protective gloves 3 HANDLING OF CLEANING AGENTS Dose cleaning agents regularly to avoid excessive concentration Always rinse carefully with clean water after cleaning Check com...

Page 10: ...SK Atmospheric pressure required 4 PRESSURISED VALVE PIPING Always release fluid pressure from valve and piping before disassembling the valve 5 HOT VALVE PIPING Never touch hot valve or piping if pos...

Page 11: ...gloves if necessary 9 Planned Maintenance 7 REPLACING WORN VALVE PARTS Always use original spare parts See page 12 for spare parts ordering Dispose of worn parts according to current directives Planne...

Page 12: ...rts Ordering NOTE Please copy this page fill it out and fax it to below address BARDIANI VALVOLES S P A Ufficio Ricambi Fax 3905253408 From Valve type Valve type Shipping instructions Month Year of pu...

Page 13: ...Supply air to the central air connection 24 Remove the clamp 33 from lower body 1 and the assembly 35 2 B935 double body Removeairfromthecentralairconnec tion 24 and dismount the bodies 42 and 1 Remo...

Page 14: ...A preload the upper piston 66 Unscrew the nut 77 using a wrench specially made and mach the piston 66 until the complete unloaded of the spring 31 This operation must be carried out with great care by...

Page 15: ...m the stopper 18 14 Remove the seal rings 4 from the central piston 13 15 Unscrew the socket screw 34 disassemble the part assembly 35 the lower piston 53 the adjusting sleeve 58 from the cylinder 9 1...

Page 16: ...B935 GB IST B935 0413 16 24 The Company BARDIANI VALVOLE reserves the right to modify its products at any time without prior notice 11 Disassembly of B935...

Page 17: ...The Company BARDIANI VALVOLE reserves the right to modify its products at any time without prior notice GB IST B935 0413 17 24 11 Disassembly of B935 B935 double body...

Page 18: ...cylindrical object to push this rings in the cross way Also insert the seal ring 240 and the guide bushing 193 3 Insert the seal rings 60 and 70 and the guide bushing 106 in the sealing ring disc 50 5...

Page 19: ...sembling so that the tab with BARDIANI symbol was aligned with the air connections 8 Insert the seal rings 16 and 19 and the guide bushing 17 in the stopper 18 9 Insert the seal rings 83 in the adjus...

Page 20: ...ith an allen wrench the shaft 11 and screw the spring block on it 16 Using a press with a plug specially made for the ope ration A preload the stopper 18 Screw the socket screw 101 in the cylinder 9 T...

Page 21: ...mbly part 35 and closing everything with the clamp 33 Remove air from the air connection 24 21 B935 double body Insert on the plug 52 the seal ring 126 and assembly it on the lower body 1 closing ever...

Page 22: ...ston 90 Seal ring 14 Seal ring 91 Seal ring 16 Seal ring 94 Seal ring 17 Guide bushing 101 Bolt 18 Stopper 106 Guide bushing 19 Seal ring 108 Seal ring 24 Lower connection 120 Guide bushing 31 Spring...

Page 23: ...or Specifications Connectors 1 8 BSP Air pressure from 6 bar 87psi to 8 bar 116psi Material AISI 304L 1 4307 Seal gasket material NBR Power supply Giotto Top See Giotto Top Instruction manual PED Dire...

Page 24: ...example only damages due to loss of business contracts opportunities time production profits goodwill image etc No retailer or distributor or dealer or agent or representative or employee or person ap...

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