background image

 

 
 
 

____________________________________________________________________________________ 

STI S.r.l.

 

– Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY        www.imi-critical.com 

 
Manual 2071, rev.07 02/2019 

– BV

 

 

5.6  Installation 

Warning 

Before  proceeding  with  any  installation,  the  following  instructions  must  be 
respected: 

Always  wear  protective  clothing,  gloves,  and  eyewear  to  prevent  personal 
injury; 

Check  with  your  process  or  safety  engineer  for  any  additional measures  that 
must be taken to protect against process media.

 

 

5.6.1  Checks to be performed before installation 

-  Check that the coupling dimensions meet the specified coupling dimensions. 

-  Prepare the necessary tools for the assembly and setting of the unit. 

-  Check that the outer surface of the BV is free from dust and dirt. 
-  Clean the BV surfaces and remove anything that might prevent a perfect adherence. 

 

5.6.2  Assembling of the BV 

Threading 

Material 

Tightening torque [Nm] 

M8 

8.8 

25 

A4-70 

20 

 

5.6.3  Pneumatic connections 

Warning 

Check  that  the  values  of  pneumatic  supply  available  are  compatible  with  those 
reported  on  the  identification  plate  of  the  BV.  Use  pipes  and  connections 
appropriate as for type, rating, material and dimensions. The connection should be 
made by qualified staff. 

 

-

  Properly deburr the ends of rigid pipes. 

-

  Properly  clean  the  interior  of  pipes  sending  through  them  plenty  of  the  supply  fluid  used  in  the 

system. 

-

  Mould  and  fasten  the  connection  pipes  so  that  no  irregular  strains  at  entries  or  loosening  of 

threaded connections occur. 

-

  Use  pipe  sealant  sparingly  and  only  on  male  threads.  A  non-hardening  sealant  is  strongly 

recommended. 

-

  Make the connections according to the operating diagram. 

-

  Check the absence of leakages from pneumatic connections. If necessary, tighten the nuts of the 

pipe-fittings. 

Summary of Contents for STI BV

Page 1: ...BV BIG VOLUME BOOSTER INSTRUCTION MANUAL 2071...

Page 2: ...Description Compiled Approved 19 02 2019 7 Changed Label N Mores G Alfieri 30 11 2017 6 Certificate Renewal N Mores G Alfieri 08 10 2014 5 Changed address N Zenoni F Tondolo 04 04 2014 4 Added informa...

Page 3: ...ICAL DATA 4 4 LABEL 4 5 INSTALLATION 5 5 1 TRANSPORT 5 5 2 RECEPTION 5 5 3 STORAGE 5 5 4 REQUIREMENTS OF STABILITY 5 5 5 DOCUMENTS AND DIMENSIONAL DRAWINGS 5 5 6 INSTALLATION 6 5 7 DISASSEMBLING 7 6 O...

Page 4: ...____________________________________________________________________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV iii...

Page 5: ...aggi 15 24040 Levate BG Italy Tel 39 035 2928 2 Fax 39 035 2928 247 imisti sales imi critical com 1 4 Terms and conditions STI S r l guarantees each single product to be free from defects and to confo...

Page 6: ...irective PED 2014 34 UE Equipments used in potentially explosive atmospheres ATEX 1 7 Symbology Used 1 7 1 Signs of warning Be careful where these symbols are shown they indicate a potentially hazardo...

Page 7: ...f an actuator by increasing the air mass flow to the cylinder or by reducing the air mass flow from the same cylinder Designed to meet high control applications STI series BV relay produces a high vol...

Page 8: ...ctions Plug in 1 NPTF Plug in 1 NPTF Outlet connections Plug in Plug in Signal connection NPTF NPTF Extreme Operating Temperature Range 60 100 C 60 100 C Design pressure 12 bar 12 bar Operating pressu...

Page 9: ...ta reported on a specific Test Report In order to maintain these characteristics until the BV is installed on site proper attention must be observed for preservation during the storage period If the B...

Page 10: ...surfaces and remove anything that might prevent a perfect adherence 5 6 2 Assembling of the BV Threading Material Tightening torque Nm M8 8 8 25 A4 70 20 5 6 3 Pneumatic connections Warning Check that...

Page 11: ...n is guaranteed trough the fixing screws of the BV If the earthing connection of the system where BV is mounted is not guaranteed it is necessary ensure a directly earthing connection from the screws...

Page 12: ...n the two side of the piston and the working fluid pushes down the piston and the lower shutter allowing the connection between the BV supply chamber and the actuator chamber In this case the lower sh...

Page 13: ..._______________________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV 9 Figure 4 charge setup stand by mode PILOT ACTUATOR Val...

Page 14: ...______________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV 10 Figure 5 charge setup modulating mode PILOT ACTUATOR PRESSURE...

Page 15: ...________________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV 11 Figure 6 charge setup on off mode PILOT ACTUATOR PRESSURE LI...

Page 16: ..._____________________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV 12 Figure 7 discharge setup stand by mode ACTUATOR PILOT V...

Page 17: ...______________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV 13 Figure 8 discharge setup modulating mode ACTUATOR PILOT ENVIRO...

Page 18: ...________________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 2071 rev 07 02 2019 BV 14 Figure 9 discharge setup on off mode ACTUATOR PILOT ENVIRONM...

Page 19: ...ual It is the sole responsibility of the operator to ensure that the local health and safety regulations are adhered to BV is designed in accordance with the applicable International Rules and Specifi...

Page 20: ...BV proceed as follows check that the pressure and quality of the air supply filtering degree dehydration are as prescribed check that there are not leak in the pneumatic connections If necessary tigh...

Page 21: ...y repairing and final test 8 5 Mechanism Lubrication RHEOLUBE 361F or equivalent SYNTHY 101 or equivalent To be used low temperature conditions 60 C 120 C Color Light tan Appearance Smooth NLGI grade...

Page 22: ...piston 10 1 Piston bush 11 1 Piston Washer 12 1 Valve shutter 13 1 Valve seat 14 1 Compensator sliding ring 15 1 Piston sliding ring 16 2 Sealing ring OR 108 17 1 Sealing ring OR 2062 18 1 Sealing ri...

Page 23: ...neumatic supply Check supply line Low supply pressure Adjust supply pressure Uncorrected valve shutter adjustment See Instruction for the operator Defective internal component shutters piston etc Call...

Page 24: ...cialist waste disposal companies Oil and grease Yes Yes May require special treatment before disposal use specialist waste disposal companies Important In all cases check local authority regulation be...

Page 25: ...ision Via San Francesco 18 29017 Fiorenzuola d Arda PC Italy Tel 39 035 2928 2 Fax 39 0523 1715 295 IMI Critical Engineering Lakeside Solihull Parkway Birmingham Business Park Birmingham B37 7XZ Unite...

Reviews: