Related Manuals for IMI STI RTQH Series
Summary of Contents for IMI STI RTQH Series
- Page 1 Quarter turn hydraulic actuator RTQH Series Single acting version type RTQHS INSTRUCTION MANUAL 5400...
- Page 2 STI S.r.l has taken every care in collecting and verifying the documentation contained in this Instruction Manual. The information herein contained are reserved property of STI S.r.l. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
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Page 3: Table Of Contents
TROUBLESHOOTING ..........................27 PARTS LIST GENERAL ASSEMBLY ....................... 28 SPARE PARTS ............................34 DECOMMISSIONING..........................35 DECLARATION OF INCORPORATION ....................36 _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com 02/2018 – RTQHS Manual 5400, rev. 05... - Page 4 _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com 02/2018 – RTQHS Manual 5400, rev. 05...
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Page 5: General Information
STI S.r.l. Via Dei Caravaggi 15 24040 Levate (BG) Italy Tel. +39 035 2928.2 Fax +39 035 2928.247 imisti.sales@imi-critical.com 1.3 Manufacturer With respect to Machinery Directive 2006/42/EC the Manufacturer of the described RTQHS actuator series, is STI S.r.l. as specified on the machinery label. -
Page 6: Applicable Standards And Directives
(with protective wear wear a helmet. protect the protect your the possible clothing. protective eyes. hearing. supplementary footwear. signboard) _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 7: Device Description
Actuator centerbody bottom wall is machined with threaded holes to allow actuator mounting on top of valve top-work either directly or, when required, with the interposition of an adaptor flange or a mounting bracket. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 8: Identification Of The Main Parts
Position Indicator Stopper screw assembly for spring cartridge. Fig. 1: Main parts for RTQHS actuator series (Spring to Close configuration) _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 9: Actuator Coding Description
Spring Size 4 Fail action Fail Close Fail Open Accessories Manual handwheel Manual handwheel with reduction Hydraulic hand pump _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 10: Technical Data
It is forbidden to modify the information and the marks without previous written authorization by STI S.r.l. IDENTIFICATION PLATE _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 11: Installation
90° max Fig. 2 – Lifting points for RTQHS actuator series _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 12: Reception
5.5 Interface document and dimensional drawing Hydraulic diagrams, wiring diagrams and dimensional drawing are furnished with document accompanying the actuator. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 13: Installation
When the insert bush has entered the actuator drive sleeve, check the holes / pin of the valve flange meet the actuator holes and pin, otherwise rotate the mounting bracket to obtain a right assembling. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... - Page 14 Alternative bolting permitted i.e. ASTM A193 B8M (or B8M3) for tie rods and ASTM A194 grade 8M for the nuts, provided that yield strength of screws or tie rods is higher than 450 MPa. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 15 If the hearting connection is not guaranteed trough mechanical parts where actuator is mounted, it is necessary ensure a directly hearting connection on provided point of actuator. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
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Page 16: Disassembling
During the disassembling take care that the mounting coupling block is fix on the valve stem to avoid any dangerous situation. Fig. 4 – Disassembling of the actuator from the valve _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 17: Operation And Use
A short list of reasonably foreseeable misuse : Installation in ambient with not planned conditions: i.e. climatic conditions different from the specified conditions; _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 18: Operating Limits
Emissions of hazardous substances where natural gas is used as motive energy. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 19: Instructions For The Operator
To avoid the risk of unsetting the setting screw (5.2) during this last operation, keep the setting screw (5.2) blocked by using an Allen wrench engaged on the on the hexagonal receptacle. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... - Page 20 7.2.2.2 Setting of the stopper on the spring side (Fig. 8) Start this operation with valve in closed or intermediate position. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 21 _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
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Page 22: Manual Override
To restore the automatic function the selector lever must be rotated 90° clockwise towards the position identified by the label REMOTE. LABEL Fig. 9 – HP device _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... - Page 23 In case the actuator is not able to reach fully stroke, verify the position of manual override following the instructions enclosed in the specific Instruction Manuals; remove the label ENGAGED from the handwheels when used. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
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Page 24: Maintenance
If STI products (i.e. gasket, o-ring etc) have been on store for longer periods check these for corrosion or deterioration before using these products. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 25: Special Maintenance
If the actuator need to be disassembled from the valve on site, remove the screws between the actuator and the main valve or adaptor flange or mounting bracket (see Section 5.7 of this Manual). _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... - Page 26 (5.3) on the cylinder side, remove, remove the cylinder (2) and replace the gasket (5.2), before replace cylinder clean the surface of housing and cylinder head flange. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 27 (5.3) on the spring cartridge side, remove the spring cartridge (3) and replace the gasket (5.2), before replace gasket clean the actuator housing surface and spring cartridge head flange. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 28 It is possible to disassemble and replace seals of hydraulic cylinder disconnecting it from the actuator body and bring it in a safe area. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
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Page 29: Repairs
After maintenance operations carry out a few actuator operations to check that its STROKING is regular and that there is no leak through the seals and fittings. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 30: Mechanism Lubrication
Pour Point: < -60 °C Mass density at 15°C: 0,857 kg/l Mass density at 15°C: 0,87 kg/l Table 3 _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 31: Troubleshooting
Wrong adjustment of Re-adjust setting mechanical stops Incorrect position of the valve Wrong electric limit Re-adjust setting switches indication. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 32: Parts List General Assembly
# on the next tables. Important When ordering any other part, please refer to the part item listed on the next tables. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... - Page 33 Alloy steel (*) NBR standard material for temperature range from -30°C up to +100°C. (**) Quantity depends on the model. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 34 6) (*) NBR standard material for temperature range from -30°C up to +100°C. (**) Quantity depends on the model. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 35 Table 6: Stopper assembly for hydraulic cylinder Item Description Material Spare Parts Stainless Steel Protection Washer Stainless steel Setting screw Stainless steel Elastomer Sealing washer _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 36 Half ring Alloy steel Stem Carbon steel Plug Carbon steel End flange Carbon steel Cartridge tube (*) Only when requested _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
- Page 37 Carbon steel Stem Alloy steel Plug Carbon steel End cap Carbon steel Cartridge tube Carbon steel (*) Only when requested _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS...
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Page 38: Spare Parts
Individual kit, including all the recommended spares, can be ordered directly to STI srl provided that serial number of the actuator or specific purchasing order for the original actuator is indicated in the request. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 39: Decommissioning
Important In all cases check local authority regulation before disposal. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... -
Page 40: Declaration Of Incorporation
13 Declaration of Incorporation _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 5400, rev. 05 02/2018 – RTQHS... - Page 42 IMI STI - Headquarters Via Dei Caravaggi 15 24040 Levate (BG) Italy Tel. +39 035 2928.2 Fax +39 035 2928.247 IMI STI – Quarter Turn Division Via San Francesco 18 29017 Fiorenzuola d’Arda (PC) Italy Tel. +39 035 2928.2 Fax +39 0523 1715.295...