Table of Contents
Related Manuals for CARRARO UBS Series
Summary of Contents for CARRARO UBS Series
- Page 1 I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S IMI0011E.doc 20090 SEGRATE (MI)- via E.Fermi E-MAIL: info@carrarovalvole.it Rev.7 03/06/10 TEL.(02) 269912.1 - FAX.(02) 2692.2452 Page 1 of 24...
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Page 2: Table Of Contents
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S MAIN INDEX Page General information .................... 3 Guarantee ......................3 Validity of instructions..................3 Product safety indications and tag system ............4 Safety warnings .................... -
Page 3: General Information
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S GENERAL INFORMATION 1.1 – RIGHT TO MAKE MODIFICATIONS AND "COPYRIGHT" The regulations, standards, etc. mentioned in these operating instructions are based on the knowledge that was available when they were drawn up and are not subject to modification. -
Page 4: Product Safety Indications And Tag System
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S PRODUCT SAFETY INDICATIONS AND TAG SYSTEM If and where appropriate, safety indications have been put inside tags on the sides of the pages of this manual. -
Page 5: Safety Warnings
CARRARO is unable to know, assess and inform customers or users of all the conceivable methods of performing maintenance operations and all the risks deriving from the use of such methods. -
Page 6: Safety Precautions
° Please consult CARRARO before working on valve parts. IMI0011E.doc 20090 SEGRATE (MI)- via E.Fermi E-MAIL: info@carrarovalvole.it... -
Page 7: Transport, Storage And Handling
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S TRANSPORT, STORAGE AND HANDLING Transport Depending on their size, valves can be transported loose, packed in cardboard boxes or in wooden crates. All the valve ends are fitted with covers to prevent dirt from entering. -
Page 8: Cross-Section Drawing
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 8 UBS – UBS/V Cross-section drawing ATEX Construction Gr. II Cat. 2 IMI0011E.doc 20090 SEGRATE (MI)- via E.Fermi E-MAIL: info@carrarovalvole.it Rev.7 03/06/10... -
Page 9: Installation
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S Figs.1-2-3-4-5 and Part. "A"-"B" show the cross-sections of UBS and UBS/V valves together with part names and versions. INSTALLATION 8.2.1 The UBS and UBS/V valves must be installed with the servomotor (2) facing upwards and the... - Page 10 I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 8.2.4 Please bear in mind that the regulated pressure sensing is located inside the valve, for which reason the pressure drops in the piping connecting the valve to the ambient under control must be added to the calibration pressure value.
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Page 11: Start-Up And Calibration
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S Fig.A START-UP AND CALIBRATION (Fig. 1÷5) Regulation equipment is normally supplied calibrated to the value indicated in the order; the set pressure must be checked in real operating conditions. -
Page 12: Maintenance
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S MAINTENANCE (see Figs.1-2-3-4-5) 8.4.1 If the regulated fluid is clean and the plant is fitted with a filter, maintenance operations will be infrequent occurrences. - Page 13 I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S N.B.: After each maintenance operation, replenish your stock of spare parts by reordering used items. ATTENTION! When welding piping, do not attach the earth connector to the valve as this may damage important sliding parts.
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Page 14: Cross-Section Drawing
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 9 UBS/Vu – UBS/V/Vu Cross-section drawing Fig.8 IMI0011E.doc 20090 SEGRATE (MI)- via E.Fermi E-MAIL: info@carrarovalvole.it Rev.7 03/06/10 TEL.(02) 269912.1 - FAX.(02) 2692.2452 Page 14 of 24... -
Page 15: Installation
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S INSTALLATION 9.2.1 Before installing the valve, remove the plastic covers protecting the flanges or connectors. 9.2.2 Make sure the data indicated on the rating plate corresponds to operating conditions ATTENTION! Check that the maximum positive pressure that can occur in the equipment being protected does not exceed the following... -
Page 16: Start-Up And Calibration
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 9.2.4 Before mounting the valve on the piping, make sure the insides of the pipes are scrupulously clean, especially the upline section; blow down the piping if possible to eliminate any remaining dirt: small drops of solder may seriously damage the valve. - Page 17 I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 9.4.2 DISMOUNTING THE COMPONENTS (Fig. 8) 9.4.3 Dismounting the servomotor Remove the cap (28) and release the spring by unscrewing the adjustment screw (13) after loosening the lock nut (14), leaving it in position or noting down its position on the adjustment screw in order to restore set pressure after assembly.
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Page 18: Operating Faults
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S OPERATING FAULTS Some faults that may occur during operation together with the action to take are shown below. FAULT REASON ACTION... -
Page 19: Cross-Section Drawing Ubs/D1 - Ubs/V/D1
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 10) UBS/D 10.1 Cross-section drawing UBS/D1 – UBS/V/D1 (Fig. 10) IMI0011E.doc 20090 SEGRATE (MI)- via E.Fermi E-MAIL: info@carrarovalvole.it Rev.7 03/06/10 TEL.(02) 269912.1 - FAX.(02) 2692.2452 Page 19 of 24... -
Page 20: Cross-Section Drawing Ubs/D2 - Ubs/V/D2
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 10.2 Cross-section drawing UBS/D2 – UBS/V/D2 (Fig. 11) IMI0011E.doc 20090 SEGRATE (MI)- via E.Fermi E-MAIL: info@carrarovalvole.it Rev.7 03/06/10 TEL.(02) 269912.1 - FAX.(02) 2692.2452 Page 20 of 24... -
Page 21: Installation
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S The UBS/D valves comprise two groups of regulators: Group 1: All the group 1 regulators have just one diaphragm; one of the controlled pressures acts under the diaphragm through an internal pressure sensing while the other acts over the diaphragm through a pressure sensing on the spring cover. - Page 22 I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S servomotor, as shown in Figs. 12-13. In that case connect the servomotor to the sensing line upline at a distance of at least 10 times pipe diameter ‘D’.
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Page 23: Start-Up And Calibration
I N S T R U C T I O N S For installing and servicing self-operating pressure regulators U B S 10.4 START-UP AND CALIBRATION (Figs.10-11) This operation is similar for both groups. The regulators are factory calibrated at the set pressure indicated in the order. If necessary is possible to modify the set pressure at operating conditions on the plant as follow. -
Page 24: Repairs
11.3 Rating plate (example) 11.4 To ensure the valves treated in this manual work correctly, they should be serviced by Carraro engineers or by Carraro-authorised Service Centres using original spare parts. ATTENTION! The maker declines all liability for modifications to the product or operations that are not contemplated in this manual.
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