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Summary of Contents for PERSTA 240 MT
- Page 1 Operating instructions Lift check valve 240 MT Read the instructions prior to performing any task!
- Page 2 Stahl-Armaturen PERSTA GmbH Mülheimer Str. 18 59581 Warstein-Belecke GERMANY Telephone: +49 2902 762-02 Fax: +49 2902 767-03 Email: info@persta.de Internet: www.persta.com Translation of the original operating instructions Dok.-Nr. 6420.DE.STD.11.2016, 2, en_GB © Stahl-Armaturen PERSTA GmbH 2016 Lift check valve 240 MT 20.05.2021...
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Page 3: Supplemental Directives
Connection diagram included in the delivery Hazard analysis as per the PED Risk analysis as per the Machinery Directive Technical data sheet Bolt tightening torques according to the website: www.persta.com And other documents included in the delivery 20.05.2021 Lift check valve 240 MT... - Page 4 Mülheimer Str. 18 turen PERSTA GmbH 59581 Warstein-Belecke GERMANY Phone: +49 2902 762-900 Fax: +49 2902 767-03 e-mail: info@persta.de Revision overview Revision number Change/Supplemented informa- Date tion “ Intended Updates to chapter 05/05/2021 use”. Lift check valve 240 MT 20.05.2021...
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Page 5: Table Of Contents
5.4.4 Applying thermal insulation........37 Initial start-up..............39 6.1 Safety instructions for initial start-up......39 6.2 Prior to commissioning..........41 6.3 Carrying out initial start-up.......... 41 Maintenance..............43 7.1 Safety instructions for maintenance......43 20.05.2021 Lift check valve 240 MT... - Page 6 7.4 Replace the gasket ring..........48 Faults and troubleshooting..........51 8.1 Safety notices for fault correction....... 51 8.2 Fault table..............53 Removal, disposal............55 9.1 Safety instructions for dismantling......55 9.2 Removal..............57 9.3 Disposal..............58 Index................... 59 Lift check valve 240 MT 20.05.2021...
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Page 7: Overview
Overview Overview Fig. 1: Lift check valve 240 MT Brief description of the lift check The valve designated as a lift check valve is designed for installa- valve tion in pipes. The lift check valve ensures that the medium can flow in only one direction (Fig. - Page 8 Forklift with sufficient load-bearing capacity for transport of valves. Hoist Hoist with sufficient load-bearing capacity for transporting valves and components. Sling gear Functional and approved gear for attaching valves and compo- nents on the hoist. Lift check valve 240 MT 20.05.2021...
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Page 9: Safety
Safety instructions may refer to specific, individual instructions. instructions Such safety instructions are integrated into the specific instruction, so that the flow of reading is not interrupted during performance of the task. The signal words described above are used. 20.05.2021 Lift check valve 240 MT... - Page 10 Symbol Explanation Step-by-step instructions ð Results of an action References to sections of these operating instructions and other applicable docu- ments Lists without a defined sequence Lift check valve 240 MT 20.05.2021...
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Page 11: Intended Use
Intended use includes compliance with all the information con- tained in this manual. Any use that deviates from the intended use or any other form of use constitutes misuse. 20.05.2021 Lift check valve 240 MT... -
Page 12: Safety Signs
Rating plate The rating plate is on the valve. Depending on the version, the fol- lowing information is on the rating plate: Confirmation number Article number Year of manufacture Nominal diameter Nominal pressure/design data Lift check valve 240 MT 20.05.2021... -
Page 13: Residual Risks
Depending on the version the valve can be used in hazardous areas. There is life-threatening danger if the rules of behaviour are not complied with within these areas. – Ensure that tasks on the valve can be executed at the installation site. 20.05.2021 Lift check valve 240 MT... -
Page 14: Mechanical Hazards
– Uniformly detach the check valve cover from the stud bolts. – Slowly take off the check valve cover. – Wear protective equipment: Wear a hard hat, safety footwear, protective goggles. Lift check valve 240 MT 20.05.2021... -
Page 15: Thermal Hazards
– If threaded connections are loose, inform the operating company and have the pipe section in question shut-off. – If threaded connections are loose have the cause of this clarified and rectified. If necessary have the manufacturer check the valve. 20.05.2021 Lift check valve 240 MT... - Page 16 – Wear protective equipment: Protective gloves, safety footwear, protective goggles, protective work clothing. – Soak up escaped anticorrosive without delay and dispose of it in an environmentally respon- sible manner. Lift check valve 240 MT 20.05.2021...
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Page 17: Behaviour In The Event Of An Emergency
The operating company must ensure that all personnel who are to handle the valve have read and understood this manual. In addition, the operating company must train the personnel and inform them of the hazards at regular intervals. 20.05.2021 Lift check valve 240 MT... -
Page 18: Personnel Requirements
Lift check valve 240 MT 20.05.2021... - Page 19 Persons whose ability to react is impaired, for example through drugs, alcohol or medication, are not acceptable. Comply with the age-specific and job-specific regulations that apply at the location when selecting personnel. 20.05.2021 Lift check valve 240 MT...
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Page 20: Personal Protective Equipment
Description of the personal protec- The personal protective equipment is described below: tive equipment Chemical resistant safety gloves Chemical resistant safety gloves are intended to protect hands against aggressive chemicals. Lift check valve 240 MT 20.05.2021... -
Page 21: Spare Parts
– Only use genuine spare parts from Stahl-Arma- turen PERSTA GmbH or spare parts approved by Stahl-Armaturen PERSTA GmbH. – If you have any questions or if anything is unclear, do not hesitate to contact our customer service department (contact details on page 3). - Page 22 Storage of spare parts Ä Chapter 4.4 “Storage of spare parts” Please see on page 31 for information on storing spare parts. Ordering spare parts Order spare parts from Stahl-Armaturen PERSTA GmbH. Provide the following information: Valve type Year of manufacture Nominal diameter...
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Page 23: Environmental Protection
Substances used The following substances harmful to the environment occur during handling of the valve: Residue of the pipeline medium Pickling medium Anticorrosive 20.05.2021 Lift check valve 240 MT... - Page 24 Safety Environmental protection Lift check valve 240 MT 20.05.2021...
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Page 25: Functional Description
When the flow direction of the pipeline medium is reversed ( the check valve disk closes the valve. 20.05.2021 Lift check valve 240 MT... -
Page 26: External Seal
The required sealing force is generated by the tension of the stud bolts (Fig. 4/2) in the body. This tension is transmitted via the check valve cover (Fig. 4/3) to the underlying gasket ring (Fig. 4/1). Lift check valve 240 MT 20.05.2021... -
Page 27: Shut-Off Element
(no medium in the pipe, or pressure of the medium too low), separating the valve’s inlet side from its outlet side. Fig. 6: Guide bush 20.05.2021 Lift check valve 240 MT... -
Page 28: Connections
Functional description Connections 3.4 Connections Connection in the pipe Depending on the version, the lift check valve can be mounted in the pipe as Butt-weld valve Flanged valve Socket weld, Special connection valve Lift check valve 240 MT 20.05.2021... -
Page 29: Transport And Storage
– If present: Use the provided ring bolts and ring nuts. – Protect valves from impacts. – Do not throw valves. – Only remove the packaging just before installa- tion. 20.05.2021 Lift check valve 240 MT... -
Page 30: Transport Of Packages
Sling gear Hoist Forklift Ensure that the valve is fixed in place on the pallet. Transport the pallet to the installation location. Unload heavy valves from the pallet with a suitable hoist and further transport. Lift check valve 240 MT 20.05.2021... -
Page 31: Storage Of The Valve
Incorrect storage of soft-sealing spare parts can reduce the service life. – Store soft-sealing elements, plastics or lubri- cants in a dry location at room temperature where they are protected against light. 20.05.2021 Lift check valve 240 MT... - Page 32 Transport and storage Storage of spare parts Lift check valve 240 MT 20.05.2021...
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Page 33: Installation
An incorrect alignment can result in the entire plant malfunctioning. – Install the valve in accordance with the flow Ä “Flow direction arrow” direction arrow ( on page 13) and the flow direction in the pipe. 20.05.2021 Lift check valve 240 MT... -
Page 34: Before The Installation
Depending on the type of connection, weld in or flange on valve in the correct flow direction and installation position. Screw fasten all flange bores with connection elements using the permissible tightening torque. Ensure the seal of the pipe and the valve. Lift check valve 240 MT 20.05.2021... -
Page 35: After The Installation
– Wear protective equipment: Protective gloves, safety footwear, protective goggles, protective work clothing. – Soak up escaped anticorrosive without delay and dispose of it in an environmentally respon- sible manner. 20.05.2021 Lift check valve 240 MT... -
Page 36: Pickling The Valve
Release the pipe after successful tests. For longer idle periods after the hydrostatic pressure test, completely open the valve. For longer idle periods after the hydrostatic pressure test, replace the anticorrosive in consultation with the manufac- turer. Lift check valve 240 MT 20.05.2021... -
Page 37: Applying Thermal Insulation
Protective work clothing Protective gloves Safety footwear If necessary have the thermal insulation fitted by the oper- ating company. Make sure that the check valve cover is permanently acces- sible and capable of being monitored. 20.05.2021 Lift check valve 240 MT... - Page 38 Installation After the installation > Applying thermal insulation Lift check valve 240 MT 20.05.2021...
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Page 39: Initial Start-Up
– Wear protective equipment: Protective gloves, safety footwear, protective goggles, protective work clothing. – Soak up escaped pumping medium without delay and dispose of it in an environmentally responsible manner. 20.05.2021 Lift check valve 240 MT... - Page 40 An incorrect alignment can result in the entire plant malfunctioning. – Install the valve in accordance with the flow Ä “Flow direction arrow” direction arrow ( on page 13) and the flow direction in the pipe. Lift check valve 240 MT 20.05.2021...
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Page 41: Prior To Commissioning
Fill the pipe or open the shut-off pipe section in accordance with the plant-specific heating-up or cooling-down speed. Examine the check valve cover for leaks. Check the pipe connection flanges for leaks. If necessary, recheck tightening torques in accordance with the manufacturer’s/system planner’s specifications. 20.05.2021 Lift check valve 240 MT... - Page 42 Initial start-up Carrying out initial start-up Lift check valve 240 MT 20.05.2021...
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Page 43: Maintenance
– If threaded connections are loose, inform the operating company and have the pipe section in question shut-off. – If threaded connections are loose have the cause of this clarified and rectified. If necessary have the manufacturer check the valve. 20.05.2021 Lift check valve 240 MT... - Page 44 – Uniformly detach the check valve cover from the stud bolts. – Slowly take off the check valve cover. – Wear protective equipment: Hard hat, safety footwear, safety goggles. Lift check valve 240 MT 20.05.2021...
- Page 45 – by contacting Stahl-Armaturen PERSTA GmbH customer service (see p. 4) with refer- ence to the serial number or – by referring to the manufacturer’s website (see p. 3). 20.05.2021 Lift check valve 240 MT...
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Page 46: Maintenance Schedule
If regular inspections indicate increased wear, the required mainte- nance intervals must be reduced in accordance with the actual signs of wear. Contact Stahl-Armaturen PERSTA GmbH customer service (contact details on p. 3) if you have any questions con- cerning maintenance work and intervals. -
Page 47: Visually Check The Valve
7.3 Visually check the valve Personnel: Trained person (operator) Protective equipment: Industrial hard hat Safety goggles Protective work clothing Protective gloves Safety footwear Check the cover for leaks. Check the pipe connection flanges for leaks. 20.05.2021 Lift check valve 240 MT... -
Page 48: Replace The Gasket Ring
Depending on the version of the valve, carefully lift the return valve cover (Fig. 8/2) and its shut-off element (Fig. 8/1) up off the stud bolts together with a second person. Check components for damage, replace if necessary. Fig. 8: Removing the shut-off element Lift check valve 240 MT 20.05.2021... - Page 49 Carry out the work for initial start-up ( Ä Chapter 6.3 “Car- rying out initial start-up” on page 41). Fig. 11: Tightening nuts in a cross pat- tern (number of nuts/stud bolts can vary) 20.05.2021 Lift check valve 240 MT...
- Page 50 Maintenance Replace the gasket ring Lift check valve 240 MT 20.05.2021...
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Page 51: Faults And Troubleshooting
Protective gloves, safety goggles. – Before working on these components, allow them to cool down or warm up to the ambient temperature. – Have thermal insulation attached by the oper- ating company. 20.05.2021 Lift check valve 240 MT... - Page 52 If correction of the fault requires work in the danger zone, secure the system area in question, and depressurise the valve. Have faults that affect the safe operation of the valve cor- rected by the manufacturer. Lift check valve 240 MT 20.05.2021...
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Page 53: Fault Table
Erosion or corrosion, e.g. Have the design of the valve Industrial mechanic (for due to the wrong selec- checked. valves within the normal tion of nominal valve pressure range) width or valve material 20.05.2021 Lift check valve 240 MT... - Page 54 Faults and troubleshooting Fault table Lift check valve 240 MT 20.05.2021...
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Page 55: Removal, Disposal
If necessary, use hoists. – Secure the components so that they do not fall down or fall over. – If in doubt, consult Stahl-Armaturen PERSTA GmbH customer service (contact details on p. Heavy weight of the valve WARNING! - Page 56 – Wear protective equipment: Protective gloves, safety footwear, protective goggles, protective work clothing. – Soak up escaped pumping medium without delay and dispose of it in an environmentally responsible manner. Lift check valve 240 MT 20.05.2021...
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Page 57: Removal
Use a suitable hoist to remove the valve from the pipe and set it down so that it is secured against falling over. Clean the assemblies and components as required, and take them apart. In doing so, comply with local occupational health and safety regulations. 20.05.2021 Lift check valve 240 MT... -
Page 58: Disposal
– If in doubt, contact the local authorities or spe- cialist disposal companies for information regarding the environmentally compatible dis- posal. Lift check valve 240 MT 20.05.2021... -
Page 59: Index
Storage ....... 31 Leaks Cover ......53 20.05.2021 Lift check valve 240 MT... - Page 60 Transporting a pallet ..... 30 Visual inspection ..... 47 Lift check valve 240 MT 20.05.2021...
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