Page 1
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 1 de 15 INSTRUCTION MANUAL FOR INSTALLATION, OPERATION, MAINTENANCE AND STORAGE FOR BVALVE BELLOW SEALED GLOBE VALVES model BV2506X Paging 1 | 15 ...
Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 3 de 15 1. General This document applies to the globe bellowsealed valves delivered by BVALVE FSC, S.L.U. 2. Intended use After their installation in a piping system (either between flanges or by welding) the use of the globe valves is exclusively defined as to stop or control the flow of media for on‐off/regulating application within the permissible pressure and temperature limits by manual/actuated operation. Valves are designed and manufactured as per the specification and inputs given by the customer during enquiry or purchase order. Usage of the valve for application other than specified manufacturers is not responsible. 3. Limit conditions for operation ...
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 4 de 15 4. Safety instructions 4.1 General Las válvulas están sujetas a las mismas reglas de seguridad que la tubería donde se vayan a instalar. Por lo tanto, las indicaciones mencionadas en este manual son unas recomendaciones de seguridad añadidas que deben ser consideradas para las válvulas. Figure 1: valve position (fully open) during discharge In case of pressure above design pressure, do not operate the valve under this circumstance, getting away from the affected area and acting on the sources to reduce ...
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 5 de 15 4.2 Safety instructions for the user No es responsabilidad del fabricante y debe ser de obligado cumplimiento por el usuario, que la válvula solo se use según lo requerido por el uso definido descrito en este manual. When a valve is disassembled from the piping system proper care has to be taken in order to avoid possible damage to the serrations, threading of the connecting parts. Carelessness can lead to leakage through connecting parts alter reassembling and danger to life. Danger to life It must be absolutely assured that the selected materials of the parts of the valve are suitable for the handled media. The manufacturer is not responsible for damages of the valve caused by corrosive agents The disregard of this ordinance can lead danger to life and cause damages in the piping system. ...
Essential safety requirements will be marked / punched or riveted with CE marking as per Pressure Equipment Directive 2014/68/EU. 4.3.2 On customer requirement valves will be tagged with TAG numbers as specified by customer. 4.4 Leak detection port Wherever leak detector specified in the contract a leak detector port (Generally ¼” or ½” NPT plug port) will be provided in between the gland packing or in between the packing and the bellow for which a suitable leak detection instrument can be attached. In case of detection of bellow leakage, gland‐packing bolt/nut should be tightened to control the leakage to permissible limits. 5. Instalation, operation and maintenance 5.1 The Globe valve products supplied by BVALVE FSC, S.L.U. may be installed and operated in service conditions suitable to their design and construction and only in accordance with all applicable codes, standards and generally accepted good construction and operation practice. 5.2 Pre‐installation inspection Before installing verify that the valve is suitable for the service in which it is being installed by referring the service tag and nameplate. Disregard of this precautionary measure can lead danger to life for the user and damages in the piping system. Danger to life ...
Page 7
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 7 de 15 5.2.9 Flush the valve fully by keeping the valve in full open position in order to avoid the bellow damage. It is recommended to use temporary strainer before the valve during initial flushing so as to avoid possible damages to seat and trim parts. Figure 2: Valve position (fully open) during flushing 5.3 Installation 5.3.1 Small Globe/Bellows sealed globe valves up to and including nominal size 2”NB (DN50), PN16 and PN40 may be lifted or carried by the hand wheel without damage to the valve. 5.3.2 Larger Globe/Bellows sealed valves DN65 and above, PN16 and higher should be lifted by ...
Page 8
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 8 de 15 Figure 4: lifting and handling for valves DN65 and bigger 5.3.4. MOUNTING ANGLE: During installation of unidirectional valve, orient the valve so that the inlet end will be toward the higher pressure. The direction of flow has been marked as “ ” or “ ” on the body and the preferred pressure end is the inlet of the valve. When possible, Bellow Seal Valves should be installed with the bonnet in a vertical position. It is recommended, not to install bellow sealed valves with the stem upside down in order to prevent the accumulation of debris in the bellow area. It is necessary to ensure that the flow indication on the Globe valve body should be observed and valve should be installed with correct side upstream. ...
Page 9
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 9 de 15 √ Figure 6: installation position for globe valves with vertical spindle orientation √ ...
Page 10
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 10 de 15 Bellow seal Globe valve with pressure relief plug design (Balancing plug) should not be mounted in Horizontal or Vertical pipe lines runs with Horizontal spindle. Warning 5.3.5 Use of balanced plug The use of balanced disc is essential in case of high pressure and bigger size of valve to reduce the effort required to operate the hand wheel. ...
Page 11
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 11 de 15 Figure 10: valve in closed position before starting welding tasks 5.3.12 We suggest selecting the size of the weld rod so as not to increase the temperature of welding more than the body‐bonnet allowable temperature. 5.3.13 Selection of proper welding rod and material to be done by qualified welder as per approved WPS/PQR. The root welding to be done by TIG welding process only. 5.3.14 When insulating valves, avoid insulation above the bonnet packing area. lnsulating above this may result in injury to personnel and damage to valve and property, as gland leakage cannot be detected. 5.3.15 When installing rising stem valves, be sure to allow sufficient clearance for operation and for removal of the stem and bonnet if necessary. 5.3.16 Valve with Gear Box and actuated operation type, make sure that proper support to be given for smooth operation. 11 ...
Page 12
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 12 de 15 5.4 Operation 5.4.1. Replacement of major components, including stem and plug should not be done under field conditions, but should be done only in a properly equipped workshop. ...
Page 13
INSTRUCTIONS INST. OPERATION AND MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 13 de 15 5.4.7. The use of extension rods, levers, wrenches and similar items for operation of valves is strictly not recommended. 5.4.8. The valves with actuators must be properly supported at installation for smooth operation. 5.4.9. If the valve is expected to be in open or closed position for a long duration of time (say 3 months), it is recommended that the valves are opened and closed for at least 3‐5 cycles to maintain integrity of stem movement. This is essential as the valve is seeing high temperatures in thermal ...
MAINTENANCE BV2506X DN15 a DN300 Code Edition Date and responsible Page MAN-2506X-EN 14/01/19 14 de 15 7. Trouble shooting 7.1. During the remedy of the failure section, safety instructions shall be absolutely considered. 7.2. When repairs are necessary, please contact at following email ID: ventas@bvalve.es. Kind of failures Procedure for remedy Notes Leak through body/bonnet Tighten the bolls & nuts while the valve is Spare parts shall be gasket or inlet and outlet still leaking. ordered with all flange connections For spares contact BVALVE FSC S.L.U. indications of the ...
Page 15
Edition Date and responsible Page MAN-2506X-EN 14/01/19 15 de 15 DN Maximum tightening torque for body/Bonnet bolts [N.m] 125 150 200 250 300 Table 2: maximum tightening torque for body/Bonnet bolts and nuts 8. List of spare parts Only spares supplied by BVALVE FSC S.L.U shall be used. The usage of spares from any other sources is not recommended which in turn ceases the warranty. Spare parts mentioned below shall be ordered with all indications of the marking of valve, on which they are used: ‐ Bolt Nuts or fasteners. ‐ Gaskets. ‐ Packing. ‐ Eye Bolts/Cross bolts/Gland Bolts ‐ Handwheel & Handwheel key etc. 15 ...