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1847050/3
IM-P184-17
CMGT Issue 3
BSA3HP
Bellows Sealed High Pressure Stop Valve
Installation and Maintenance Instructions
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. Spare parts
© Copyright 2019
IM-P184-17 CMGT Issue 3
1
Printed in GB
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Summary of Contents for Spirax Sarco BSA3HP
- Page 1 1847050/3 IM-P184-17 CMGT Issue 3 BSA3HP Bellows Sealed High Pressure Stop Valve Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Commissioning 5. Operation 6. Maintenance 7. Spare parts © Copyright 2019 IM-P184-17 CMGT Issue 3...
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Page 2: Safety Information
Group 2 of the above mentioned Pressure Equipment Directive. The products' use on other fluids may be possible but, if this is contemplated, Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered. - Page 3 1.9 Tools and consumables Before starting work ensure that you have suitable tools and/or consumables available. Use only genuine Spirax Sarco replacement parts. 1.10 Protective clothing Consider whether you and/or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and dangers to eyes and face.
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Page 4: Residual Hazards
Customers and stockists are reminded that under EC Health, Safety and Environment Law, when returning products to Spirax Sarco they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health, safety or environmental risk. -
Page 5: General Product Information
2.1 General description The BSA3HP is a carbon steel bodied high pressure in-line non throttling stop valve, having a multi-ply bellows and unbalanced or balanced options. These valves are rated to EN 1092 PN100 or ASME class 600 for use with both saturated and superheated steam applications and a range of other industrial gases and fluids. -
Page 6: Seat Leakage
2.2 Sizes and pipe connections DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80 and DN100 Flanged EN 1092 PN100 and ½", ¾", 1", 1¼", 1½", 2", 2½", 3" and 4" Flanged ASME class 600 2.3 Seat leakage Plug to seat shut-off conforms to EN 12266-1 Rate A leakage. 2.4 K values DN15... - Page 7 Pressure psi g Class 600 1000 1200 1400 A-D-E Steam saturation curve 102.1 Pressure bar g The product must not be used in this region or beyond the parameter of the PMA or TMA of the relative end connection. Body design condition Class 600 Maximum allowable pressure 102.1 bar g @ 38 °C...
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Page 8: Installation
3. Installation Note: Before actioning any installation observe the 'Safety information' in Section 1. Referring to the Installation and Maintenance Instructions, name-plate and Technical Information Sheet, check that the product is suitable for the intended installation: Check materials, pressure and temperature and their maximum values. If the maximum operating limit of the product is lower than that of the system in which it is being fitted, ensure that a safety device is included in the system to prevent overpressurisation. -
Page 9: Operation
Spirax Sarco BSA valves are fitted with a position indicator which can be found on the stem, and on the bonnet support pillars (+ = fully open/- = fully closed). -
Page 10: Maintenance
6. Maintenance All the internals of the bellows sealed valve can be replaced (See Section 7, Spare par ts). Note: Before actioning any maintenance programme observe the data in Section 1 'Safety information'. Warning Before undertaking any maintenance on the valve, ensure that any pressure is isolated and safely vented to atmospheric pressure. -
Page 11: Recommended Tightening Torques
Recommended tightening torques Valve size lbf ft inch DN15-DN25 22 A/F ½" UNC-13 66.4 DN32-DN50 27 A/F 5/8" UNC-11 99.6 DN65-DN100 32 A/F ¾" UNC-10 177.0 Section 6.2 Fig. 6 is continued on page 12 IM-P184-17 CMGT Issue 3... - Page 12 Carefully remove the old gaskets (22) and clean the contact surfaces of the bellows housing. Also ensure that the mating surfaces of the body and bonnet are clean and free of dirt. Remove the support cage (3) from inside the body. Lift the seat (2) from the body.
- Page 13 36. Tighten the bonnet nuts (20) in sequence to approximately half of the full torque. 37. Repeat instructions 34, 35 and 36, but tightening the bonnets to full torque setting. 38. Hand-tighten gland nut (11) after valve has been fully assembled. 39.
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Page 14: Spare Parts
'Available spares' and state the size and type of stop valve (balanced or unbalanced). Example: 1 - Seat, plug, stem and bellows assembly for an unbalanced DN15 Spirax Sarco BSA3HP bellows sealed high pressure stop valve having EN1092 PN100 connections. Fig. 8 DN25 PN100 BSA3HP shown... -
Page 15: How To Order
How to order Example: 1 off DN25 Spirax Sarco type BSA3HP bellows sealed high pressure stop valve, flanged ASME 600. Note: Should the differential pressure exceed those listed against the respective sizes in the table below, then please ensure balancing discs are specified for use in the valves (see the illustration opposite). - Page 16 IM-P184-17 CMGT Issue 3...
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