Bellows Sealed Stop Valves
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Overview
The high integrity A3S bellows sealed valve is suitable for use under higher pressure steam, gas, and liquid applications as it is designed to ASME Class 800.
A3S and A3SS Bellows Sealed Stop Valve
Technical Information
Sizes and pipe connection |
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½", ¾", 1", 1¼", 1½" and 2" |
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Screwed BSP (BS 21 parallel), NPT |
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Socket weld to BS 3799 /ANSI B 16.11 |
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Pressure / temperature limits (Class 800) |
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Body design conditions |
Class 800 | |
| PMA | Maximum allowable pressure | 136 bar g |
| TMA | Maximum allowable temperature | 425°C |
| Minimum allowable temperature | -29°C | |
| PMO | Maximum operating pressure | 99 bar g @ 360°C |
| Maximum operating pressure for extended bellows life | 40 bar g @ 400°C | |
| TMO | Maximum operating temperature | 425°C |
| Maximum operating temperature for extended bellows life | 400°C @ 40 bar g | |
| Minimum operating temperature | -29°C | |
| Without the bellows fitted the unit is designed for a maximum cold hydraulic test pressure of: | 212 bar g | |
Technische Fiches
Title
A3S / A3SS - Klepafsluiter - Balgmembraan klepsteelafdichting
Taal
Nederlands
Referentienummer
TI-P132-09
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Installatie & onderhoudsinstructies
Title
A3S - Klepafsluiter - Balgmembraan - ANSI
Taal
Nederlands
Referentienummer
IM-P132-11