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valves |
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HATTERSLEY HEATON |
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FORGED STEEL *** |
EMISSION FREE VALVES - 100% HELIUM TESTED |
| A new API Class 800 compact bellows sealed gate and globe valve has been introduced by Hattersley Heaton. Every bellows unit is subjected to rigorous testing and, to ensure a guaranteed life of 3000 cycles (gate) and 10000 cycles (globe) at maximum pressure conditions, extensive development work and destructive bellows testing is carried out. |
| KEY BENEFITS Every single valve bellows assembly certified zero leak to atmosphere-qualified by mass spectrometer helium testing calibrated to detect 10-1 cc/see.Minimum cycle life qualified by 3rd party witnessed fatigue testing. Seal welded seats for maximum integrity (gate valve). Integral hardfaced seats (globe valve). Originally developed for the nuclear industry in 1957 to handle hot carbon dioxide gas, our bellows sealed valves are now used worldwide by the oil, petrochemical and power industries. Bellows sealed valves offer 100% sealing of fluids which are hazardous, inflammable, explosive, toxic, noxious, expensive or I unsightly. We can advise you of the suitability of bellows sealed products for any application you may have. |
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The duties that bellows sealed valves are used in include: STEAM CLASS 800 BELLOWS SEALED GATE VALVE Socket weld ends, hardfaced seat & Wedge Fig C/8084/31 Threaded NPT female ends, hardfaced seats & wedge Fig C/8084/21 CLASS 800 BELLOWS SEALED GLOBE VALVE Socket weld ends, hardfaced.seat & disk Fig C4084/31 Threaded NPT female ends Fig C4084/21 |
VARCO, for all your valve needs, sales and service
, for all your valve needs, sales and service
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