Friday . 30 July . 2021

Series 30,000 is a robust valve capable of performing bidirectional zero leakage notwithstanding extreme temperature conditions. Indeed, its all-metal construction, inherently fire resistant, is unaffected by temperature changes và a fully integrated long bonnet keeps packing protected from extreme service temperatures (from -60 °C lớn 450 °C - from -76 °F lớn +842 °F). Furthermore, the flange spot facing ensures flange bolting nut and washer planarity, increases reliability và safety of flanged joints with long term tightness và no re-tightening requirements.

Sealing components

The materials chosen for sealing, coupled with precise machining, significantly contribute to extending the life of the valve sầu. Every Vanessa Series 30,000 valve in basic configuration features a smoothly grinded seat with Stellite® grade 21 weld overlay highly resistant lớn galling, abrasion, erosion & corrosion. The Vanessa seal ring is the key flexible component necessary khổng lồ perform sealing và may be laminated in Duplex (as a minimum) or manufactured as a one-piece solid. Seal rings are easily interchangeable thanks lớn their self-centering ability and the presence of reference pins that simplify assembly. In addition, a dynamic spiral wound gasket ensures an adequate expansion và contraction of the seal ring during opening and closing.


Vanessa valves all cốt truyện the same tryên – a combination of optimized angles, and robust bearings & shafts. Our engineers have sầu developed over four decades each and every component to lớn maximize safety while keeping an extremely streamlined and functional design: The disc is not a sealing element, only a carrier. Being consistent with body toàn thân material, the disc can be exposed to the same màn chơi of abrasion và corrosion of the valve toàn thân without negative sầu effects on tightness và operability. Heavy duty bearings & thrust bearing are designed lớn withstand high pressure loads & wear. Standard reinforced, braided và flexible graphite bearing protectors eliminate the risk of particle intrusion, ensure constant torque demand và increase overall reliability.

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Optional features

Series 30,000 basic configuration is available with several options:

Stellite® is a registered trade name of Deloro

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