Application situation: The heavy load, used in normal and very bad operating mode, achieved the goal of reduces the noise and the air defense destruction and multistage falls pressure and strength the anti-cavitation ability. Specially aims at the high differential pressure of each kind of different operating mode realization many kinds of plans combination. Suitable temperature arrange:-196~+538°C, with balance seal ring-198~+538°C.
510D Labyrinth Cage type control valve has the special flow channel mouth design in the labyrinth gasket, establishes the flow rate characteristic of approximate equal percentage or approximately linear.
510D labyrinth type valve cage structure prevents the demolition of the air bubble far from the metal surface by controlling the area and extent of fluid cavitation, reduces the damage to trim form cavitation effectively, achieves the throttle, the proliferation, and the inflation fluid goal designs enough layer to maintain the low speed of flow to realize the pressure gradually to reduce, thus reduces the noise and the pressure, prevents the cavitation effectively, reduces the influence of the flash vaporization to the trim grew the trim service life.
The modular design enables it to have interchangeability with the ordinary valve trim, to satisfy with higher leakage level may adopt an unbalanced plug.
- Standard Bonnet
Chart ( a ) is a normal bonnet standard type, can seal the body and connect to the actuator, which suitable temperature range is -20~230°C.
- Long-Extension Bonnet
Chart ( b ) is a long-extension bonnet type, design for cryogenic service, which suitable temperature is -196~538°C, this kind of bonnet can protect the packing and actuator effectively, adopts the low-temperature material which can bear impact and suitable for different temperature requirement.
- Fin-Extension Bonnet
Chart ( c ) is a fin-extension bonnet type, design for high-temperature service, chooses special material, the maximum temperature can bear 750°C.
- Bellows Bonnet
Chart ( d ) is a bellows bonnet type,
which is used the situation that not allow the any leakage around the stem, when the fluid is flammable, virulent,
easy to explode, radioactive, precious, or fast to damage the padding, generally speaking, we’ll choose bellows bonnet type, and it also uses in under the vacuum to prevent leakage.