Cage guided valve 41005
Due to the balanced plug cage guided valves of the 41005 series can be used at the highest pressure drops. They provide the highest flow capacity among modern cage guided valves, and the materials used ensure reliable operation at high pressures and temperatures.
Technical specifications
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Nominal diameter DN 50 to 600 mm
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Nominal pressure PN 1,6 to 42 MPa
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Operating temperature - 196 to 566 °С
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Flow capacity Сv 10…7000 / Kv 8,6…6020
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Flow characteristic linear / equal percentage
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Rangeability 100:1
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Seat leakage class IV, V, VI according to GOST 9544-2015
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Connection flanged / welded
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Body material carbon steel / cold-resistant steel / heat-resistant steel / stainless steel / corrosion-resistant alloys
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Packing material carbon+PTFE / graphite
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Actuator pneumatic spring-diaphragm / pneumatic piston / electric / manual
Execution options
With a single stage anti-cavitation trim
Suitable for systems with moderate pressure drops. Designed for operation in systems with moderate pressure drops where cavitation or high noise levels are possible. The single-stage trim design provides controlled pressure reduction in one stage, which prevents the formation of vapor bubbles and reduces acoustic oscillations. This design effectively protects valve components from erosion, minimizes vibrations, and ensures smooth, stable flow control with minimal noise.
With a double stage anti-noise trim
Double stage trim design provides gradual pressure reduction and uniform flow distribution, which prevents turbulence and acoustic oscillations. This results in a significant reduction in noise levels without compromising flow capacity, enhances operational comfort and safety, and extends the valve's service life by reducing vibration.
With a multi-stage anti-cavitation VRT type trim
Designed for operation at extremely high pressure drops, where there is a risk of intense cavitation and erosive wear. The VRT (Variable Resistance Trim) valve features several sequentially arranged throttling stages, each of which progressively reduces the working medium's pressure. This design ensures smooth dissipation of flow energy, prevents the formation of vapor bubbles and shock waves, and reduces noise and vibration. As a result, the valve demonstrates high reliability, stable control, and a long service life, even under the most severe operating conditions.
With additional balanced plug providing reliable tightness at high temperature
Designed for high-temperature and significant pressure drop applications requiring enhanced tightness in the trim. The additional balanced plug reduces axial load on the sealing surfaces, ensuring even pressure distribution and stable contact between the plug and the seat. This achieves reliable tightness, reduced wear of sealing components, and extended valve service life in systems with large temperature variations.
With various types of sealing rings
It allows the valve to be adapted to specific operating conditions and requirements for the level of tightness. Depending on temperature, pressure, and media properties, seals made of PTFE, graphite, Viton, or other elastomers are used, providing an optimal combination of resistance, elasticity, and wear resistance. This design solution ensures a high degree of tightness, reduces leaks, and increases the valve's durability when operating across a wide range of technological parameters.
With a multi-stage, labyrinth-type anti-cavitation trim
Designed for operation under high pressure drops and the risk of intense cavitation. The labyrinth design of the trim provides consistent throttling of the flow through a system of channels and orifices, ensuring a smooth, step-by-step pressure reduction and preventing the formation of vapor bubbles. Through uniform distribution of flow energy and the elimination of localized cavitation zones, it achieves minimal noise, vibrations, and erosion, along with an extended service life for the seat and plug, while maintaining stable control characteristics.
With backup O-rings on the packing follower
Provides enhanced tightness of the stem assembly and protects the environment from potential leaks. Additional O-rings work in conjunction with the main gland seal to create a double barrier that maintains tightness even under wear or pressure fluctuations. This design is particularly effective when handling toxic, volatile, or valuable media, ensuring reliability, stability, and a long service life without frequent maintenance.
Fast response with the use of a special positioner
It is designed for systems where an instant reaction of the valve to a change in the control signal is required. The use of a high-precision positioner or booster relay provides a significant reduction in response time without loss of regulation stability. This design is optimal for emergency, start-up and dynamic processes where accuracy and response speed are important, ensuring reliability, repeatability and stability of the valve in all modes.
In accordance with the requirements of the NACE MR 0103/01-75 standard for media containing hydrogen sulfide
This valve is built with corrosion-resistant materials and a robust design to withstand hydrogen sulfide. It guarantees long-term durability and dependable performance in aggressive environments where selective or general corrosive wear may occur, adhering to NACE MR 0103/01-75 standards for the oil and gas and chemical industries.
With adaptation to an aggressive environment containing corrosive gases or acid vapors, as well as the marine atmosphere
The valve is constructed with materials and protective coatings that ensure resistance to corrosion and durability when operating in aggressive industrial and coastal environments. It ensures dependable operation in environments containing acidic or corrosive gases and high marine air humidity.
With a leak-off packing
The valve is equipped with a control system for detecting and diverting minor leaks through the gland packing, which prevents the working fluid from entering the environment and enhances operational safety. This design allows for prompt detection and control of leaks, reducing the risk of accidents and the need for frequent maintenance.
High-resistance materials
Ensure reliable performance in challenging conditions.
Features
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Wide range of trim design optionsAllows to find the right solution for various combinations of high pressure drop and ambient temperatures.
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High-strength materialsEnsure trouble-free operation in difficult operating conditions