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KAI WEI XI CHAN PIN FEN LEI

V230Y21/22 Self-operated Micro-pressure Regulating Valve
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Address：No. 1, Linxia Road, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province,china
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V230Y21/22 Self-operated Micro-pressure Regulating Valve

Model：V230Y21/22-10C/V230Y21/22-16C/V230Y21/22-10P/V230Y21/22-16P/V230Y21/22-10R/V230Y21/22-16R
Specification：DN20-DN100
Temperature：≤80℃
Medium：Water, steam, air, nitrogen, oil and other fluids

Pressure：PN1.0、PN1.6
Connection method：flange
Driving method：Self-operated
Material： Cast Steel,Stainless Steel,Duplex Stainless Steel

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V230Y21/22 Self-operated Micro-pressure Regulating ValveOverview

V230Y21/22 self-operated micro-pressure regulating valve is an energy-saving control valve that realizes precise automatic adjustment of extremely small pressures by utilizing the energy of the regulated medium itself without external energy sources. The core of the valve is equipped with a large-area pressure-sensing actuator. Through a pressure-tapping pipe, the weak upstream or downstream pressure signal is introduced into the pressure-sensing diaphragm chamber. This allows the medium pressure to generate a sensitive thrust on the huge diaphragm and form a sensitive dynamic force balance with the high-precision preset spring force. The actuator drives the valve stem in precise displacement according to pressure deviations on the millibar (mbar) scale, changing the flow area between the valve plug and seat to achieve accurate compensation of fluid pressure. It is divided into the nitrogen-supply reducing type (Y21, normally open) for controlling downstream pressure and the nitrogen-venting relief type (Y22, normally closed) for controlling upstream pressure. It typically adopts a soft-seal structure design to ensure bubble-tight sealing integrity and extremely high adjustment sensitivity under ultra-low pressure conditions. V230Y21/22 series micro-pressure regulating valves feature high sensitivity, excellent low-pressure stabilization performance, simple structure, and intrinsic explosion-proof safety. They are widely used in petrochemical tank blanketing systems, industrial kiln gas ratio control, and various precision gas-phase micro-pressure balance systems in the semiconductor and pharmaceutical fields.

Product Image of V230Y21/22 Self-operated Micro-pressure Regulating Valve

V230Y21/22 Self-operated Micro-pressure Regulating ValveCharacteristic

1. Energy-saving self-operated drive:Requires no electricity or air supply. It directly utilizes the pressure energy of the regulated medium (such as nitrogen, air, natural gas, etc.) to drive the actuator, which is energy-saving and significantly reduces the cost of automated piping.
2.Dual micro-pressure control logic:Available in Y21 (downstream supply type, e.g., nitrogen supply valve) and Y22 (upstream venting type, e.g., nitrogen vent valve) forms to flexibly construct tank blanketing systems or other micro-pressure balance conditions.
3.Precision pressure-balanced structure:The valve plug adopts a pressure-balanced design (such as balanced bellows or piston structure), which effectively eliminates the influence of high pressure differential on adjustment accuracy, ensuring stable outlet micro-pressure even when inlet pressure fluctuations are large.
4.Millibar-scale sensitive pressure sensing:The core actuator is equipped with an ultra-large area high-quality pressure-sensing diaphragm, which can accurately sense minute pressure changes as low as millibar (mbar) levels, offering extremely fast dynamic response suitable for precise control under ultra-low pressure.
5.Precise and convenient micro-pressure setting:The valve is equipped with a high-sensitivity adjustment spring, allowing users to easily set target pressure values within a very small range (e.g., 0.5KPa to several KPa) through a fine-tuning nut. Field commissioning is intuitive and efficient.
6.Bubble-tight sealing integrity:The valve plug and seat mostly adopt a soft-seal structure design and undergo precision machining to ensure bubble-level sealing performance during ultra-low pressure shut-off, effectively preventing the leakage and waste of valuable process gases.
7.Intrinsic explosion-proof safety:The adjustment process relies entirely on mechanical physical actions without any electrical signals involved. It possesses inherent safety attributes, particularly suitable for flammable, explosive, and harsh environments such as petrochemical plants and oil storage tanks.
8.Modular maintenance and long-term operation:The overall structure is compact with a scientific connection between the actuator and valve body. Key wearing parts like diaphragms and seals adopt a modular design, allowing replacement and maintenance without complex tools, significantly shortening system downtime.

V230Y21/22 Self-operated Micro-pressure Regulating Valvestructure principle

Structural Drawing of V230Y21/22 Self-operated Micro-pressure Regulating Valve

List of Component Names and Materials

Name	Material
Valve body	Cast Steel,Stainless Steel,Duplex Stainless Steel
Valve seat	1Cr18Ni9Ti, Cr18Ni12Mo2Ti
Valve core	1Cr18Ni9Ti, Cr18Ni12Mo2Ti
Valve stem	1Cr18Ni9Ti, Cr18Ni12Mo2Ti
Diaphragm cover	A3, 1Cr18Ni9Ti
Diaphragm	Nitrile rubber, oil-resistant rubber, fluororubber

V230Y21/22 Self-operated Micro-pressure Regulating Valvetechnology parameter

Performance Specification Sheet

Performance Specification Sheet
Nominal Pressure	1.0	1.6	MPa
Strength test pressure	1.5	2.4
Sealing test pressure	1.1	1.76
Applicable Temperature	≤80		℃

V230Y21/22 Self-operated Micro-pressure Regulating Valvestandard size

Standard requirements for external dimensions

1. The structural length of the valve shall comply with the standard of GB/T12221

2. Connecting flanges according to GB/T17241.6 standard

Outline Drawing of V230Y21/22 Self-operated Micro-pressure Regulating Valve

Outline dimension table(Unit: mm)

Nominal Diameter (DN)	20	25	32	40	50	65	80	100
A	395
H	680	690	710	720	735	797	837	1050
L	185	200	205	222	254	276	298	352
Flange Standard	GB：1.6、2.5、4.0Mpa ANSI：150、 JIS：10K

Articles related to technology research and development

Dynamic balance electric control valve Patent

The utility model provides a dynamically balanced electric regulating valve, which includes a valve body, a valve cover, a valve rod, a valve core installed inside the valve body and connected to the valve rod, and an actuator installed on the valve cover and connected to the top end of the valve rod. The valve body is internally provided with a water inlet chamber, a valve cavity, and a water outlet chamber in order towards the direction of medium flow. The valve core is in the shape of a bucket with its opening facing downwards. The valve core is located inside the valve cavity and is used for connecting or cutting off between the water inlet chamber and the valve cavity. The top of the valve core is provided with a through port for medium circulation. Above the through port, there is a filter cover detachably connected to the valve core. The valve rod is provided with a step, and the outside of the step is covered with an elastic sleeve that fits it. The top of the filter cover is provided with a fixing hole that fits the elastic sleeve. This utility model can filter the medium, is simple to install, time-saving, labor-saving, and can reduce the medium pressure inside the valve body, extending the service life of the valve core.
1. A dynamic balance electric regulating valve, comprising a valve body, a valve cover, a valve rod, a valve core installed inside the valve body and connected to the valve rod, and an actuator installed on the valve cover and connected to the top end of the valve rod. Its characteristic lies in that the valve body is sequentially provided with an inlet chamber, a valve cavity, and an outlet chamber in the direction of medium flow. The valve core is in the shape of a bucket with an opening facing downwards. The valve core is located inside the valve cavity and is used for connecting or cutting off between the inlet chamber and the valve cavity. The top of the valve core is provided with a port for medium circulation. Above the port, there is a filter cover detachably connected to the valve core. The valve rod is provided with a step, and the outside of the step is covered with an elastic sleeve that fits it. The top of the filter cover is provided with a fixing hole that fits the elastic sleeve.
2. A dynamic balance electric regulating valve according to claim 1, characterized in that the bottom of the valve body is provided with a downward-opening groove, which is connected to the valve cavity through a through hole. A bottom cover connected to the valve body is arranged below the groove, and a pressure relief mechanism is arranged inside the groove. The pressure relief mechanism comprises a force-receiving member, a pressure plate connected to the force-receiving member, and a first spring arranged below the pressure plate and abutting against the bottom cover. The force-receiving member comprises a flow diversion block protruding from the through hole and a connecting rod connected to the flow diversion block, and the connecting rod passes through the pressure plate and is locked and fixed by a nut.
3. A dynamic balance electric regulating valve according to claim 2, characterized in that the top end of the pressure plate is pressed against the top wall of the groove, the bottom of the pressure plate is provided with a boss, and the top end of the first spring is sleeved on the boss.
4. A dynamic balance electric control valve according to claim 1, characterized in that the valve rod is arranged through the valve cover, a sealing cover threadedly connected to the valve cover is sleeved on the valve rod, a convex ring abutting against the valve cover is arranged on the outer circumferential wall of the sealing cover, a nut cover threadedly connected to the sealing cover is arranged at the connection between the sealing cover and the valve rod, an installation groove is arranged at the connection between the nut cover and the valve rod, a plurality of O-rings adapted to the valve rod are stacked in the installation groove, and a packing gland threadedly connected to the installation groove is arranged above the O-rings.
5. A dynamic balance electric control valve according to claim 4, characterized in that a second spring is arranged between the packing gland and the O-ring.
6. A dynamic balance electric control valve according to claim 5, characterized in that a sealing ring adapted to the valve rod is arranged inside the nut cover below the installation groove.
7. A dynamic balance electric control valve according to claim 6, characterized in that the bottom of the sealing cover is provided with a thrust ring that is threadedly connected to the sealing cover and abuts against the bottom end of the valve cover.
8. A dynamic balance electric regulating valve according to claim 1, characterized in that the top surface of the elastic sleeve is higher than the top surface of the filter cover.
9. A dynamic balance electric control valve according to claim 8, characterized in that the filter cover is connected to the valve core through threads.

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Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

V230Y21/22 Self-operated Micro-pressure Regulating Valve

More self-operated control valve>>

More control valve>>

More valve>>

V230Y21/22 Self-operated Micro-pressure Regulating Valve