Rotary type valve

1、 Overview/Summary：

HD9P(E/HY)90H（X）Rotary valveIt is a multifunctional new type of valve developed by Hande Co., Ltd. after years of market research. It can be used for high-performance regulation, cutting off, diversion, and direction change of media. It has various application functions such as ball valves, three-way and multi way valves, butterfly valves, plug valves, and regulating valves. It is widely used in coal chemical, metallurgical, petrochemical, power, light industry, pharmaceutical, and military industries. Hande Co., Ltd. obtained multiple national patents in 2015, which is the first of its kind in the global valve industry.

A rotary valve is a type of valve with a cylindrical valve core shape and an overcurrent window on the cylindrical surface. The valve is opened and closed by rotating the valve core to achieve flow control or regulation. Suitable for various working conditions, it has special advantages and strengths. The rotary valve has solved some of the problems encountered by traditional regulating valves, and some of them have exceeded the performance of traditional regulating valves.

Rotor type valve is hande shares after years of market research and development of a multi function valve, for medium and high performance and regulation, cut, split and commutation. With a ball valve, three-way and multi pass, butterfly valve, plug valve, regulating valve and other applications, widely used in coal chemical industry, metallurgy, petrochemical, power, light industry, medicine and military industries, hande shares in 2015 made a number of national patents, the Department of the world's valve industry first.
Rotor type valve is a valve core shape for a cylindrical shell, cylindrical surface has over the flow of the window, through the rotary valve to open and close the valve, play the role of closure or regulation. Applicable to all kinds of conditions, has a special advantage and strength. Rotor type valve has solved some of the problems encountered by the traditional control valve, and the part has been beyond the traditional control valve performance.


2、 Structure and Material:

Serial Number	Name/Name	Material/Material
1	Valve body/Body	WCB, CF8, CF3, etc
2	Seat/Seat	SS304, SS304+PTFE, WC, etc
3	Valve core/Spool	SS304+STL, WC, etc
4	Valve Cover/Bonnet	WCB、CF8、CF3
5	Seat Gland	SS304、SS316
6	Sealing gasket/A seal	PTFE、 spiral wound gasket
7	Compression spring/Spring	SS304、17-7PH、Inconel
8	Executing agency/actuator	Pneumatic piston type, electric, hydraulic

3、 Characteristics/Characteristic：

• It has a large adjustable ratio, which can reach 10000:1.

Have large adjustable ratio, adjustable ratio can reach 10000:1。

• Zero pressure drop in fully open state.

All open Zero pressure drop。

• Due to its extremely high Cv value (more than four times that of traditional Globe valves), smaller diameter valves can be selected for the same rated Cv value.

Very high Cv value (more than four times the traditional Globe valve), so the equivalent of Cv value, can choose a smaller diameter valve。

• The opening and closing torque is small (about one-third of the same diameter ball valve), the valve opens and closes without jumping or crawling, the torque is balanced, and the action is sensitive.

Opening and closing torque is small (same diameter of about 1/3), the valve opening and closing without takeoff, no creep, torque balance, action is sensitive。

• Low pressure loss, saving energy consumption.

The pressure loss is small, energy saving

• The structure is simple and can be repaired online.

Simple structure, can achieve online maintenance

• Low noise and anti cavitation.

Low noise anti cavitation

• Suitable for different media and fluids: gases, vapors, suspensions, crystals, fibers, etc.

Suitable for different media and fluid: gas, steam, suspension, crystallization, fiber, etc。

• Can be installed at any position in 360 degrees.

360. grees can be installed at any position。

• Symmetrical design allows for arbitrary selection of liquid flow direction.

Symmetric design, liquid flow can be arbitrary choice

• Lightweight and compact in size.

Light weight, small size。

• Bidirectional sealing, multiple forms of valve seats can be selected, with good sealing performance and high reliability.

Two way sealing, can choose a variety of forms of valve seat, sealing performance is good, high reliability。

• The filling material has a long service life and is not easily leaked.

Long life, not easy leakage

• Good cutting performance. Suitable for fibrous media and hardness particles such as welding slag.

Good shear performance. Suitable for fibrous media, such as welding slag and other hardness particles。

• Good anti blocking performance.

Anti blocking performance is good。

• Widely applicable. The diameter can be applied from small to several millimeters to several meters, from high vacuum to high pressure.

Wide application. From small to a few millimeters to a few meters, from high vacuum to high pressure can be applied。

4、 Classification/Classification
According to different operating conditions, different control components are selected for rotary cylinder valves, which can be classified as follows:

According to different working conditions, rotary cylinder valve selection of different control components, can be classified as follows:

AFully connected type:Mainly used in situations where cutting is required.In the pipeline system, it can connect or intercept the medium with strong flow capacity, low pressure loss, and achieve zero leakage through bidirectional sealing.

All pass: mainly used for cutting applications. In the pipe system, the medium is connected or cut, the flow capacity is strong, the pressure loss is small, the two-way sealing can achieve zero leakage.

BAdjustable type: mainly used for adjusting requirements (large adjustable ratio).In the pipeline system, it mainly plays a regulating role, and the valve actuator receives control signals. Drive the valve cylinder to rotate, and the rotation angle is linearly related to the control signal, in order to control the process parameters in the pipeline. The flow channel can be customized into linear, proportional, or some special shapes as needed to obtain flow curves with different performance.

Adjustable type: mainly used to adjust the requirements of the occasion (adjustable ratio). In the pipe system, the main function of the valve actuator to receive control signal. Drive valve cylinder for rotary motion, rotation angle and control signal linear relationship, so as to control the process parameters in the pipeline. The flow rate can be customized according to the need to be linear, equal percentage or some special shape to obtain different performance of the flow curve.

C、 Three way or multi way (adjustable) type:LTypeTType.A three-way rotary valve refers to a valve body with three inlet and outlet ports. The three-way rotary valve is divided into two types: L-shaped and T-shaped. The L-shaped valve is mainly used for reversing the direction of the medium, and the flow direction of the medium is changed from one pipeline to another. T-type is mainly used for the diversion and merging of media. Diversion controls the flow of a medium from different pipelines, while merging controls the convergence of two media into one pipeline.

Multi way rotary valve refers to a valve with four or more inlet and outlet ports perpendicular to the rotation axis plane of the actuator, or one outlet port at the lower end of the plane. The valve is mainly used for reversing or merging two or more media into one pipeline.

Three way or multi pass (regulation) type: L type, T type. Three way type of rotary valve is the valve body has three import and export, the three valve is divided into L type and T type two, L type is mainly used for the medium of the direction of the flow from one pipe to another. T type is mainly used for the medium flow and confluence, the diversion is to control the flow of a medium separately from the different pipe, the confluence is the control of the two media convergence in a pipeline.

Multi type rotary cylinder valve refers to the vertical axis of the actuator on the axis of the plane has four or more of the import and export, or in the lower end of the plane also have an outlet, the role of the valve is mainly used for more than two medium or a pipe.

D、 Noise reduction type: can effectively reduce noise.The medium circulating in the pipeline will generate large noise under certain conditions, which will damage the equipment and cause pollution to the environment. Therefore, taking some noise reduction measures in the design of valve internals can reduce noise.

Noise reduction type: can effectively reduce the noise. Medium in the pipe flow, certain conditions will produce large noise, will cause damage to the equipment, environmental pollution. Therefore in the valve design to take some noise reduction measures can reduce the noise

ESmall traffic type:When the flow rate of the medium is very small, the small opening of the valve meets the flow requirements and cannot be adjusted normally. At this time, the throttle shape can be designed as a rectangular window with a minimum width of 1mm, and the flow characteristics are linear. The Cv value can reach a very small value, thereby improving the control accuracy at small flow rates.

Small flow type: when the medium flow is very small, the valve is very small opening to meet the flow requirements, and therefore can not be adjusted, this time can be the throttle orifice shape design for the minimum 1mm wide window, flow characteristics for linear, Cv value can reach a minimum, so as to improve the control accuracy of micro flow.

FAnti cavitation type:Cavitation is a form of material damage that occurs when the pressure and temperature of a liquid reach critical values. Cavitation is divided into two stages: flash evaporation and cavitation. Under certain conditions, some of the liquid in the pipeline vaporizes into a gas state, producing bubbles and forming a gas-liquid two-phase flow, which is the flash evaporation process. The pressure downstream of the valve increases, and the process of bursting bubbles is called cavitation. Cavitation can cause scratches, deep grooves, and dents on the surface of valve internals. Valves generally adopt a tortuous path, multi-stage pressure reduction, porous throttling, and guide the medium to flow towards the central area of the valve body to prevent impact on the inner wall of the valve body, in order to prevent and reduce cavitation damage.

The anti cavitation, cavitation is material in the pressure and temperature of the liquid reaches critical values produced a failure mode, cavitation is divided into two stages, such as flashing and cavitation. The liquid in the pipeline under certain conditions and partially vaporizes into gas state, bubble, formation of gas-liquid two-phase flow which is the process of flash. Downstream of the valve's pressure increases, the cavitation bubble crush process process. Cavitation can make the surface trim have worn, and deep pits. Valve is generally used in a tortuous path, multi-stage pressure, porous throttle and guide the flow of the valve body center to prevent the impact of the inner wall of the valve body to prevent and reduce the damage of cavitation.

GMulti stage voltage reduction and noise reduction type:When the noise level is quite high after the medium flows through the pipeline, it can also be solved by multi-stage pressure reduction and noise reduction.

Multi-stage buck noise reduction type: when the medium flow through the pipe in the pipe is quite high, it can be resolved through the multi-level buck.

HHalf cylinder type:When the medium contains solid particles or fibrous substances, a semi cylindrical structure can be used, which has self-cleaning and shearing functions.

Half tube type: when the medium containing solid particles or fibrous material, can choose a half tube type structure, this structure has the clean and shear function.

KAngle rotary valve:

It is mainly used in working conditions with high pressure difference or low flow resistance, and can also be used as a bottom discharge valve. Especially suitable for pressure and flow regulation of black water and grey water in the coal chemical industry.

The valve core and seat of the angle rotary cylinder valve are made of precision machined materials, with a surface roughness of Rc0.04 and a material hardness of HRA90 or above, which is extremely wear-resistant. The traditional black water regulating valve adopts a Venturi angle straight stroke structure, with a high inlet and low outlet flow direction, strong opening and closing force, and the valve stem moves up and down. Due to the gap between the valve stem and the guide sleeve, oscillation is prone to occur, and the valve core often breaks at the root. After a period of use, the valve stem is prone to scaling, causing the valve core to fail to move. The angle rotary cylinder valve operates with an angular stroke, with a small rotational torque and self-cleaning function during rotation. The contact area between the cylinder valve core and the valve body is large and uniform, solving the vibration and crawling phenomenon of traditional angle seat valves. The mirror contact between the valve core and the valve seat ensures the reliability of the seal, thereby improving the adjustment accuracy.

Mainly used for high pressure or flow resistance of the working conditions, but also can be used as the bottom discharge valve. The pressure and flow is particularly suitable for the coal chemical industry in the black and gray water regulation.

The valve core and valve seat of the valve core and valve seat material after finishing, the surface roughness reached Rc0.04, the material hardness of the HRA90 more than a very abrasive. Traditional black water regulating valve adopts venturi angle type straight stroke structure, the flow of high into a low, opening and closing force, stem moves up and down, there is a gap between the stem and the guide sleeve, prone to oscillate like, often the spool from the roots broken, a period of time, the stem is easy to scale, resulting in the spool can not action. The angle rotary cylinder valve for angular stroke, rotary torque is small, in the process of rotation with the self clean function, cylinder type valve body with large contact area between large and uniform, to solve the traditional angle seat valve vibration and crawling phenomenon, the valve core and valve seat contact between the valve and the valve to ensure the reliability of the sealing, thereby improving the accuracy of adjustment.

5、 Comparison of flow coefficient curves/ Flow coefficient curve comparison


6、 Main technical performance/ Main technical performance：

Serial Number	Category/Category	Parameters and performance	Serial Number	Category/Category	Parameters and performance
1	Nominal diameter/body size	1”-20”/DN25-DN500	8	Drive mode/actuator	Pneumatic, electric, hydraulic
2	Pressure rating/Press Rating	Class150-class900/ PN20-PN160	9	Flow characteristics	Linear, equal percentage
3	Applicable media/state	Water, oil, gas, coal slurry, etc	10	Executing Agency	Cylinder, electric head, hydraulic
4	Applicable temperature/Temp. ℃	-100-650℃	11	Attachment/Annex	Pressure reducing valve, filter, locator, etc
5	Leakage Levels/Seat Leakage Classes	ANSI CLASS ⅤⅥ	12	Valve body/Body	WCB, CF8, CF8M, etc
6	Connection method/Conn.Type	Flanges, welding	13	Valve internals/Spool	SS304, SS316, SS316L, etc
7	Structure form	Straight or angled	14	Adjustable ratio	10000：1

7、 Appearance and connection dimensions/Shape connection size：




Note: Please refer to the relevant sample drawings for the dimensions of angle rotary cylinder valves, three-way and multi way rotary cylinder valves.

8、 RatedCv：

Nominal Diameter	DN25	DN32	DN40	DN50	DN65	DN80	DN100	DN125	DN150	DN200	DN250	DN300
Rated Cv (quick open)	100	146	237	384	531	714	1315	2030	3122	4694	6660	8760
Rated Cv (large adjustable ratio)	100	146	237	384	531	714	1315	2030	3122	4694	6660	8760
Rated Cv (equal percentage)	84	122	198	320	443	595	1096	1692	2602	3912	5550	7300
Rated Cv (linear)	86	125	205	330	453	605	1105	1710	2710	4020	5750	7400

*The above Cv values are the rated Cv values for the most basic type of rotary valve. The rated Cv values for multi-stage noise reducing and multi-stage pressure reducing rotary valves are determined based on on-site process parameters after calculation. Rotary valves of the same diameter can also choose a lower rated Cv value than the basic type, and the specific Cv value is determined after calculation.


9、 Hande Model Establishment of Rotor Type Valve

• Ordering Notice: (See Appendix 3: Data Sheet)

1. Model number; Nominal diameter * valve seat diameter; Nominal pressure; Flange connection form;
2. Traffic characteristics; Execution mechanism model; Gas supply pressure;
3. Valve action form (air open or air close)
4. Attachment requirements (locator, pressure reducing valve, handwheel, etc.)
5. Normal traffic and required maximum traffic;
6. Medium name, temperature, specific gravity, pressure (corresponding to maximum or minimum flow rate)
7. Medium viscosity, presence of suspension, concentration, particle size).

ordering information: (see table three: data sheet)
1, type; nominal diameter * valve seat diameter; nominal pressure; flange connection form;
2, flow characteristics; the implementation of the model; gas pressure;
3, valve action form (gas or gas)
4, annex requirements (locator, valve, hand wheel, etc.)
5, normal flow and maximum flow rate;
6, the media name, temperature, specific gravity, pressure (corresponding to the maximum or minimum flow)
7, whether the suspension, medium viscosity, concentration, particle size).

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