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Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional

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Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional

China Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional supplier
Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional supplier Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional supplier Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional supplier

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Product Details:

Place of Origin: China
Brand Name: LINUO
Model Number: Three-dimensional eccentric butterfly valve

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: Negotiable
Packaging Details: Wooden packing
Delivery Time: 5-30 days upon order quantity
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 50 set / 30 days
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Detailed Product Description
Material: Stainless Steel DN: 50、65、80、100、125、150、200、300、350、400、450、500、600、700、800、900、1000、1200.
PN: 1.0、1.6、2.5、4.0、6.4(MPa) ANSI、150LB、300LB Temperature Range: Soft Seal -40℃~160℃, Hard Seal -40℃~425℃

Three-dimensional eccentric butterfly valve

  The butterfly valve is a kind of high-level control valve with right angle rotation. It can be used as a regulating valve or as an on-off valve. The long-life energy-saving butterfly valve developed by our company adopts the three-dimensional eccentric principle design, which makes the space movement track of the sealing surface idealized, and solves the shortcoming that the traditional eccentric butterfly valve is still in sliding contact friction when the opening and closing is 0° 10°. The sealing plate is separated at the instant of opening, and the contact is sealed when closed, thereby prolonging the service life and is suitable for controlling gas, solid particles and liquid. This product is widely used in the automatic control system of chemical, petroleum, chemical fiber, electric power, metallurgy, pharmaceutical, environmental protection, papermaking and other industrial sectors. 

 

Design Feature

Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional

Self-lubricating bearing

  The valve stem is fixed by double bearings. The bearing is made of a special process of sintering copper on a stainless steel surface and then rolling PTFE on the copper surface. It has excellent wear resistance and self-lubricating function, which avoids the valve stem and bearing seizure phenomenon in the long-term use of the valve.

Valve body

  The valve body adopts a thin design, which is beautiful and light in appearance, small in size, light in weight and low in material consumption. It is more economical than other caliber valves.

Valve stem

  The outer circle is made of coreless grinding, and the friction coefficient between the filler and the packing is small. The friction loss is minimized, and the valve opening and closing torque is greatly reduced.

Valve plate

  The three-dimensional eccentric design provides a mechanical seal that allows the seal to be independent of its differential pressure. A good seal is guaranteed even at very low differential pressures.

Seal ring

  Adopt multi-layer sealing structure design. Metal sealing seat and PTFE seat can also be selected according to working conditions.

Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional

Parts List

No. Item Quantity(piece) Material
1 Valve body 1 WCB,CF8,CF8M
2 Valve stem 1 17-4PH, SS304, SS316, SS410
3 Valve plate 1 WCB,CF8,CF8M
4 Seal ring 1 Stainless steel + graphite,PTFE
5 Platen ring 1 Q235,SS304,SS316
6 Hexagon socket bolt On demand SS304,SS316
7 Open loop 1 SS304,SS316
8 Pin 2 SS304,SS316
9 Hex Bolts 4 SS304
10 Rear gland 1 WCB,CF8,CF8M
11 Washer 1 Metal winding mat
12 Self-lubricating bearing 1 Composite material
13 Self-lubricating bearing 1 Composite material
14 Packing On demand PTFE,Flexible graphite
15 Packing gland 1 WCB,CF8,CF8M
16 Stud 2 SS304
17 Flat pad 2 SS304
18 Spring pad 2 SS304
19 Nut 2 SS304

 

Technical Parameters

Nominal diameter (DN): 50,65,80,100,125,150,200,300,350,400,450,500,600,700,800,900,1000,1200.

Nominal pressure (PN): 1.0,1.6,2.5,4.0,6.4(MPa) ANSI,150LB,300LB

Connection form: clip type, flange type, lug type.

Temperature range: soft seal -40℃~160℃, hard seal -40℃~425℃

Leakage: metal seal switch valve according to GB/T 13927 class D regulations; the control valve according to GB/T 4213 V class regulations; soft seal zero leakage.

Pressure test: the shell test pressure is 1.5 times the nominal pressure. The seal test is 1.1 times the nominal pressure. The test medium is water.

Flow characteristics: Approximate equal percentage characteristics.

 

The characteristic curve is as follows

Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional

 

Butterfly valve rated Cv value table

DN Rated Cv
50 95
65 175
80 270
100 470
125 850
150 1400
200 2300
250 3560
300 5800
350 7800
400 10000
450 13500
500 18000
600 25000
700 38500
800 48000
900 52500
1000 61700
1200 81000

 

Actuator configuration

DN Valve reference torque(N.m ) Z series actuator Fine actuator Electric Air pressure
(mm) 1.6 ( MPa) ZSQ double acting actuator ZDQ single acting actuator DA SR (Mpa )
50 50 ZSQ41-φ80-φ14 ZDQ41-φ100-φ14 85 100 10 0.5 ~0.7
65 60 ZSQ41-φ80-φ14 ZDQ41-φ125-φ14 85 115 10
80 90 ZSQ41-φ100-φ16 ZDQ50-φ125-φ16 100 125 20
100 100 ZSQ41-φ125-φ20 ZDQ50-φ125-φ20 100 140 20
125 160 ZSQ50-φ125-φ20 ZDQ50-φ160-φ20 125 140 40
150 240 ZSQ50-φ160-φ25 ZDQ60-φ200-φ25 140 190 40
200 420 ZSQ60-φ160-φ30 ZDQ80-φ200-φ30 160 210 60
250 720 ZSQ60-φ200-φ35 ZDQ80-φ250-φ35 200 240 100
300 1100 ZSQ80-φ250-φ40 ZDQ100-φ300-φ40 240 300 150
350 1500 ZSQ80-φ250-φ45 ZDQ130-φ350-φ45 270 350 200
400 2500 ZSQ100-φ300-φ50 ZDQ130-φ400-φ50    
450 4200 ZSQ130-φ350-φ50 ZDQ160-φ400-φ50    
500 5000 ZSQ130-φ400-φ55 ZDQ160-φ450-φ55    
600 8700 ZSQ160-φ450-φ70    
700 10000 ZSQ160-φ450-φ80    
800 14750 ZSQ160-φ500-φ85    
900 20000 ZSQ200-φ500-φ95    

Note: ZSQ and ZDQ actuators are developed by our company. For details, please refer to the Z series actuators. The above valve actuators are configured with a nominal valve pressure of 1.6MPa at room temperature. It is recommended to use the actuator air source pressure of 0.5MPa. If the valve nominal pressure is greater than 1.6MPa, the actuator will be further recommended.

 

Three-dimensional eccentric principle

1. Deviate from the center of the pipeline.

2. Deviate from the center of the sealing surface.

3. The eccentricity of the tapered cone on the sealing surface.

  When the valve is opened, the disc is eccentric (1, eccentric, 2 quickly disengages from the valve seat), which reduces the wear at the seal, the friction torque is small, and the opening is flexible.

  Eccentric cone. 3. The tangential line of the rotation surface of the sealing surface of the valve plate forms an angle with the sealing surface of the valve seat, and the sealing surface of the valve plate is gradually separated from the sealing surface of the valve seat and gradually pressed to reduce mechanical wear and abrasion. Sealing performance and service life are greatly improved.

Electric / Manual Instrumentation Control Valves , Triple Eccentric Butterfly Valve Dimensional

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