
Eccentric rotary valve is also called CAM deflection valve.
Item NO.:
XU145Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
BlueMOQ:
50Eccentric rotary valve is also called CAM deflection valve.Eccentric rotary valve is actually a kind of arched truncated ball valve.Due to the existence of CAM eccentricity in the valve, the pneumatic device in the process of driving the valve closing parts from opening to closing, acting on the sealing force on the valve seat gradually increased, so that the spherical surface of the valve closing parts and the sealing surface of the valve seat from completely detached to contact,and gradually increase the specific pressure of the seal until it is completely sealed, and vice versa.This greatly improves the sealing state and sealing effect of the ordinary ball valve, and creates favorable conditions for the use of hard sealing materials (such as various metals and cemented carbide, etc.) on the ball valve, and opens up a path for the use of the ball valve in high temperature and high pressure to wear serious occasions.In addition, the valve because of the use of the bow - shaped ball and clip type connection, eliminating a pair of flanges, so light weight.In addition, the valve flow capacity is larger than the single seat and double seat type regulating valve, respectively, 50% and more than 20%.The valve has good regulating performance, and the flow characteristics are nearly linear (between equal percentage and linear).Therefore, eccentric rotary valve has been used as a large number of regulating valve use, but also as erosion resistance and abrasion resistance applied to solid materials and high temperature, high pressure occasions.
Specifications and technical parameters
Nominal diameter
25
40
50
65
80
100
125
150
200
250
300
Kv
12
30
58
75
120
190
300
480
930
1200
1900
Nominal pressure
PN 6.4 MPa
Flow characteristics
Straight line(output can also be chhanged from positioner to correction equal percentage)
Temperature℃
Normal temperature type:-20~180; Medium temperature type:-40~450
Allowable differential pressure
6.4
6.4
5.2
6.4
5.4
3.25
2.5
1.5
1.2
1.0
0.8
Leakage level
Soft seal:grade VI. Hard seal grade IV. (GB/T4213-92)
Vlave core angle
50°
Air pressure
0.40~0.6 MPa
Material of main parts
Part name
Material
Body
ZG230-450; ZG1Cr18Ni9Ti
Shaft
2Cr13; 1Cr18Ni9Ti; 17-4PH
Spool
ZG230-450; ZG1Cr18Ni9Ti
Seat
Reinforced PTFE; 1Cr18Ni9Ti Surfacing stellite
Bracket
ZG230-450
Packing
PTFE; Flexible graphite
Main dimensions |
|||||||
DN | A | L | H1 | D | D1 | N-Ø | H |
25 |
255 |
100 | 70 | 140 | 100 | 4-18 | 250 |
32 | 115 | 80 | 155 | 110 | 4-23 | 250 | |
40 | 115 | 85 | 170 | 125 | 4-23 | 290 | |
50 | 125 | 90 | 180 | 135 | 4-23 | 290 | |
65 |
377 |
143 | 105 | 205 | 160 | 8-23 | 350 |
80 | 165 | 110 | 215 | 170 | 8-23 | 350 | |
100 | 195 | 130 | 250 | 200 | 8-24 | 420 | |
125 |
403 |
210 | 150 | 295 | 240 | 8-30 | 460 |
150 | 230 | 150 | 345 | 280 | 8-32 | 480 | |
200 | 245 | 160 | 405 | 345 | 12-32 | 510 | |
250 | 300 | 240 | 470 | 400 | 12-38 | 620 | |
300 | 616 | 340 | 270 | 530 | 460 | 16-38 | 700 |
Note:Flange standard:JB/T79-94,PN6.4MPa,Connection mode: Wafer(It can be specially manufactured according to user's requirements). |
Packing & Delivery :
Packing Details : all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details : Generally it is 5-10 days if the goods are in stock. or 15-30 days if the goods are OEM or not enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45 days.
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