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ZMAX pneumatic large diameter three way shunt control valve

ZMAX pneumatic large diameter three way shunt control valve

Introduction: ZMAX pneumatic large-diameter three-way shunt control valve has the advantages of compact structure, light inner diameter, sensitive action, small pressure drop loss, high allowable pressure, large valve volume, accurate flow characteristics and convenient maintenance. It can be used in various working conditions, especially in the temperature control system of heat exchanger in petroleum industry and automatic control in other industries.

  • Item NO.:

    XUVAL77-38
  • Lead Time:

    45Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • Color:

    Silvery
  • MOQ:

    10
Products Details

ZMAX pneumatic large diameter three way shunt control valve

The valve body is a four-way structure, i.e. one in two out (split flow type), two in one out (combined flow type), so as to achieve the effect of fluid mixing heating or cooling, or the fluid is divided into different parts, so as to meet the requirements of different working conditions. The valve body has the advantages of compact structure, light inner shape, sensitive action, small pressure drop loss, high allowable pressure, large valve volume, accurate flow characteristics and convenient maintenance. It can be used in various working conditions, especially suitable for temperature control system of heat exchanger in petroleum industry and automatic control in other industries.
There are many types of the valve, such as common type, high temperature type and so on. The nominal pressure rating of products are PN1.6, 4.0 and 6.4; The nominal diameter range of valve body is DN25 ~ 400; The leakage levels are II and IV; The flow characteristics are straight line and equal percentage. A variety of specifications are available.


Common materials for main parts of pneumatic pressure large diameter control valve

Name
Texture of material
Body ZG230-450、ZG0Cr18Ni9
Valve core and seat
0Cr18Ni9、0Cr18Ni9+PTFE、0Cr18Ni9 + Steller
Stem 0Cr18Ni9、2Cr13
Putter
0Cr18Ni9、2Cr13
Spring
60Si2Mn
Bellow 0Cr18Ni9
Corrugated diaphragm
Clip reinforced nylon fabric nitrile rubber
Membranous cap
A3、0Cr18Ni9
Shim
0Cr18Ni9、graphite spiral wound gasket (V6590)、F4
Filler
PTFE, Flexible graphite


Main technical parameters of pneumatic pressure large diameter control valve

Nominal diameter
25 32 40 50 65 80 100 125 150 200 250 300 350 400
Valve seat diameter (mm)
25 32 40 50 65 80 100 125 150 200 250 300 350 400
Rated KV
8.5 13 21 34 53 85 135 210 340 535 800 1280 1960 2560
Nominal pressure (MPa)
1.6、2.5、4.0、6.4
Stroke (mm)
16 25 40 60 100 130

Film effective area AE

(cm2)


280
350 560 900 1400 Piston type
Signal range KPa
20-100、40-200、80-240
Gas source pressure Mpa
0.1~0.4 0.4~0.7
Inherent flow characteristics
Linear, Equal percentage, Quick open
Inherent adjustable ratio
30:1
Leakage level
III、IV
Flange size
According to JB/79. (2)_ 94、HG20592_ 97, GB, ANSI, JIB, DIN and other standards
Body material
WCB, 304, 316, WC6, Titanium, Nickel, Hastelloy, Monel, etc
Material of valve core
304, 316, 420, Titanium, Nickel, Hastelloy, Monel, etc
Operating temperature (℃)
-40~+230 ℃ (normal temperature),+230~+ 450℃ (medium temperature), + 450~+560℃ (high temperature), - 40~ -196 ℃ (low temperature)
Series type
Normal temperature type, medium temperature type and low temperature type. Bellows seal type, jacket insulation type, regulating cut-off type


Main performance indexes of pneumatic pressure large diameter control valve:

Serial number
Project

performance index
1 Basic error (%)

Without positioner
With positioner
2 Return difference < (%) < td = >

+-5 +-1
3 Four areas < (%) < td = >

3 1
4 Always point deviation < (%) < td = >
Starting point (%)
3 0.4
End point (%)
+-2.5 +-1
5 Rated Travel Deviation < (%) < td = >
+-2.5
6 Allowable leakage (1/h)
10-3 * valve rated capacity
7 The deviation of rated flow coefficient is less than (%) < td = >
+-10
8 Inherent flow characteristics
It meets the slope deviation requirements specified in IEC534-1 and GB/T4213-92


Dimensions and weight:

Diameter DN (mm)
25 32 40 50 65 80 100 125 150 200 250 300
L PN1.6MPa 185 200 220 250 275 300 350 410 450 550 670 700
PN4.0MPa 190 210 230 255 285 310 355 425 460 560 740 803
PN6.4MPa 200 200 240 265 295 320 370 440 475 570 752 819
H1 135 152 165 180 200 220 222 265 322 362 508 563
A 280 360 470 580
H normal temperature
702 718 795 830 1067 1080 1094 1293 1321 1400 2065 2151
H medium temperature
832 818 925 960 1214 1243 1257 1492 1520 1597 2340 2432
Weight (PN64)
40 45 60 65 100 125 150 250 290 450 - -


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. or15-30 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 45days.




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