WEYO AUTO TECH
flnn@bravowow.cn
86-13122669823-9-18
Product Details
Place of Origin: China
Brand Name: WEYO
Model Number: ZSJW
Payment & Shipping Terms
Minimum Order Quantity: Negotiable
Price: Based on oroiect reauirements
Packaging Details: Customized packaging to protect products
Delivery Time: 7 - 15 days for small orders, 15 - 30 days for large orders
Payment Terms: L/C, T/T
Supply Ability: 5000 units per month for small parts. 1000 units per month for large parts
ZSJW Series Hard-Seal Regulating and Shut-Off Butterfly Valves
The ZSJW type pneumatic high-performance seal butterfly valve is a novel butterfly valve designed on the basis of absorbing the advantages of several different structural butterfly valves. The valve plate and sealing structure of this butterfly valve adopt a unique three-dimensional eccentric design. The sealing surface of the valve plate only comes into contact with the sealing surface of the valve seat at the moment of closing, and there is almost no friction between the sealing pairs during opening and closing. This not only reduces the opening and closing torque of the butterfly valve, but also prolongs the service life of the valve and makes the sealing more reliable. The valve seat is a hard valve seat made of metal materials.
| Valve assembly | |
| Valve Body | |
| Type |
Flat casting type |
| Nominal Diameter (DN) | 80,100,125,150,200,250,300,350,400,450,500,600,700,800,900, 1000,1200mm |
| Nominal Pressure (PN) | PN1.0,1.6,2.5MPa；ANSI150 |
| Connection Type |
Wafer type without flange |
| Pipe Flange Standard | According to JB/T82.1, PN1.0, 1.6, 2.5MPa, convex face；HG20593～20595；ANSIB16.5 |
| Specification of Fasteners for Flange Connection |
Determined by specific specifications |
| Valve Body Material | ZG230-450,WCB,ZG1Cr18Ni9,ZG1Cr18Ni12Mo2Ti,CF8,CF8M,CF3,CF3M |
| Applicable Temperature | -40～+425℃ |
| Packing |
(Polytetrafluoroethylene (PTFE)), PTFE-impregnated asbestos, flexible graphite |
| Valve Trim | |
| Valve Plate Type |
Partial spherical type (sealing ring contact type) |
| Flow Characteristic |
Approximately equal percentage |
| Valve Plate Material | ZG230-450,WCB,ZG1Cr18Ni9,ZG1Cr18Ni12Mo2Ti ZG1Cr18Ni9+ Hard chrome plated ,ZG1Cr18Ni9+STLZG1Cr18Ni12Mo2Ti+STL,CF8,CF8M,CF3,CF3M |
| Sealing Material |
Multi-layer structure composed of stainless steel combined with high-temperature resistant asbestos sheet or flexible graphite,1Cr18Ni12Mo2Ti |
| Bearing Material | 1Cr18Ni12Mo2Ti |
| Valve Stem Material | 1Cr18Ni9,1Cr18Ni12Mo2Ti,17-4PH,2Cr13 |
| Performance of the control valve as a whole (equipped with a standard cylinder-type actuator) | |
| Action mode of the control valve | Air-closed type or Air-open type |
| rated Cv value, stroke, standard combination of actuator and butterfly valve | |
| flow characteristic | Approximately equal percentage characteristic |
| valve seat leakage | Conforms to GB/T4213-92 Class Ⅵ, conforms to ANSI B16.104-81 Class Ⅵ |
| allowable pressure difference | See the table |
| adjustable ratio R | 50∶1 (rotation angle 90°), 25∶1 (rotation angle 60°) |
| hysteresis | Less than 2.5% of the full stroke (with positioner) |
| basic error | Less than ±2.5% of the full stroke (with positioner) |
| overall dimensions | See the table |
| Standard combination of butterfly valve and actuator, Cv value and stroke | |||||||||||||
| Nominal Diameter DN(mm) |
80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | |
| Actuator | Double-acting | GTX92 GTX127 |
GTX92 GTX127 GTX160 |
GTX 127 GT X |
GTX 160 GTX 210 |
GTX210 GTX255 |
GTX255 | ||||||
| Single-acting | GTX118 GTX143K |
GTX143K GTX160K |
GTX 160K |
GTX210K GTX254K |
GTX254K GTX255K |
GTX 255K |
GTX 300K |
||||||
| Rated Flow Coefficient Cv | 60° | 116 | 230 | 392 | 606 | 1202 | 2047 | 3162 | 4588 | 6282 | 8320 | 10698 | 16528 |
| 90° | 302 | 600 | 1022 | 1579 | 3136 | 5340 | 8250 | 11917 | 16388 | 21705 | 27908 | 43116 | |
| Rated Stroke | 60°,90° | ||||||||||||
| Air Supply Pressure | 0.4～0.6MPa | ||||||||||||
| Allowable pressure difference when fully closed | ||||||||||||||
| DN(mm) | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | ||
| Actuator | Single-acting | GTX118K | 4.5 | 3.8 | 1.6 | 0.8 | ||||||||
| GTX143K | 6 | 5 | 4 | 2 | 1.7 | |||||||||
| GTX160K | 5.6 | 2.8 | 2.5 | |||||||||||
| GTX210K | 1.3 | 0.9 | ||||||||||||
| GTX254K | 1.4 | 0.85 | 0.7 | 0.45 | 0.3 | 0.15 | ||||||||
| GTX255K | 1.1 | 0.8 | 0.55 | 0.41 | ||||||||||
| GTX300K | 0.2 | |||||||||||||
| Double-acting | GTX92 | 4.9 | 2.2 | 1 | 0.6 | |||||||||
| GTX127 | 7 | 7 | 4.4 | 2.8 | 0.5 | |||||||||
| GTX160 | 2.5 | 1.9 | 1.1 | 0.5 | ||||||||||
| GTX210 | 1.8 | 1.8 | 0.7 | 0.65 | 0.4 | 0.2 | ||||||||
| GTX255 | 0.9 | 0.7 | 0.5 | 0.2 | ||||||||||
Overall dimensions
| Ordering Information |
