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Large-diameter stainless steel gate valve
Product model: Z41W / Y
Nominal pressure: PN1.0~16.0MPa
Nominal diameter: DN50~1600mm
Main material: stainless steel
Suitable medium: water, oil and other acid corrosion
Design specifications: GB / T12234
Length of the structure: GB / T 12221
Flange connection: GB / T 9113 JB / T 79
Test and Inspection: GB / T 13927 JB / T9092

First, the product uses 
Z41 gate valve products with small fluid resistance gate, the sealing surface erosion by erosion is small, does not change the media flow, no spoiler, pressure drop and other characteristics of the applicable pressure, temperature range, is a common cut off Valve, widely used in petroleum, chemical, thermal power plants and other oil products, water vapor pipeline connected or cut off the medium in the pipeline. (Do not use throttle).


 Second, the product features 
1 , the most commonly used wedge gate valve wedge seal formed two, wedge angle varies with the valve parameters, usually 50 ; wedge gate valve gate can be made as a whole, called the rigid gate ; Can also be made to produce micro deformation of the gate, to improve its technology to make up for the sealing surface angle in the process of deviation, this gate is called elastic gate; 2 , reliable sealing, excellent performance; usually Under the use of wedge-type elastic gate structure, the large diameter set rolling bearings, easy opening and closing; wedge gate valve shape is simple ,  short structure length, manufacturing process is good, wide range of applications; 3 , according to the user user selection bevel gear, electric , Pneumatic and other drives. 
 

Third, the main connection size

Convex flange 
RF 
Z40H 
Z40Y 
Z40W 
Z40F 
Z40N 

Z41H 
Z41Y 
Z41W 
Z41F 
Z41N 

16C 
16P 
16R 
16I 		1.0MPa
DN L D D1 D2 b Z-φd H Do
50 180 160 125 100 16 4-φ18 358 240
65 195 180 145 120 18 4-φ18 373 240
80 210 195 160 135 50 4-φ18 435 280
100 230 215 180 155 50 8-φ18 500 300
125 255 245 210 185 55 8-φ18 614 320
150 280 280 240 210 25 8-φ23 674 320
200 330 335 295 265 26 8-φ23 818 400
250 380 390 350 320 26 12-φ23 969 450
300 420 440 400 368 26 12-φ23 1145 500
350 450 500 460 428 26 16-φ23 1280 500
400 480 565 515 482 26 16-φ25 1452 560
450 510 645 565 532 28 20-φ25 1541 600
500 540 670 620 585 28 20-φ25 1676 640
600 600 780 725 685 30 20-φ30 1874 720
700 660 895 840 800 32 24-φ30 2083 800
800 720 1010 950 905 34 24-φ34 2400 950
900 780 1110 1050 1005 36 28-φ34 2950 1000
100 840 1220 1160 1115 38 28-φ34 3245 1000
1200 960 1450 1380 1325 40 32-φ41 3850 1100
1400 1080 1675 1590 1525 42 36-φ48 3980 1200
1600 1000 1915 1820 1750 46 40-φ54 4120 1300


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