Factory source Gate Valve Application - WZ Series Metal seated OS&Y gate valve – TWS Valve
Factory source Gate Valve Application - WZ Series Metal seated OS&Y gate valve – TWS Valve Detail:
Description:
WZ Series Metal seated OS&Y gate valve use a ductile iron gate that houses bronze rings to ensure a watertight seal. The OS&Y (Outside Screw and Yoke) gate valve is mainly used in fire protection sprinkler systems. The main difference from a standard NRS (Non Rising Stem) gate valve is that the stem and stem nut are placed outside the valve body. This makes it easy to see if the valve is open or closed, as almost the entire length of the stem is visible when the valve is open, while the stem is no longer visible when the valve is closed. In general this is a requirement in these kinds of systems to ensure a fast visual control of the system status
Material list:
| Parts | Material |
| Body | Cast iron,Ductile iron |
| Disc | Cast iron,Ductile iron |
| Stem | SS416,SS420,SS431 |
| Seat ring | Bronze/Brass |
| Bonnet | Cast iron,Ductile iron |
| Stem nut | Bronze/Brass |
Feature:
Wedge nut:The wedge nut is made of copper alloy with lubricating abilities providing optimum compatibility with the stainless steel stem.
Wedge:The wedge is made from ductile iron with copper alloy face rings which are machnined to a fine surface finish to ensure optimum contact seal with body seat rings.The wedge face rings are accurately machined and firmly secured to the wedge.The guides in the wedge ensure uniform closure regardless of high pressures.The wedge has a large throught bore housing for the stem that ensures no stagnant water or impuritiles can collect.The wedge is fully protected by a coating of fusion bonded epoxy.
Pressure test:
| Nominal pressure | PN10 | PN16 | |
| Test pressure | Shell | 1.5 Mpa | 2.4 Mpa |
| Sealing | 1.1 Mpa | 1.76 Mpa | |
Dimensions:
| Type | DN(mm) | L | D | D1 | b | Z-Φd | H | D0 | Weight (kg) |
| RS | 40 | 165 | 150 | 110 | 18 | 4-Φ19 | 252 | 135 | 11/12 |
| 50 | 178 | 165 | 125 | 20 | 4-Φ19 | 295 | 180 | 17/18 | |
| 65 | 190 | 185 | 145 | 20 | 4-Φ19 | 330 | 180 | 21/22 | |
| 80 | 203 | 200 | 160 | 22 | 8-Φ19 | 382 | 200 | 27/28 | |
| 100 | 229 | 220 | 180 | 24 | 8-Φ19 | 437 | 200 | 35/37 | |
| 125 | 254 | 250 | 210 | 26 | 8-Φ19 | 508 | 240 | 46/49 | |
| 150 | 267 | 285 | 240 | 26 | 8-Φ23 | 580 | 240 | 66/70 | |
| 200 | 292 | 340 | 295 | 26/30 | 8-Φ23/12-Φ23 | 760 | 320 | 103/108 | |
| 250 | 330 | 395/405 | 350/355 | 28/32 | 12-Φ23/12-Φ28 | 875 | 320 | 166/190 | |
| 300 | 356 | 445/460 | 400/410 | 28/32 | 12-Φ23/12-Φ28 | 1040 | 400 | 238/274 | |
| 350 | 381 | 505/520 | 460/470 | 30/36 | 16-Φ23/16-Φ28 | 1195 | 400 | 310/356 | |
| 400 | 406 | 565/580 | 515/525 | 32/38 | 16-Φ28/16-Φ31 | 1367 | 500 | 440/506 | |
| 450 | 432 | 615/640 | 565/585 | 32/40 | 20-Φ28/20-Φ31 | 1460 | 500 | 660/759 | |
| 500 | 457 | 670/715 | 620/650 | 34/42 | 20-Φ28/20-Φ34 | 1710 | 500 | 810/932 | |
| 600 | 508 | 780/840 | 725/770 | 36/48 | 20-Φ31/20-Φ37 | 2129 | 500 | 1100/1256 |
Product detail pictures:
Related Product Guide:
Factory source Gate Valve Application - WZ Series Metal seated OS&Y gate valve – TWS Valve , The product will supply to all over the world, such as: , , ,
By from -
By from -
Related products
-
Manufacturing Companies for Double Check Backfl...
Description: EH Series Dual plate wafer check valve is with two torsion springs added to each of pair valve plates, which close the plates quickly and automatically, that can prevent the medium from flowing back.The check valve can be installed on both horizontal and vertical direction pipelines. Characteristic: -Small in size, light in weight, compact in sturcture, easy in maintenance. -Two torsion springs are added to each of the pair valve plates, which close the plates quickly and automat...
-
OEM manufacturer Alfa Butterfly Valve - MD Ser...
Description: MD Series Lug type butterfly valve allows downstream pipelines and equipments online repair, and it can be installed on pipe ends as exhaust valve. Alignment features of lugged body allows easy installation between pipeline flanges. a real installationi cost saving, can be installed in the pipe end. Characteristic: 1. Small in size&light in weight and easy maintenance. It can be mounted wherever needed. 2. Simple, compact structure, quick 90 degree on-off operation 3. Disc ha...
-
Trending Products Flange Connection Butterfly V...
Description: YD Series Wafer butterfly valve ‘s flange connection is universal standard,and the material of handle is aluminium;It can be used as a device to cut-off or regulate the flow in various medium pipes. Through selecting different materials of disc and seal seat, as well as the pinless connection between disc and stem,the valve can be applied to worse conditions, such as desulphurization vacuum, sea water desalinization. Characteristic: 1. Small in size&light in weight and ...
-
OEM/ODM Supplier Ptfe Powder Coated Butterfly V...
UD Series soft sleeve seated butterfly valve is Wafer pattern with flanges ,the face to face is EN558-1 20 series as wafer type. Characteristics: 1.Correcting holes are made on flange according to standard, easy correcting during the installation. 2.Through-out bolt or one-side bolt used. Easy replacing and maintenance. 3.The soft sleeve seat can isolate the body from media. Product operation instruction 1. Pipe flange standards should conform to butterfly valve standards; suggest using weldi...
-
2021 New Style Hale Butterfly Valve - ED Serie...
Description: ED Series Wafer butterfly valve is soft sleeve type and can separate the body and fluid medium exactly,. Material of Main Parts: Parts Material Body CI,DI,WCB,ALB,CF8,CF8M Disc DI,WCB,ALB,CF8,CF8M,Rubber Lined Disc,Duplex stainless steel,Monel Stem SS416,SS420,SS431,17-4PH Seat NBR,EPDM,Viton,PTFE Taper Pin SS416,SS420,SS431,17-4PH Seat Specification: Material Temperature Use Description NBR -23℃ ~ 82℃ Buna-NBR:(Nitrile Butadiene Rubber ) has good tensile st...
-
factory low price Industrial Butterfly Valve -...
Description: DL Series flanged concentric butterfly valve is with centric disc and bonded liner,and have all same common features of other wafer/lug series,these valves are featured by a higher strength of the body and better resistance to pipe pressures as safey factor. Having all same common features of the univisal series, these valves are featured by a higher strength of the body and better resistance to pipe pressures as safety factor. Characteristic: 1. Short Length pattern design 2. V...
