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Copper core protective open stem gate valve

A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category.

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Classification:

Ductile iron valve series

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Description


A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.

◆ Main technical specifications

Model Z41T-10/
10Q/16Q
Z41H-10/10Q/16Q Z41W-10/10Q/16Q
Nominal pressure (PN) 10/16 10/16 10/16
Sealing test (MPa) 1.1/1.76 1.1/1.76 1.1/1.76
Shell test (MPa) 1.5/2.4 1.5/2.4 1.5/2.4
Applicable temperature (≤ ℃) 200 100 100
Applicable media Water/Steam Water Oil

 

◆ Material of main parts

Parts
Name
Material
Z41T-10/10Q/16Q Z41H-10/10Q/16Q Z41W-10/10Q/16Q
Valve body/bonnet ram cast iron cast iron cast iron
Handwheel ductile iron ductile iron ductile iron
Stem Stainless Steel Stainless Steel Stainless Steel
Stem Nut Copper alloy Copper alloy Copper alloy
Sealing ring Copper alloy Stainless Steel -
Packing flexible graphite

 

◆ Main outline connection dimension

DN L D D₁ D₂ Z-Fd H (off) H (ON) D0
JB GB PN10 PN16 PN10 PN16 PN10 PN16 PN10 PN16
40 140 165 150 150 110 110 84 84 4-19 4-19 248 298 120
50 180 178 165 165 125 125 99 99 4-19 4-19 289 346 180
65 195 190 185 185 145 145 118 118 4-19 4-19 334 408 180
80 210 203 200 200 160 160 132 132 8-19 8-19 377 465 200
100 230 229 220 220 180 180 156 156 8-19 8-19 433 542 200
125 255 254 250 250 210 210 184 184 8-19 8-19 527 662 240
150 280 267 285 285 240 240 211 211 8-23 8-23 596 754 240
200 330 292 340 340 295 295 266 266 8-23 12-23 772 984 320
250 380 330 395 405 350 355 319 319 12-23 12-28 904 1168 320
300 420 356 445 460 400 410 370 370 12-23 12-28 1045 1357 400
350 450 381 505 520 460 470 429 429 16-23 16-28 1177 1542 400
400 480 406 565 580 515 525 480 480 16-28 16-31 1345 1759 500
450 510 432 615 640 565 585 530 548 20-28 20-31 1497 1972 500
500 540 457(700) 670 715 620 650 582 609 20-28 20-34 1666 2225 720
600 600 508(800) 780 840 725 770 682 720 20-31 20-37 2120 2740 720
700 660 610 895 910 840 840 794 794 24-31 24-37 2389 3139 720
800 720 660 1015 1025 950 950 901 901 24-34 24-40 2630 3480 720

Note: 1. The flange size in this table is in accordance with GB/T 17241.6-2008 standard, and the structure length is in accordance with GB/T 12221-2005 standard.
2. This product implements GB/T12232 "General Valve Flange Connection Iron Gate Valve".

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