The Z41H/Z41Y manual steel wedge flange gate valve has a complete variety, and the packing and gasket can be reasonably selected according to actual working conditions or user requirements, which can be suitable for various pressure, temperature and medium working conditions. The sealing surfaces of the gate and valve seat are made of iron-based alloy or Stellite cobalt based hard alloy, which is wear-resistant, heat-resistant, corrosion-resistant, with good scratch resistance and long service life. Used for cutting or connecting pipeline media in various working conditions such as petroleum, chemical, and thermal power plants. By selecting different materials, suitable media include water, oil, steam, and weak acid-base solutions.
Application scope:
Used for cutting or connecting pipeline media in various working conditions such as petroleum, chemical, and thermal power plants. By selecting different materials, suitable media include water, oil, steam, and weak acid-base solutions.
Product features:
Simple structure, convenient operation, good performance, and long service life.Reasonable design, reliable sealing, smooth channel, and low flow resistance coefficient.The valve stem has undergone quenching and surface nitriding treatment, which has good corrosion resistance, scratch resistance, and wear resistance.Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.Adopting a wedge type elastic gate or a steel wedge type single gate structure, with medium and large diameters equipped with rolling bearings, the switch is flexible and easy to open and close.
Execution standards:
Design and manufacturing: GB12234-89
Structural length: GB12221-89
Flange size: JB/T79-94
Valve inspection and testing: GB13927
Main parts material:
Main component materials of Z41H/Z41Y manual steel wedge flange gate valve |
Parts name |
Material grade |
Valve body |
WCB |
ZGCr5Mo |
CF8 |
CF8M |
CF3 |
CF3 |
ZG1Cr18Ni9Ti |
Valve cover |
WCB |
12CrMoV |
304 |
316 |
CF3 |
CF3 |
ZGCr5Mo |
CF8 |
CF8M |
316L |
Bracket |
WCB |
WCB |
CF8 |
CF8M |
CF3 |
CF3 |
Disc |
WCB |
ZGCr5Mo |
CF8 |
CF8M |
CF3 |
CF3 |
Stem |
2Cr13 |
25Cr2MoV |
1Cr18Ni9Ti |
Seat |
25 |
304 |
304 |
304 |
304 |
304 |
Gaskets, gasket rings, sealing rings |
Wrapped gasket, 304, reinforced flexible graphite |
Filler |
Reinforced flexible graphite |
Stem nut |
ZCuA110Fe3 |
Performance parameter:
Performance parameters of Z41H/Z41Y manual steel wedge flange gate valve |
|
Test pressure（MPa） |
Applicable temperature（℃） |
Applicable medium |
Nominal pressure |
PN（MPa） |
Strength test |
Sealing test |
WCB |
Cr5Mo |
1Cr18Ni9Ti |
1.6 |
2.4 |
1.8 |
|
|
|
Water,oil,steam,acidic media |
2.5 |
3.8 |
2.8 |
≤425 |
≤540 |
≤600 |
4 |
6 |
4.4 |
|
|
|
6.4 |
9.6 |
7.1 |
|
|
|
External structural connection size:
External connection dimensions of Z41H/Z41Y manual steel wedge flange gate valve |
Nominal pressure PN（MPa） |
Nominal diameter DN（mm） |
Main external size and connection size（mm） |
Weight |
L |
D |
D1 |
D2 |
b-f |
z-фd |
H |
Do |
（kg） |
1.6 |
15 |
130 |
95 |
65 |
45 |
2/16 |
4/14 |
170 |
120 |
5 |
20 |
150 |
105 |
75 |
55 |
2/16 |
4/14 |
190 |
140 |
6.5 |
25 |
160 |
115 |
85 |
65 |
2/16 |
4/14 |
205 |
160 |
9 |
32 |
180 |
135 |
100 |
78 |
2/18 |
4/18 |
270 |
180 |
12 |
40 |
200 |
145 |
110 |
85 |
3/18 |
4/18 |
310 |
200 |
26.5 |
50 |
250 |
160 |
125 |
100 |
3/18 |
4/18 |
358 |
240 |
29 |
65 |
265 |
180 |
145 |
120 |
3/18 |
4/18 |
373 |
240 |
33 |
80 |
280 |
195 |
160 |
135 |
3/20 |
8/18 |
435 |
280 |
45 |
100 |
300 |
215 |
180 |
155 |
3/20 |
8/18 |
500 |
300 |
63 |
125 |
325 |
245 |
210 |
185 |
3/22 |
8/18 |
614 |
320 |
108 |
150 |
350 |
280 |
240 |
210 |
3/24 |
8/23 |
674 |
360 |
134 |
200 |
400 |
335 |
295 |
265 |
3/26 |
12/23 |
818 |
400 |
192 |
250 |
450 |
405 |
355 |
320 |
3/30 |
12/25 |
969 |
450 |
273 |
300 |
500 |
460 |
410 |
375 |
4/30 |
12/25 |
1145 |
560 |
379 |
350 |
550 |
520 |
470 |
435 |
|
16-25 |
1280 |
640 |
590 |
400 |
600 |
580 |
525 |
485 |
|
16-30 |
1452 |
640 |
850 |
450 |
650 |
64 |
585 |
545 |
|
20-30 |
1541 |
720 |
907 |
500 |
700 |
705 |
650 |
608 |
|
20-34 |
1676 |
720 |
958 |
600 |
800 |
840 |
770 |
718 |
|
20-41 |
1874 |
800 |
1112 |
|
