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E-mail
hualite@hualite-valve.com
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Phone
13505771616
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Address
No. 156-158, Zhenjiang North Street, Oubei, Yongjia County, Zhejiang Province
Zhejiang Hualite Valve Co., Ltd
hualite@hualite-valve.com
13505771616
No. 156-158, Zhenjiang North Street, Oubei, Yongjia County, Zhejiang Province

Structure and characteristics of plunger valve
A plunger valve is composed of valve body, valve cover, valve stem, plunger, hole holder, sealing ring, handwheel and other components. When the handwheel rotates, the valve stem drives the plunger to reciprocate up and down in the middle of the hole frame to complete the opening and closing function of the valve.
In the valve, an interference fit is used between the plunger and the sealing ring. By adjusting the flange bolts in the cover, the lateral force generated by the compression of the sealing ring is sealed with the hole surface in the valve body and the outer circle of the plunger, thereby ensuring the sealing performance of the valve, preventing internal leakage, and achieving rapid opening and closing of the valve with a small opening torque.
Due to the use of non-toxic new sealing materials with strong resilience and high wear resistance in the sealing ring, it can withstand long-term high temperature and high pressure without losing elasticity, making the sealing performance reliable and durable.
Material
|
cast steel
|
cast iron
|
Non iron steel
|
Non ferrous steel containing molybdenum
|
|
WCB
|
HT200
|
CF8(304)
|
CF8M(316)
|
Sealing ring material
|
Upper sealing ring material
|
Lower sealing ring material
|
|
Tetrafluoroethylene with flexible graphite (PTFE)
|
Tetrafluoroethylene with flexible graphite (PTFE)
|
Main structural dimensions of flange connection
|
1.6MPa U41SM-16Z U41SM-16C U41SM-16P/R |
||||||||||||||||
|
Nominal diameter DN (mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
|
|
Main External |
L |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
650 |
698 |
787 |
|
D |
95 |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
215 |
245 |
280 |
335 |
405 |
460 |
520 |
|
|
D1 |
65 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
180 |
210 |
240 |
295 |
355 |
410 |
470 |
|
|
D2 |
45 |
55 |
65 |
78 |
85 |
100 |
120 |
135 |
155 |
185 |
210 |
265 |
320 |
375 |
435 |
|
|
b |
14 |
14 |
14 |
16 |
16 |
16 |
18 |
20 |
20 |
22 |
24 |
26 |
30 |
30 |
34 |
|
|
Z-φd |
4-φ14 |
4-φ14 |
4-φ14 |
4-φ18 |
4-φ18 |
4-φ18 |
8-φ18 |
8-φ18 |
8-φ18 |
8-φ18 |
8-φ23 |
12-φ23 |
12-φ25 |
12-φ25 |
16-φ25 |
|
|
H |
133 |
140 |
165 |
180 |
200 |
226 |
267 |
300 |
340 |
388 |
410 |
498 |
580 |
985 |
110 |
|
|
weight |
kg |
3.6 |
4.5 |
6 |
8.8 |
12 |
16 |
22 |
30 |
42 |
62 |
88 |
155 |
240 |
330 |
540 |
|
2.5-MPa U41SM-25 U41SM-25P U41SM-25R |
||||||||||||||||
|
Nominal diameter DN (mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
|
|
main |
L |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
650 |
698 |
787 |
|
D |
95 |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
230 |
270 |
300 |
360 |
425 |
485 |
550 |
|
|
D1 |
65 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
190 |
220 |
250 |
310 |
370 |
430 |
490 |
|
|
D2 |
45 |
55 |
65 |
78 |
85 |
100 |
120 |
135 |
160 |
188 |
218 |
278 |
332 |
390 |
448 |
|
|
b |
16 |
16 |
16 |
18 |
18 |
20 |
22 |
22 |
24 |
28 |
30 |
34 |
36 |
40 |
44 |
|
|
Z-φd |
4-φ14 |
4-φ14 |
4-φ14 |
4-φ18 |
4-φ18 |
4-φ18 |
8-φ18 |
8-φ18 |
8-φ23 |
8-φ25 |
8-φ25 |
12-φ25 |
12-φ30 |
16-φ30 |
16-φ34 |
|
|
H |
133 |
140 |
165 |
180 |
200 |
230 |
230 |
300 |
340 |
388 |
410 |
498 |
580 |
1000 |
1130 |
|
|
weight |
kg |
3.6 |
4 5 |
6 |
8.8 |
12 |
16 |
22 |
32 |
42 |
70 |
95 |
180 |
260 |
350 |
570 |
|
4.0-MPa U41SM-40 U41SM-40P U41SM-40R |
||||||||||||||||
|
Nominal diameter DN (mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
|
|
main |
L |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
650 |
698 |
787 |
|
D |
95 |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
230 |
270 |
300 |
375 |
445 |
510 |
570 |
|
|
D1 |
65 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
190 |
220 |
250 |
320 |
385 |
450 |
515 |
|
|
D2 |
45 |
55 |
65 |
78 |
85 |
100 |
120 |
135 |
160 |
188 |
218 |
282 |
345 |
408 |
465 |
|
|
D6 |
40 |
51 |
58 |
66 |
76 |
88 |
110 |
121 |
150 |
176 |
204 |
260 |
313 |
364 |
422 |
|
|
b |
16 |
16 |
16 |
18 |
18 |
20 |
22 |
22 |
24 |
28 |
30 |
32 |
42 |
46 |
52 |
|
|
Z-φd |
4-φ14 |
4-φ14 |
4-φ14 |
4-φ18 |
4-φ18 |
4-φ18 |
8-φ18 |
8-φ18 |
8-φ23 |
8-φ25 |
8-φ25 |
12-φ30 |
12-φ34 |
16-φ34 |
16-φ34 |
|
|
H |
133 |
140 |
165 |
180 |
200 |
230 |
267 |
300 |
340 |
388 |
410 |
498 |
580 |
1000 |
1130 |
|
|
weight |
kg |
3.6 |
4.5 |
6 |
8.8 |
12 |
16 |
22 |
32 |
42 |
70 |
95 |
180 |
260 |
480 |
690 |