Ïðèìåíåíèå
Äëÿ çàùèòû òðóáîïðîâîäîâ îò îáðàòíîãî ïîòîêà ðàáî÷åé ñðåäû. Ïðåäíàçíà÷åí äëÿ òðóáîïðîâîäîâ, òðàíñïîðòèðóþùèõ òåõíè÷åñêóþ ãîðÿ÷óþ, õîëîäíóþ âîäó, ïàð, íåéòðàëüíûå ñðåäû.
Óñòàíîâêà
Îáðàòíûé êëàïàí ïîäúåìíûé ñ ïðóæèíîé (ñòàíäàðòíîå èñïîëíåíèå) ìîæåò óñòàíàâëèâàòüñÿ êàê â ãîðèçîíòàëüíîì, òàê è â âåðòèêàëüíîì ïîëîæåíèè. Îáðàòíûé êëàïàí ïîäúåìíûé áåç ïðóæèíû ìîæåò óñòàíàâëèâàòüñÿ òîëüêî â ãîðèçîíòàëüíîì ïîëîæåíèè êðûøêîé ââåðõ.
Ìàðêèðîâêà êëàïàíà

Тåõíè÷åñêèå õàðàêòåðèñòèêè
Çàâîäñêàÿ ìîäèôèêàöèÿ
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31-òàðåëêà ñ ïðóæèíîé - ñòàíäàðò 38-òàðåëêà ñ ïðóæèíîé, êîðïóñ ïîêðûò PTFE
41- òàðåëêà áåç ïðóæèíû
32- âíóòðåííèå äåòàëè - áðîíçà
|
Óñëîâíûé äèàìåòð, ìì
|
15 – 300
|
Óñëîâíîå äàâëåíèå, ÌÏà
|
Ñ – 1,6 (DN15–300 ìì)
D – 2,5 (DN15–200 ìì)
E – 4,0 (DN15–200 ìì)
|
Òåìïåðàòóðà, ìàêñèìàëüíàÿ
(â çàâèñèìîñòè îò ìàòåðèàëîâ êîðïóñà)
|
À – 300°Ñ - ÷óãóí
Ñ – 350°Ñ - ñôåð. ÷óãóí F – 400°Ñ - óãëåð. ñòàëü Å – 225°Ñ - áðîíçà
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Ñðåäà
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âîäà, âîäÿíîé ïàð è äðóãèå æèäêîñòè
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Ïðèñîåäèíåíèå
|
Ôëàíöåâîå
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Ìèíèìàëüíîå äàâëåíèå îòêðûòèÿ, ÌÏà
|
0,005-0,01
|
|

Ñïåöèôèêàöèÿ (âåðñèÿ êëàïàíà 287-À)
Çàâîäñêàÿ ìîäèôèêàöèÿ
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31-òàðåëêà ñ ïðóæèíîé - ñòàíäàðò 38-òàðåëêà ñ ïðóæèíîé, êîðïóñ ïîêðûò PTFE
41- òàðåëêà áåç ïðóæèíû
32- âíóòðåííèå äåòàëè - áðîíçà
|
Óñëîâíûé äèàìåòð, ìì
|
15 – 300
|
Óñëîâíîå äàâëåíèå, ÌÏà
|
Ñ – 1,6 (DN15–300 ìì)
D – 2,5 (DN15–200 ìì)
E – 4,0 (DN15–200 ìì)
|
Òåìïåðàòóðà, ìàêñèìàëüíàÿ
(â çàâèñèìîñòè îò ìàòåðèàëîâ êîðïóñà)
|
À – 300°Ñ - ÷óãóí
Ñ – 350°Ñ - ñôåð. ÷óãóí F – 400°Ñ - óãëåð. ñòàëü Å – 225°Ñ - áðîíçà
|
Ñðåäà
|
âîäà, âîäÿíîé ïàð è äðóãèå æèäêîñòè
|
Ïðèñîåäèíåíèå
|
Ôëàíöåâîå
|
Ìèíèìàëüíîå äàâëåíèå îòêðûòèÿ, ÌÏà
|
0,005-0,01
|
Çàâèñèìîñòü «Òåìïåðàòóðà – Äàâëåíèå»
ìàòåðèàë/ òåìïåðàòóðà
|
÷óãóí EN-GJL-250
|
côåð. ÷óãóí EN-GJS-400
|
ñòàëü GP240GH+N
|
Ðó1,6
|
Ðó2,5
|
Ðó4,0
|
-10
|
1,6
|
2,5
|
4,0
|
120
|
1,6
|
2,5
|
3,68
|
180
|
1,34
|
2,33
|
3,44
|
200
|
1,28
|
2,3
|
3,33
|
250
|
1,12
|
2,18
|
3,04
|
300
|
0,96
|
2,0
|
2,67
|
350
|
-
|
1,75
|
2,57
|
400
|
-
|
-
|
2,38
|
|
Ïàðàìåòðû êëàïàíà V287-À-ÕÕ-Ñ-31
DN (ìì)
|
Êîä äëÿ çàêàçà#
|
Ðàçìåðû, (ìì)
|
Ìàññà, (êã)
|
Dz
|
Dp
|
Do
|
d
|
n*
|
f
|
h
|
H
|
L
|
15
|
Z11.26M2.35
|
95
|
45
|
65
|
14
|
4
|
2
|
5
|
56
|
130
|
2,1
|
20
|
Z11.26M2.45
|
105
|
58
|
75
|
14
|
4
|
2
|
5
|
56
|
130
|
2,7
|
25
|
Z11.26M2.55
|
115
|
68
|
85
|
14
|
4
|
2
|
8
|
67
|
160
|
3,8
|
32
|
Z11.26M2.65
|
140
|
78
|
100
|
19
|
4
|
2
|
8
|
76
|
180
|
5,5
|
40
|
Z11.26M2.75
|
150
|
88
|
110
|
19
|
4
|
3
|
11
|
89
|
200
|
7,4
|
50
|
Z11.26M2.85
|
165
|
102
|
125
|
19
|
4
|
3
|
14
|
96
|
230
|
9,5
|
65
|
Z11.26M2.95
|
185
|
122
|
145
|
19
|
4
|
3
|
17
|
104
|
290
|
15,0
|
80
|
Z11.26M2.105
|
200
|
138
|
160
|
19
|
8
|
3
|
21
|
124
|
310
|
20,0
|
100
|
Z11.26M2.115
|
220
|
158
|
180
|
19
|
8
|
3
|
25
|
161
|
350
|
29,0
|
125
|
Z11.26M2.125
|
250
|
188
|
210
|
19
|
8
|
3
|
32
|
174
|
400
|
41,0
|
150
|
Z11.26M2.135
|
285
|
212
|
240
|
23
|
8
|
3
|
38
|
197
|
480
|
65,0
|
200
|
Z11.26M2.145
|
340
|
268
|
295
|
23
|
8
|
3
|
50
|
248
|
600
|
111
|
250
|
Z11.26M2.155
|
405
|
320
|
355
|
23
|
12
|
3
|
65
|
333
|
730
|
196
|
300
|
Z11.26M2.165
|
460
|
378
|
378
|
23
|
12
|
3
|
95
|
375
|
800
|
302
|
|