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对夹升降式止回阀产品概述:
H71单瓣对夹升降式止回阀该产品采用对夹式连接,结构紧凑,阀瓣沿着中心定位作 升降运动,由于阀瓣的关闭行程短,并有弹簧加载,关闭速度快,可显著减少水锤现象。对夹升降式止回阀具有体积小、重量轻、动作灵敏、密封可靠、安装方便等特点,特别适合于安装空间受限制的场合采用,H71单瓣对夹升降式止回阀可适用于水、蒸气、油品、硝酸、醋酸、强氧化性介质等多种介质。
特点
具有结构短、体积小、质量轻;
阀瓣关闭快速,水锤压力小;
流道通畅,流体阻力小;动作灵敏,密封性能好
执行标准
设计制造:JB/T8937
结构长度:JB/T8937
配管法兰:JB/T74
试验与检验:JB/T9092-1999
材料及主要参数
配管法兰 |
公称压力 |
常规产品型号 |
||||||
JB/T74-90 |
PN1.0MPa |
H71H-10C |
H71W10P |
H71W10P8 |
H71W10P3 |
H71W10R |
H71W10R8 |
H71W10R3 |
PN1.6MPa |
H71H-16C |
H71H-16P |
H71H-16P8 |
H71H-16P3 |
H71H-16R |
H71H-16R8 |
H71H-16R3 |
|
PN2.5MPa |
H71H-25 |
H71H-25P |
H71H-25P8 |
H71H-25P3 |
H71H-25R |
H71H-25R8 |
H71H-25R3 |
|
PN4.0MPa |
H71H-40 |
H71H-40P |
H71H-40P8 |
H71H-40P3 |
H71H-40R |
H71H-40R8 |
H71H-40R3 |
|
PN6.3MPa |
H71H-63 |
H71H-63P |
H71H-63P8 |
H71H-63P3 |
H71H-63R |
H71H-63R8 |
H71H-63R3 |
|
PN10.0MPa |
H71H-100 |
H71H-100P |
H71H-100P8 |
H71H-100P3 |
H71H-100R |
H71H-100R8 |
H71H-100R3 |
|
PN16.0MPa |
H71H-160 |
H71H-160P |
H71H-160P8 |
H71H-160P3 |
H71H-160R |
H71H-160R8 |
H71H-160R3 |
|
CB/T9112- 9124、 |
PN2.0MPa |
H71H-20C |
- |
H71H-20P8 |
H71H-20P3 |
- |
H71H-20R8 |
H71H-20R3 |
PN5.0MPa |
H71H-50 |
- |
H71H-50P8 |
H71H-50P3 |
- |
H71H-50R8 |
H71H-50R3 |
|
PN11.0MPa |
H71H-110 |
- |
H71H-110P8 |
H71H-110P3 |
- |
H71H-110R8 |
H71H-110R3 |
|
PN15.0MPa |
H71H-150 |
- |
H71H-150P8 |
H71H-150P3 |
- |
H71H-150R8 |
H71H-150R3 |
|
ANSIB16.5 |
Class150 |
H71H-A1C |
- |
H71H-A1CP8 |
H71H-A1P3 |
- |
H71H-A1R8 |
H71H-A1R3 |
Class300 |
H71H-A3 |
- |
H71H-A3P8 |
H71H-A3P3 |
- |
H71H-A3R8 |
H71H-A3R3 |
|
Class600 |
H71H-A6 |
- |
H71H-A6P8 |
H71H-A6P3 |
- |
H71H-A6R8 |
H71H-A6R3 |
|
Class900 |
H71H-A9 |
- |
H71H-A9P8 |
H71H-A9P3 |
- |
H71H-A9R8 |
H71H-A9R3 |
|
主要零件材料 |
阀体 |
WCB(A105) |
ZG1Cr18Ni9Ti |
CF8(304) |
CF3(304L) |
ZG1Cr18Ni12Mo2Ti |
CF8M(316) |
CF3M(316L) |
阀瓣 |
2Cr13 |
1Cr18Ni9Ti |
0Cr18Ni9 |
00Cr19Ni10 |
1Cr18Ni12TMo2i |
00Cr17Ni12Mo2 |
00Cr17Ni14Mo2 |
|
压圈 |
2Cr13 |
1Cr18Ni9Ti |
0Cr18Ni9 |
00Cr19Ni10 |
1Cr18Ni12TMo2i |
00Cr17Ni12Mo2 |
00Cr17Ni14Mo2 |
|
弹簧 |
0Cr18Ni9 |
0Cr18Ni9 |
0Cr18Ni9 |
00Cr19Ni10 |
1Cr18Ni12TMo2i |
00Cr17Ni12Mo2 |
00Cr17Ni14Mo2 |
|
适用工况 |
适用介质 |
水、蒸汽、 油品等 |
硝酸等腐蚀性介质 |
强氧化性 介质 |
醋酸等腐蚀性介质 |
尿素等腐 蚀性介质 |
||
适用温度(℃) |
-29~425 |
-196~540 |
-196~425 |
-196~540 |
-196~455 |
|||
注:本表为常规对夹式止回阀的型号编制,主要零件材料及适用工况,其他要求及其型号编制参见对夹式止回阀型号编制方法 |
主要尺寸及重量
公称压力 |
公称通径 |
尺寸(mm) |
重量 |
配管法兰(供参考) |
||||||||
L |
D |
D2 |
D3 |
D4 |
D5 |
螺栓孔中心 |
螺栓 |
螺栓 |
螺栓 |
|||
PN1.0MPa |
15 |
16 |
52 |
15 |
24 |
31 |
40 |
0.12 |
65 |
4 |
M12 |
75 |
20 |
19 |
62 |
19 |
30 |
40 |
50 |
0.24 |
75 |
4 |
M12 |
90 |
|
25 |
22 |
70 |
24 |
36 |
47 |
58 |
0.34 |
85 |
4 |
M12 |
90 |
|
32 |
28 |
83 |
31 |
46 |
56 |
68 |
0.53 |
100 |
4 |
M16 |
100 |
|
40 |
31.5 |
93 |
39 |
55 |
66 |
78 |
0.80 |
110 |
4 |
M16 |
105 |
|
50 |
40 |
108 |
48 |
65 |
78 |
90 |
1.2 |
125 |
4 |
M16 |
125 |
|
65 |
46 |
128 |
62 |
80 |
95 |
110 |
1.8 |
145 |
4 |
M16 |
130 |
|
80 |
50 |
142 |
76 |
96 |
110 |
125 |
2.2 |
160 |
8 |
M16 |
135 |
|
100 |
65 |
162 |
95 |
115 |
135 |
150 |
3.4 |
180 |
8 |
M16 |
150 |
|
125 |
90 |
192 |
110 |
125 |
132 |
- |
9.0 |
210 |
8 |
M16 |
180 |
|
150 |
106 |
218 |
127 |
150 |
158 |
- |
14 |
240 |
8 |
M20 |
210 |
|
PN1.0MPa |
200 |
140 |
273 |
165 |
200 |
208 |
- |
24 |
295 |
8 |
M20 |
240 |
PN1.6MPa |
200 |
140 |
273 |
165 |
200 |
208 |
- |
24 |
295 |
12 |
M20 |
240 |
PN2.5MPa |
15 |
16 |
52 |
15 |
24 |
31 |
40 |
0.12 |
65 |
4 |
M12 |
80 |
20 |
19 |
62 |
19 |
30 |
40 |
50 |
0.24 |
75 |
4 |
M12 |
90 |
|
25 |
22 |
72 |
24 |
36 |
47 |
58 |
0.34 |
85 |
4 |
M12 |
90 |
|
32 |
28 |
83 |
31 |
46 |
56 |
68 |
0.53 |
100 |
4 |
M16 |
110 |
|
40 |
31.5 |
93 |
39 |
55 |
66 |
78 |
0.80 |
110 |
4 |
M16 |
115 |
|
50 |
40 |
108 |
48 |
65 |
78 |
90 |
1.2 |
125 |
4 |
M16 |
125 |
|
65 |
46 |
128 |
62 |
80 |
95 |
110 |
1.8 |
145 |
8 |
M16 |
135 |
|
80 |
50 |
142 |
76 |
96 |
110 |
128 |
2.2 |
160 |
8 |
M16 |
145 |
|
100 |
60 |
168 |
95 |
115 |
135 |
150 |
3.8 |
190 |
8 |
M20 |
160 |
|
125 |
90 |
194 |
110 |
125 |
132 |
- |
9.2 |
220 |
8 |
M24 |
205 |
|
150 |
106 |
224 |
127 |
150 |
158 |
- |
15 |
250 |
8 |
M24 |
225 |
|
200 |
140 |
284 |
165 |
200 |
208 |
- |
26 |
310 |
12 |
M24 |
260 |
|
PN4.0MPa |
15 |
16 |
52 |
15 |
24 |
31 |
40 |
0.12 |
65 |
4 |
M12 |
80 |
20 |
19 |
62 |
19 |
30 |
40 |
50 |
0.24 |
75 |
4 |
M12 |
90 |
|
25 |
22 |
72 |
24 |
36 |
47 |
58 |
0.34 |
85 |
4 |
M12 |
90 |
|
32 |
28 |
83 |
31 |
46 |
56 |
68 |
0.53 |
100 |
4 |
M16 |
110 |
|
40 |
31.5 |
93 |
39 |
55 |
66 |
78 |
0.80 |
110 |
4 |
M16 |
115 |
|
50 |
40 |
108 |
48 |
65 |
78 |
90 |
1.2 |
125 |
4 |
M16 |
125 |
|
65 |
46 |
128 |
62 |
80 |
95 |
110 |
1.8 |
145 |
8 |
M16 |
135 |
|
80 |
50 |
142 |
76 |
96 |
110 |
128 |
2.2 |
160 |
8 |
M16 |
145 |
|
100 |
60 |
168 |
95 |
115 |
135 |
150 |
3.8 |
190 |
8 |
M20 |
160 |
|
125 |
90 |
194 |
110 |
125 |
132 |
- |
9.2 |
220 |
8 |
M24 |
205 |
|
150 |
106 |
224 |
127 |
150 |
158 |
- |
15 |
250 |
8 |
M24 |
225 |
|
200 |
140 |
291 |
165 |
200 |
208 |
- |
28 |
320 |
12 |
M27 |
275 |
主要尺寸及重量
公称压力 |
公称通径 |
尺寸(mm) |
重量 |
配管法兰(供参考) |
|||||||
L |
D |
D2 |
D3 |
D4 |
螺栓孔中心 |
螺栓 |
螺栓 |
螺栓 |
|||
PN6.3MPa |
15 |
25 |
62 |
15 |
25 |
25 |
0.5 |
75 |
4 |
M12 |
100 |
20 |
31.5 |
73 |
19 |
30 |
30 |
0.7 |
90 |
4 |
M16 |
115 |
|
25 |
35.5 |
83 |
24 |
36 |
36 |
1.0 |
100 |
4 |
M16 |
130 |
|
32 |
40 |
89 |
31 |
43 |
43 |
1.3 |
110 |
4 |
M20 |
140 |
|
40 |
45 |
104 |
39 |
52 |
52 |
2.0 |
125 |
4 |
M20 |
150 |
|
50 |
56 |
114 |
48 |
62 |
62 |
3.2 |
135 |
4 |
M20 |
160 |
|
65 |
63 |
138 |
62 |
75 |
75 |
4.5 |
160 |
8 |
M20 |
170 |
|
80 |
71 |
148 |
76 |
90 |
90 |
5 |
170 |
8 |
M20 |
180 |
|
100 |
80 |
174 |
95 |
112 |
112 |
7 |
200 |
8 |
M24 |
200 |
|
125 |
110 |
211 |
110 |
125 |
132 |
13 |
240 |
8 |
M27 |
245 |
|
150 |
125 |
248 |
127 |
150 |
158 |
22 |
280 |
8 |
M30 |
270 |
|
200 |
160 |
310 |
165 |
200 |
208 |
40 |
345 |
12 |
M33 |
325 |
|
PN10.0MPa |
15 |
25 |
62 |
15 |
25 |
25 |
0.6 |
75 |
4 |
M12 |
100 |
20 |
31.5 |
73 |
19 |
30 |
30 |
1.0 |
90 |
4 |
M16 |
115 |
|
25 |
35.5 |
83 |
24 |
36 |
36 |
1.3 |
100 |
4 |
M16 |
130 |
|
32 |
40 |
89 |
31 |
43 |
43 |
1.6 |
110 |
4 |
M20 |
140 |
|
40 |
45 |
104 |
39 |
52 |
52 |
2.5 |
125 |
4 |
M20 |
150 |
|
50 |
56 |
120 |
48 |
62 |
62 |
3.8 |
145 |
4 |
M24 |
175 |
|
65 |
63 |
144 |
62 |
75 |
75 |
6 |
170 |
8 |
M24 |
185 |
|
80 |
71 |
154 |
76 |
90 |
90 |
7 |
180 |
8 |
M24 |
195 |
|
100 |
80 |
181 |
95 |
112 |
112 |
10 |
210 |
8 |
M27 |
220 |
|
125 |
110 |
218 |
110 |
132 |
132 |
18 |
250 |
8 |
M30 |
265 |
|
150 |
125 |
258 |
127 |
158 |
158 |
30 |
290 |
12 |
M30 |
285 |
|
200 |
160 |
324 |
165 |
208 |
208 |
56 |
360 |
12 |
M33 |
345 |
|
PN16.0MPa |
15 |
25 |
58 |
15 |
25 |
25 |
0.6 |
75 |
4 |
M16 |
70 |
20 |
31.5 |
69 |
19 |
30 |
30 |
0.9 |
90 |
4 |
M20 |
85 |
|
25 |
35.5 |
79 |
24 |
36 |
36 |
1.3 |
100 |
4 |
M20 |
90 |
|
32 |
41 |
92 |
31 |
43 |
43 |
1.7 |
115 |
4 |
M22 |
100 |
|
40 |
45 |
100 |
39 |
52 |
52 |
2.2 |
125 |
4 |
M24 |
110 |
|
50 |
56 |
142 |
48 |
62 |
62 |
5.6 |
165 |
4 |
M22 |
115 |
|
65 |
63 |
162 |
62 |
75 |
75 |
7.5 |
190 |
8 |
M27 |
130 |
|
80 |
71 |
176 |
76 |
90 |
90 |
9 |
205 |
8 |
M27 |
140 |
|
100 |
80 |
208 |
95 |
112 |
112 |
14 |
240 |
8 |
M30 |
155 |
|
125 |
110 |
247 |
110 |
132 |
132 |
27 |
285 |
8 |
M36 |
195 |
|
150 |
125 |
280 |
127 |
158 |
158 |
38 |
318 |
12 |
M36 |
210 |
|
200 |
160 |
356 |
165 |
208 |
208 |
76 |
400 |
12 |
M42 |
260 |
主要尺寸及重量
公称压力 |
公称通径 |
尺寸(mm) |
重量 |
配管法兰(供参考) |
|||||||
L |
D |
D2 |
D3 |
D4 |
螺栓孔中心 |
螺栓 |
螺栓 |
螺栓 |
|||
PN16.0MPa |
15 |
25 |
62 |
15 |
25 |
25 |
0.6 |
75 |
4 |
M12 |
115 |
20 |
31.5 |
73 |
19 |
30 |
30 |
1.0 |
90 |
4 |
M16 |
135 |
|
25 |
35.5 |
83 |
24 |
36 |
36 |
1.3 |
100 |
4 |
M16 |
145 |
|
32 |
40 |
89 |
31 |
43 |
43 |
1.6 |
110 |
4 |
M20 |
160 |
|
40 |
45 |
104 |
39 |
52 |
52 |
2.5 |
125 |
4 |
M20 |
170 |
|
50 |
56 |
120 |
48 |
62 |
62 |
3.8 |
145 |
4 |
M24 |
195 |
|
65 |
63 |
144 |
62 |
75 |
75 |
6 |
170 |
8 |
M24 |
210 |
|
80 |
71 |
154 |
76 |
90 |
90 |
7 |
180 |
8 |
M24 |
225 |
|
100 |
80 |
181 |
95 |
112 |
112 |
10 |
210 |
8 |
M27 |
250 |
|
125 |
110 |
218 |
110 |
125 |
132 |
18 |
250 |
8 |
M30 |
295 |
|
150 |
125 |
258 |
127 |
150 |
158 |
30 |
290 |
12 |
M30 |
325 |
|
200 |
160 |
325 |
165 |
200 |
208 |
58 |
360 |
12 |
M33 |
375 |
|
注:不同的法兰标准其尺寸有一定的差异,故配管法兰的螺栓直径 |
主要尺寸及重量
压力级 |
公称通径 |
尺寸(mm) |
重量 |
配管法兰(供参考) |
|||||||||||
NPS |
DN |
L |
D |
D2 |
D3 |
D4 |
螺栓孔心 |
螺栓 |
螺栓 |
螺栓 |
|||||
in |
mm |
RF |
RJ |
||||||||||||
Class150 |
1/2 |
15 |
25 |
46 |
15 |
25 |
25 |
0.28 |
60.5 |
4 |
1/2 |
M14 |
90 |
- |
|
3/4 |
20 |
31.5 |
56 |
19 |
30 |
30 |
0.42 |
70 |
4 |
1/2 |
M14 |
100 |
- |
||
1 |
25 |
35.5 |
65 |
24 |
36 |
36 |
0.56 |
79.5 |
4 |
1/2 |
M14 |
105 |
120 |
||
11/4 |
32 |
40 |
74 |
31 |
43 |
43 |
0.75 |
89 |
4 |
1/2 |
M14 |
115 |
130 |
||
11/2 |
40 |
45 |
84 |
39 |
52 |
52 |
1.3 |
98.5 |
4 |
1/2 |
M14 |
120 |
135 |
||
2 |
50 |
56 |
103 |
48 |
62 |
62 |
2.1 |
120.5 |
4 |
5/8 |
M16 |
140 |
155 |
||
21/2 |
65 |
63 |
122 |
62 |
75 |
75 |
2.8 |
139.5 |
4 |
5/8 |
M16 |
155 |
170 |
||
3 |
80 |
71 |
135 |
76 |
90 |
90 |
3.6 |
152.5 |
4 |
5/8 |
M16 |
165 |
180 |
||
4 |
100 |
80 |
173 |
95 |
112 |
112 |
4.8 |
190.5 |
8 |
5/8 |
M16 |
175 |
190 |
||
Class300 |
5 |
125 |
110 |
195 |
110 |
125 |
132 |
12 |
216.0 |
8 |
3/4 |
M20 |
210 |
225 |
|
6 |
150 |
125 |
220 |
127 |
150 |
158 |
17 |
241.5 |
8 |
3/4 |
M20 |
230 |
245 |
||
8 |
200 |
160 |
277 |
165 |
200 |
208 |
29 |
298.5 |
8 |
3/4 |
M20 |
270 |
285 |
||
1/2 |
15 |
25 |
52 |
15 |
250 |
25 |
0.3 |
66.5 |
4 |
1/2 |
M14 |
95 |
105 |
||
3/4 |
20 |
31.5 |
65 |
19 |
30 |
30 |
0.46 |
82.5 |
4 |
5/8 |
M16 |
110 |
125 |
||
1 |
25 |
35.5 |
72 |
24 |
36 |
36 |
0.6 |
89 |
4 |
5/8 |
M16 |
115 |
130 |
||
11/4 |
32 |
40 |
81 |
31 |
43 |
43 |
0.8 |
98.5 |
4 |
5/8 |
M16 |
125 |
140 |
||
11/2 |
40 |
45 |
94 |
39 |
52 |
52 |
1.5 |
114.5 |
4 |
3/4 |
M20 |
140 |
155 |
||
2 |
50 |
56 |
110 |
48 |
62 |
62 |
2.4 |
127.0 |
8 |
5/8 |
M16 |
145 |
170 |
主要尺寸及重量
压力级 |
公称通径 |
尺寸(mm) |
重量 |
配管法兰(供参考) |
||||||||||
NPS |
DN |
L |
D |
D2 |
D3 |
D4 |
螺栓孔中心 |
螺栓 |
螺栓 |
螺栓 |
||||
in |
mm |
RF |
RJ |
|||||||||||
Class300 |
11/2 |
65 |
63 |
128 |
62 |
75 |
75 |
3.0 |
149.0 |
8 |
3/4 |
M20 |
170 |
190 |
3 |
80 |
71 |
147 |
76 |
90 |
90 |
4.0 |
168.5 |
8 |
3/4 |
M20 |
185 |
205 |
|
4 |
100 |
80 |
179 |
95 |
112 |
112 |
5.5 |
200.0 |
8 |
3/4 |
M20 |
200 |
220 |
|
5 |
125 |
110 |
214 |
110 |
125 |
132 |
13 |
235.0 |
8 |
3/4 |
M20 |
235 |
255 |
|
6 |
150 |
125 |
249 |
127 |
150 |
158 |
22 |
270.0 |
12 |
3/4 |
M20 |
255 |
275 |
|
8 |
200 |
160 |
305 |
165 |
200 |
208 |
36 |
330.0 |
12 |
7/8 |
M24 |
305 |
325 |
|
Class600 |
1/2 |
15 |
25 |
52 |
15 |
25 |
25 |
0.4 |
66.5 |
4 |
1/2 |
M14 |
95 |
105 |
3/4 |
20 |
31.5 |
65 |
19 |
30 |
30 |
0.8 |
82.5 |
4 |
5/8 |
M16 |
110 |
125 |
|
1 |
25 |
35.5 |
72 |
24 |
36 |
36 |
1.0 |
89.0 |
4 |
5/8 |
M16 |
115 |
130 |
|
11/4 |
32 |
40 |
81 |
31 |
43 |
43 |
1.3 |
98.5 |
4 |
5/8 |
M16 |
125 |
140 |
|
11/2 |
40 |
45 |
94 |
39 |
52 |
52 |
1.8 |
114.5 |
4 |
3/4 |
M20 |
145 |
160 |
|
2 |
50 |
56 |
110 |
48 |
62 |
62 |
2.8 |
127.0 |
8 |
5/8 |
M16 |
155 |
170 |
|
21/2 |
65 |
63 |
128 |
62 |
75 |
75 |
4 |
149.0 |
8 |
3/4 |
M20 |
175 |
195 |
|
3 |
80 |
71 |
147 |
76 |
90 |
90 |
6 |
168.5 |
8 |
3/4 |
M20 |
190 |
210 |
|
4 |
100 |
80 |
191 |
95 |
112 |
112 |
11 |
216.0 |
8 |
7/8 |
M24 |
220 |
240 |
|
5 |
125 |
110 |
239 |
110 |
125 |
132 |
25 |
267.0 |
8 |
1 |
M27 |
265 |
285 |
|
6 |
150 |
125 |
264 |
127 |
150 |
158 |
32 |
292.0 |
12 |
1 |
M27 |
290 |
310 |
|
8 |
200 |
160 |
318 |
165 |
200 |
208 |
52 |
349.0 |
12 |
11/8 |
M30 |
345 |
365 |
|
Class900 |
1/2 |
15 |
25 |
62 |
15 |
25 |
25 |
0.6 |
82.5 |
4 |
3/4 |
M20 |
125 |
140 |
3/4 |
20 |
31.5 |
69 |
19 |
30 |
30 |
0.9 |
89.0 |
4 |
3/4 |
M20 |
135 |
150 |
|
1 |
25 |
35.5 |
77 |
24 |
36 |
36 |
1.2 |
101.5 |
4 |
7/8 |
M24 |
155 |
170 |
|
11/4 |
32 |
40 |
87 |
31 |
43 |
43 |
1.5 |
111.0 |
4 |
7/8 |
M24 |
160 |
175 |
|
11/2 |
40 |
45 |
97 |
39 |
52 |
52 |
2.0 |
124.0 |
4 |
1 |
M27 |
175 |
190 |
|
2 |
50 |
56 |
140 |
48 |
62 |
62 |
5.5 |
165.0 |
8 |
7/8 |
M24 |
195 |
210 |
|
21/2 |
65 |
63 |
162 |
62 |
75 |
75 |
7.5 |
190.5 |
8 |
1 |
M27 |
215 |
230 |
|
3 |
80 |
71 |
165 |
76 |
90 |
90 |
8 |
190.5 |
8 |
7/8 |
M24 |
210 |
225 |
|
4 |
100 |
80 |
204 |
95 |
112 |
112 |
14 |
235.0 |
8 |
11/8 |
M30 |
245 |
260 |
|
5 |
125 |
110 |
245 |
110 |
125 |
132 |
27 |
279.5 |
8 |
11/4 |
M33 |
290 |
310 |
|
6 |
150 |
125 |
286 |
127 |
150 |
158 |
41 |
317.5 |
12 |
11/8 |
M30 |
310 |
325 |
|
8 |
200 |
160 |
356 |
165 |
200 |
208 |
76 |
393.5 |
12 |
13/8 |
M36 |
375 |
390 |
|
注: |
订货须知:
1、 客户如对产品有特殊要求,须在订货合同中提供以下说明:
a.结构长度;
b.连接形式;
c.公称直径;
d.产品使用介质及温度、压力范围;
e.试验、检验标准及其他要求。
2、 本厂可根据客户特定要求配置各类驱动装置。
3、 如由客户提供确定的阀门类型和型号时,客户应正确说明其型号的含义和要求,在供需双方理解一致的条件下签订合同。
4、 期货、订货的客户请先来电函详细告诉所需的阀门型号、规格、数量以及交货时间、地点。并预付合同总额的30%货款,供方即备料