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GB/T1853-1994���÷��m�T��ς�(c��)��ֹֹ���y Marine flanged cast steel over board stop check valves ����Ҏ(gu��)�� Technical Data A��AS�ʹ��÷��m�T�ֱͨ���ς�(c��) ��ֹֹ���y ����Ҏ(gu��)�� ���Q���� Nominal Pressure (MPa) ���Qͨ�� Nominal Diameter (mm) �m�ý��|(zh��)...

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�a(ch��n)Ʒ�ڏ���DN����40~350(mm)

�a(ch��n)Ʒ������PN����0.6Mpa(Mpa)

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GB/T1853-1994���÷��m�T��ς�(c��)��ֹֹ���y
Marine flanged cast steel over board stop check valves

����Ҏ(gu��)�� Technical Data
A��AS�ʹ��÷��m�T�ֱͨ���ς�(c��)��ֹֹ���y����Ҏ(gu��)��
���Q����
Nominal Pressure
(MPa)		 ���Qͨ��
Nominal Diameter
(mm)		 �m�ý��|(zh��)
Applicable medium
0.6 40-350 ��ˮ����ˮ
Sea water.Fresh water

��Ҫ�㲿�����|(zh��)Materials of Main Parts
A��AS�ʹ��÷��m�T�ֱͨ���ς�(c��)��ֹֹ���y��Ҫ�㲿�����|(zh��)
������Q
Parts name		 ����
Material
���Q
Name		 ��̖
Marks
�y�w���y�w
Body��Cover		 �T�
Cast steel		 ZG230-450
�y�P���y��
Disc��Seat		 �T�a���~
Cast Tin Bronze		 ZCuAI9Mn2
�y�U
Stem		 ����~
Aluminum Bronze		 CuAI9Mn2

�����ߴ�Dimensions

Aʹ÷mTֱͨς(c)ֹֹyߴ

A�ʹ��÷��m�T�ֱͨ���ς�(c��)��ֹֹ���y�����ߴ�Dimensions

���Qͨ��
DN
(mm)		 �Y(ji��)��(g��u)�ߴ�
Structure Dimension		 �ں�
Thickness
t		 ���m
Flange		 ��˨
Bolt		 ��݆
Hand wheel		 ����
Lift Range
m		 ��������
Weight
(kg)
L H≈
A�� A�� D D1 D2 do b n�� Th. Do S A��
40 200 300 6 125 93 74 15 13 6 M14 120 11 12 7.8
50 230 318 7 135 103 84 15 13 6 M14 140 12 15 10.8
65 290 348 7 155 123 104 15 14 6 M14 140 12 19 16.3
80 310 390 7 170 138 118 15 14 8 M14 160 14 23 21.6
100 350 414 8 190 158 138 15 14 8 M14 180 14 28 29.7
125 400 466 8 215 183 164 16 14 10 M14 200 17 35 39.8
150 480 528 9 240 208 190 16 14 12 M14 200 17 42 54.8
200 600 736 10 295 264 247 16 15 12 M14 280 22 55 89.0
250 730 858 11 365 327 306 18 16 14 M16 320 27 65 139.4
300 850 1015 12 430 386 360 22 19 14 M20 400 27 80 192.6
350 980 1065 12 480 436 410 22 28 16 M20 450 32 100 230.9

AS�ʹ��÷��m�T�ֱͨ���ς�(c��)��ֹֹ���y�ͻ����ߴ�Dimensions
���Qͨ��
DN
(mm)		 �Y(ji��)��(g��u)�ߴ�
Structure Dimension		 �ں�
Thickness
t		 ���m
Flange		 ��˨
Bolt		 ��݆
Hand wheel		 ����
Lift Range
m		 ��������
Weight
(kg)
L ��H≈
AS�� AS�� D D1 D2 do b n�� Th. Do S AS��
40 200 300 6 130 100 80 14 16 4 M12 120 11 12 8.2
50 230 318 7 140 110 90 14 16 4 M12 140 12 15 12.8
65 290 348 7 160 130 110 14 16 4 M12 140 12 19 19.5
80 310 390 7 190 150 128 18 18 4 M16 160 14 23 24.9
100 350 414 8 210 170 148 18 18 4 M16 180 14 28 32.65
125 400 466 8 240 200 178 18 20 8 M16 200 17 35 45.8
150 480 528 9 265 225 202 18 20 8 M16 200 17 42 59.8
200 600 736 10 320 280 258 18 22 8 M16 280 22 55 97.1
250 730 858 11 375 335 316 18 24 12 M16 320 27 65 148.4
300 850 1015 12 440 395 365 22 24 12 M20 400 27 80 201.7
350 980 1065 12 490 445 415 22 24 12 M20 450 32 100 239.9
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