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��Q��MPa��	1.6	2.5	4.0	6.4	10.0	16.0
��ԇ�(y��n)��Mpa��	2.4	3.75	6.0	9.6	15.0	24
�ܷ�ԇ�(y��n)��Mpa��	1.6	2.5	4.0	6.4	10.0	16.0
��gao�M(j��n)�ډ��Mpa��	1.6	2.5	4.0	6.4	10.0	16.0
��ډ��Mpa��	1.0-1.0	0.1-1.6	0.1-2.5	0.5-3.5	0.5-35	0.5-45
��ƫ�Mpa��P2P	GB12246-1989
��ƫ�Mpa��P2G	GB12246-1989
��С��Mpa��	0.15	0.15	0.2	0.4	0.8	1.0
�B©��	GB12245-1989
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DN	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	500
Cv	1	2.5	4	6.5	9	16	25	36	64	100	140	250	400	570	780	1020	1500

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�y�w�y�w��w	WCB
�y��y�P	2Cr13
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��(d��o)�y��(d��o)�y�U	2Cr13
��y��	1Cr18Ni9Ti
��(d��o)�y��	50CrVA
�{(di��o)��(ji��)��	60Si12Mn

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��Qͨ�� DN	��γߴ�
	L		H	H1
	1.6/2.5MPa	4.0MPa	H	H1
15	160	180	295	90
20	160	180	330	98
25	180	200	330	110
32	200	220	330	110
40	220	240	345	125
50	250	270	345	125
65	280	300	350	130
80	310	330	385	160
100	350	380	385	170
125	400	450	400	200
150	450	500	415	210
200	500	550	475	240
250	650		525	290
300	800		580	335
350	850		620	375
400	900		660	405
450	900		730	455
500	950		750	465