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API����(bi��o)�l�y300LB��һ�N��Ҋ(ji��n)�Ľ�?c��i)��y����Ҫ�Á�(l��i)��ͨ���?c��i)��·�еĽ��|(zh��)���l�y���l����Ѓ����ܷ����\(y��n)��(d��ng)�����c���|(zh��)����ֱ���l�y�����ͨ�^(gu��)������(qi��ng)�Ɖ����y�������_(d��)���ܷ�Ҫ��������(n��i)���Y(ji��)��(g��u)�ɷ֞飺Шʽ���l��ʽ�������l��ʽ���p�l��ʽ��ƽ���l��ʽ��Ҳ�ɷ֞飺���U�l�y�Ͱ��U�l�y�������ڳ��_(k��i)�����]��(ch��ng)�����߂�����С���m�÷����V�����ܽ��|(zh��)�����������m���Ƴɴ�ڏ����y�T(m��n)��***�c(di��n)��Ҳ���ܷ���ĥ�p�������������γߴ�����_(k��i)�]�r(sh��)�g�L(zh��ng)�����m���{(di��o)��(ji��)���|(zh��)������ȱ�c(di��n)��

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propertg and specification

ԇ�(y��n)���� Test pressure	���Q(ch��ng)������LB�� Nominal pressure	�m�ý��|(zh��) Appllcable	�m�Üضȣ��棩 Appllicable tem- perature
	300
���w��(qi��ng)��ԇ�(y��n)��Mpa�� Shell strength test��Mpa��	7.8	ˮ�����⡢��Ʒ Water steam oil	≤425��
�ܷ�ԇ�(y��n)��Һ����Mpa�� Seal test��Mpa��	5.6
�ܷ�ԇ�(y��n)���⣩��Mpa�� Seal test��Mpa��	0.5��0.7

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Material for main parts

�y�w���y�w���y�� Body��Bonnet�� disc	�y�U Stem	�ܷ��� Seat	�|Ƭ(�h(hu��n)�� Gasket	���� Packing	�����ض�(��) Working temperature	�m�ý��|(zh��) Suitable medium
WCB	2Cr13 F304 F316	13Cr STELLITE F304 F316	304+Flexible Graphite 316+Flexible Graphite 08 Soft Steel	Flexible Graphite PTFE	-196��-565��	Water Steam Oil Gas Nitric acid Acetic acid
LCB
WC6
WC9
C5
CF8
CF3
CF8M
CF3M

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Main external and connection dimension (300LB)

in	DN	LRF	LBW	D	D1	b	n-φd	A	B	H	W
2 1/2"	65	241	241	191	149.4	24	8-φ22	75	63	370	240
3"	80	283	283	210	168.1	27	8-φ22	91	78	395	300
4"	100	305	305	255	200.2	30	8-φ22	117	102	470	320
5"	125	381	381	280	235.0	33	8-φ22	144	128	660	350
6"	150	403	403	320	269.7	35	12-φ22	172	154	715	400
8"	200	419	419	380	330.2	40	12-φ25	223	203	815	400
10"	250	457	457	445	387.4	46	16-φ29	278	255	1005	450
12"	300	502	502	520	450.9	49	16-φ32	329	305	1135	500
14"	350	762	762	585	514.5	52	20-φ32	362	337	1490	550
16"	400	838	838	650	571.5	56	20-φ35	413	387	1580	600
18"	450	914	914	710	628.5	59	24-φ35	464	438	2020	650
20"	500	991	991	775	686	62	24-φ35	516	489	2230	700
24"	600	1143	1143	915	813	68	24-φ41	619	591	2650	750
26"	650	1245	1245	867	803	89	32-φ32	670	635	3220	800
28"	700	1346	1346	921	857	89	36-φ34	721	686	3380	850
3"	750	1397	1397	991	921	94	36-φ36	772	737	3530	900
32"	800	1524	1524	1054	978	103	32-φ41	825	797	/	/
36"	900	1727	1727	1171	1089	103	36-φ35	927	900	/	/