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Ball valve
Check valve
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API Swing Check Valve

1. Design and manufacture of ptoduct according to American state standard ANSI B16.34,American petroleum institute standard API6D.
2. Small opening pressure, the disc can be opened fully with a very small pressure differential.
3. Rocker and hinge pin use inside-set design, reduces outer leakage point.
4. The body and bonnet of class 1500~Class 900 check valve is connected with stud. And the body and bonnet of class 1500~class 2500 check valve pressure seat structure to make product bulk small, weight light, seal credible.

STANDARD

Type	Design And Manufacture	Face to face /End to end	Flange Dimension	Pressure and Temperature	lnspection and test
Swing check valve	APl6D	ASME B16.10	ASME B16.5	ASME B16.34	APl 598
Lift check valve	BS1868

SIZE		Class 150						Class 300
NPS	DN	Dimension(mm)					Weight (KGS)	Dimension(mm)					Weight (KGS)
		L			d	H		L			d	H
		RF	RTJ	BW	d	H		RF	RTJ	BW	d	H
2	50	203	216	203	51	132	15	267	283	267	51	144	20
2.5	65	216	229	216	64	147	20	292	308	292	64	169	35
3	80	241	254	241	76	176	27	318	333	318	76	210	40
4	100	292	305	292	102	198	45	356	371	356	102	260	61
5	125	330	343	330	127	255	58	400	416	400	127	295	80
6	150	356	368	356	152	320	69	445	460	445	152	326	130
8	200	495	508	495	203	380	131	533	549	533	203	380	190
10	250	622	635	622	254	440	219	622	638	622	254	440	296
12	300	699	711	699	305	480	321	711	727	711	305	520	450
14	350	787	800	787	337	530	380	838	854	838	337	540	640
16	400	864	876	864	387	580	560	864	879	864	387	588	850
18	450	978	991	978	438	618	630	978	994	978	438	670	1030
20	500	978	991	978	489	657	770	1016	1035	1016	483	720	1330

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API Swing Check Valve