XIAMEN JIREH INDUSTRIAL CO., LTD.

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The main advantages of tilting disc check valve are to overcome the bump, water hammer of swing check valve and lift check valve under the work condition to achieve smooth operation.

Standards:

Design conform to ASME B16.34

Structural dimension：ASME B16.10

Flange dimension：ASME B16.5

Check and test：API 598

Pressure class：Class 150、300、600 PN 2.0 、5.0、10.0 MPa

Structural features

While closing, the seat ring can get in touch with the sealing face gradually. Then the double-eccentric center disc can work well without bump and noise.

Flexible metal seat is of good seal performance.

The disc with butterfly form has a long cycle life with quick open and close.

The tilting type makes flow passage streamlined to reduce the flow resistance and save the energy.

Material of main parts：

Body	CF8	CF8M	CF3	CF3M	CN7M	WCB	LCB
Disc	CF8+STL	CF8M+STL	CF3+STL	CF3M+STL	CN7M+STL	WCB+13CR	CF8+STL
Sealing Face	0Cr19Ni9	0Cr17Ni12Mo2	00Cr19Ni11	00Cr17Ni14Mo2	NO. 20 alloy	0Cr19Ni9	0Cr19Ni9
Sealing Face	PTFE

Compare with swing check valve and lift check valve：

Performance	Swing check valve	Tilting disc check valve
Lock up	Large	Little（about 1/5～1/8 of the former one）
Bump	Large	0
Sealing	Conform to API 598, leakage	no leakage
Flow resistance	Large（coefficient ξ=1.3～2.5）	Little（coefficient ξ=0.18～0.6）
Flow capacity	Little(coefficient Cv=76)	Large(coefficient Cv=154～333)
Weight	Large	Little（about 80% of the former one）

Class 150

NPS	2	2 1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32
DN	50	65	80	100	150	200	250	300	350	400	450	500	600	650	700	750	800
L	203	216	241	292	356	495	622	698	787	864	978	978	1295	1295	1143	1143	1194
D	160	182	196	230	300	390	432	510	540	635	700	770	900	930	991	1020	1150
W	178	198	224	252	326	426	456	530	576	670	740	818	948	988	1050	1090	1240
Weight (kg)	11	16	22	34	62	112	169	238	337	420	550	685	910	1055	1260	1540	1860

Class 300

NPS	2	2 1/2	3	4	6	8	10	12	14	16	18	20	24	26	28	30	32
DN	50	65	80	100	150	200	250	300	350	400	450	500	600	650	700	750	800
L	267	292	318	356	444	533	622	711	838	864	978	1016	1346	1346	1295	1372	1448
D	170	196	214	245	320	400	460	540	580	660	725	800	940	970	1040	1080	1210
W	198	220	232	268	360	426	457	572	620	690	760	848	988	1018	1250	1280	1350
Weight (kg)	17	22	32	97	110	162	228	380	443	530	780	980	1320	1364	1762	2050	2870

Class 600

NPS	2	2 1/2	3	4	6	8	10	12	14	16	18	20	24
DN	50	65	80	100	150	200	250	300	350	400	450	500	600
L	292	330	356	432	559	660	787	838	889	991	1092	1194	1397
D	185	196	210	270	340	440	520	570	610	690	755	850	990