Forged Steel Trunnion Type Ball Valve（Pneumatic )-Pneumatic valve series-气动阀厂家-上海冠环阀门制造有限公司

Product Design Features

Serial floating ball valves are mainly applied to natural gas,oil products,chemical engineering,metallurgy,city building,environment protection,pharmacy and food industries, among which the anti-sulphur series are used for long delivery pipes of natural gas that contains hydrogen sulphide medium,a lot of impurity and corrosive substances.

The main structure features include:

1.Construction of the shell

The valve bush of the stationary ball valve can be designed to three types:casting construction, forging construction, and full welding construction,according to user's demand or different working condition.And the ball valve of the full welding construction is mainly applied to underground operation.

2.The unique sealed structure of valve seat

Pre-ball sealed structure,post-ball sealed structure or pre-post-ball double sealed structures are available for choosing to different pressure,medium properties,and sealing requirements of the fixed ball valves.

3.Automatic pressure-relieving structure

When an abnormal rising of pressure appear in the hollow cavity,the single sealed-structure takes on the function of automatic pressure relieving,whiie the double-sealed structure can finish the job through a attached pressure-reliving device to the valve body.

4.Emergent repairman for the sealed structure

When leak was caused by damage on the valve seat or valve stick,the sealed grease injected through the grease feeding valve can seal the valve at once.

5.Fire-resistant Structure

According to the operating condition and user's requirement,ball valve can be designed with a fire-resistant structure up to the fire resistant standards of API607,API 6FA and JB/T6899.Once the soft seal ring is burnt out on fire,the structure can avoid serious leaking of the medium and prevent the fire from scaling up.

6.Anti-static Structure

While operating the valve,the friction between the sphere and the base will produce static charges accumulating on the sphere.To avoid static sparkle,the fire-resistant device is designed to derive the accumulated static sparkle,charges from the sphere.

7.Jam and release

When the valve is close,the valve seats will stop the effluence,and the precipitate in the can be released through the releasing device.

8.Locking Device

A locking structure is designed on the full-open and full-close spots of manual ball valves to avoid abnormal open-and-close produced by miss-operation or unpredictable circuit vibration.On production lines of petroleum and chemicals of flammable mediums,and during the course of outdoor piping,the design is especially advantageous and practical.

9.Full Drift Diameter Structure and Retractive Diameter Structure

The two structure series are produced to meet different requirement of users,The passage inside diameter of full diameter ball valves is the same as that of valve pipe,which is convenient for pipe cleaning.The weight of retractive diameter ball valves is relatively lighter,but the fluid resistance is just 1/7 that of stop valves with the same caliber.Therefore,the application prospects of retractive diameter series is much better.

Main overall dimensions PN1.6MPa CLASS 150

DN	mm	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900
NPS	in	2	21/2	3	4	5	6	8	10	12	14	16	18	20	24	28	32	36
Flange	L	178	191	203	229	356	394	457	533	610	686	762	864	914	1067	1245	1372	1524
Butt welding	L1	216	241	283	305	381	457	521	559	635	762	838	914	991	1143	1346	1524	1727
Manual	H	130	142	191	200	226	242	-	-	-	-	-	-	-	-	-	-	-
	W	230	350	400	450	750	750	-	-	-	-	-	-	-	-	-	-	-
	WT(kg)	12	28	33	50	78	93	-	-	-	-	-	-	-	-	-	-	-
Gear	H	-	-	-	-	-	-	337	385	414	447	545	545	585	663	723	923	986
	W	-	-	-	-	-	-	600	600	800	800	800	800	800	800	800	800	800
	WT(kg)	-	-	-	-	-	-	250	390	578	770	1100	1250	1800	2400	4500	6900	9700
Pneumatic	H	269	379	389	479	552	666	769	824	897	937	1121	1161	1203	1145	1160	1460	1510
	H1	174	248	258	322	395	457	560	615	653	691	816	856	898	915	930	1100	1150
	L1	89	148	148	287	287	378	378	378	530	530	680	680	680	1455	1455	1665	1665
	L2	181	257	257	287	287	378	378	378	530	530	680	680	680	1455	1455	1665	1665
	WT(kg)	32	42	53	100	125	157	265	410	595	795	1150	1295	1910	2400	4600	7100	10100
Eectric	H	-	-	-	-	-	559	710	744	851	859	959	999	965	1141	1233	1341	1666
	H1	-	-	-	-	-	342	492	527	570	608	708	748	790	866	960	1068	1100
	W	-	-	-	-	-	200	200	200	280	280	280	305	305	305	400	400	460
	WT(kg)	-	-	-	-	-	152	245	425	610	800	1180	1300	1200	2500	4710	7300	10200