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Fixed cast steel ball valve (electric)

Technical Specifications

Valve model: Q947F/H
Piping specification: DN25 to 700mm
Structural form: Two-section cast valve body
Valve body material: Cast steel (WCB), Stainless steel (304, 316, 316L)
Nominal pressure: PN1.6, 2.5, 4.0, 6.4 MPa
Applicable temperature range: -40℃ to 425℃
Application scope: Petrochemical industry, gas equipment, power equipment, environmental water treatment

Sales Hotline：

0086-21-59110018

Product Details

Product structural characteristics

The series of fixed ball valves are mainly applicable to industries such as natural gas, oil products, chemical engineering, metallurgy, urban construction, environmental protection, pharmaceuticals, food, etc. Among them, the anti-sulfur series is suitable for natural gas long-distance pipelines with hydrogen sulfide-containing media, high impurity content, and severe corrosion.

Its main structural features are:

Shell structure: The valve body of the fixed ball valve can be designed in three forms according to the user's requirements and actual working conditions: casting structure, forging structure, and fully welded structure. Among them, the fully welded structure ball valve is mainly suitable for underground use.
2. Special valve seat sealing structure: Fixed ball valves are designed with different sealing structures based on the pressure level, medium properties, and sealing requirements. These include the front seal structure, rear seal structure, or a dual seal structure at both the front and rear.
3. Automatic Pressure Relief Structure: When the pressure in the middle chamber abnormally rises, the ball valve with a single-sealed structure has the function of automatic pressure relief, while the ball valve with a double-sealed structure is relieved by the additional pressure relief device on the valve body.
4. Sealed emergency rescue: When the sealing components of the valve seat and valve stem are damaged and cause leakage, the sealing grease injected through the grease injection valve can provide a temporary sealing effect.
5. Fireproof Structure; According to the working conditions and the needs of the users, the ball valve can be designed as a fireproof structure. The fire-resistant design of the ball valve complies with the provisions of standards such as API 607, API 6FA and JB/T 6899. In the event of a fire causing the soft sealing ring to burn out, the fireproof structure of the ball valve can prevent a large amount of medium from leaking and prevent the further expansion of the fire.
6. Anti-static structure: When operating the valve, due to the friction between the ball and the valve seat, static electric charges will be generated and accumulate on the ball. To prevent the occurrence of static sparks, an anti-static device is specially installed on the valve to discharge the accumulated charges on the ball.
7. Blocking and Discharge: When the valve is in the closed position, the valve seats at both the upstream and downstream sides block the flow of fluid. The accumulated substances in the chamber of the valve body can be discharged through the discharge device.
8. Locking device: A locking structure is designed at the fully open and fully closed positions of the manual ball valve. This ensures that accidental operation is prevented and abnormal switching phenomena caused by unpredictable line vibrations are avoided. Especially in the production lines of flammable media such as petroleum and chemical substances, as well as when the valve is installed outdoors, this design demonstrates particularly excellent advantages and practical effects.
9. Full-bore structure and reduced-bore structure: To meet the diverse needs of users, our ball valve products are available in both full-bore and reduced-bore series. The inner diameter of the channel in the full-bore ball valve is consistent with the inner diameter of the pipeline, which is convenient for management and cleaning. While the reduced-bore series ball valves are relatively lightweight in weight, and the fluid resistance is only about 1/7 of that of the same-sized stop valve. Therefore, the application prospects of the reduced-bore series ball valves are more extensive.

Main connection dimensions(PN1.6MPa)

DN		25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700
d1		25	32	40	50	65	80	100	125	150	200	250	300	337	387	438	489	591	686
L		165	180	190	216	241	283	305	356	394	457	533	610	686	762	864	914	1067	1245
H		50	55	80	102	114	127	152	184	219	273	360	395	430	470	550	580	700	800
Electric	H2	-	-	-	-	-	-	-	-	554	600	652	760	770	830	-	940	940	1115
Electric	L1	-	-	-	-	-	-	-	-	235	235	235	259	400	400	-	410	410	410

Main connection dimensions(PN2.5MPa)

DN		25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700
d1		25	32	40	50	65	80	100	125	150	200	250	300	337	387	438	489	591	686
L		165	180	190	216	241	283	305	381	403	502	568	648	762	838	914	991	1143	1346
H		50	55	80	102	114	127	152	184	219	273	360	395	430	470	550	580	700	800
Electric	H2	-	-	-	-	-	-	-	-	235	235	400	400	410	410	-	420	690	690
Electric	L1	-	-	-	-	-	-	-	-	74	350	350	420	420	400	-	400	410	650

Main connection dimensions(PN4.0MPa)

DN		25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700
d1		25	32	40	50	65	80	100	125	150	200	250	300	337	387	438	489	591	686
L		165	180	190	216	241	283	305	381	403	502	568	648	762	838	914	991	1143	1346
H		50	55	80	102	114	127	152	184	219	273	360	395	430	470	550	580	700	800
Electric	H2	-	-	-	-	-	-	-	-	235	235	400	400	410	410	-	420	690	690
Electric	L1	-	-	-	-	-	-	-	-	74	350	350	420	420	400	-	400	410	650

Main connection dimensions(PN6.4MPa)

DN		50	65	80	100	150	200	250	300	350	400	500	600	700
d1		50	65	80	100	150	200	250	300	337	387	489	591	686
L		292	330	356	406	495	597	673	762	826	902	1054	1232	1397
H		114	124	133	159	250	294	395	445	500	530	660	800	900
Electric	H2	-	-	-	-	554	574	731	771	867	802	979	1085	1148
Electric	L1	-	-	-	-	235	235	400	400	410	410	420	690	690