Manual Fully Welded Extension Rod Ball Valve

• Customization: Available
• Media: Oil
• Material: Carbon Steel
• Model NO.: HZQ
• Connection Form: Clamp
• Driving Mode: Pneumatic
• Nominal Pressure: ANSI CLASS 150-900
• Channel: Angle Type
• Structure: Fixed Ball Valve
• Type: Fixed Ball Valve
• Temperature: High Temperature
• Standard: Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Plywood Case
• Specification: DN50-DN1200
• Trademark: HUIZHENG
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000pieces/Year

Product Description

Introduction of Buried Extension Rod Ball Valve

Q61F/H/Y extension rod buried fully welded ball valve is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines. Its strength, safety, and harsh environment resistance have been specially considered in the design. Suitable for various corrosive and non-corrosive media. Compared with the floating ball valve, when working, the force produced by the fluid pressure in front of the valve on the ball is all transmitted to the bearing, and the ball will not move to the valve seat, so the valve seat will not bear excessive pressure, so the fixed ball valve The torque is small, the deformation of the valve seat is small, the sealing performance is stable, and the service life is long. It is suitable for high pressure and large diameter occasions. The advanced spring pre-valve seat assembly has self-tightening characteristics to achieve upstream sealing. Each valve has two valve seats, which can be sealed in each direction, so the installation has no flow direction restriction and is bidirectional. This valve is generally installed horizontally.

Q61F/H/Y extension rod buried fully welded ball valve has two-piece and three-piece valve body structures, the middle flange is connected by bolts, and the seal is made of reinforced PTFE embedded in the stainless steel ring, behind the steel ring The part is equipped with a spring to ensure that the valve seat is close to the ball and keeps the seal. Both the upper and lower valve stems are equipped with PTFE bearings to reduce friction and save labor. The bottom of the small shaft is equipped with an adjustment plate to ensure the joint position of the ball and the sealing ring. Full bore diameter: The flow aperture of the valve is the same as the inner diameter of the pipeline to facilitate the pipeline cleaning.

Performance advantages of direct-buried extension rod ball valve
1. Labor-saving operation: the ball is supported by the upper and lower bearings to reduce friction and eliminate the excessive torque caused by the huge sealing load formed by the imported pressure pushing the ball and the sealing seat.
2. Reliable sealing performance: PTFE unisexual material sealing ring is embedded in the stainless steel valve seat, and the end of the metal valve seat is equipped with a spring to ensure sufficient pre-tightening force of the sealing ring. When the sealing surface of the valve wears during use, it will be under the action of the spring. The valve continues to ensure good sealing performance.
3. Fireproof structure: In order to prevent the PTFE seal ring from being burnt due to sudden heat or fire, large leakage occurs, and the fire is promoted, a fireproof seal ring is set between the ball and the valve seat. When the seal ring is burned, Under the action of the spring force, the valve seat sealing ring is quickly pushed to the ball to form a metal-to-metal seal, which has a certain degree of sealing effect. The fire resistance test meets the requirements of AP16FA and API607 standards.
4. Automatic pressure relief function: When the pressure of the stagnant medium in the valve cavity rises abnormally and exceeds the pre-stress of the spring, the valve seat will move backward and separate from the sphere to achieve the effect of automatic pressure relief. The valve seat will automatically recover after pressure relief.
5. Drainage pipeline: Drain holes are set up and down the valve body to check whether the valve seat is leaking. During work, when the valve is fully open or fully closed, the pressure in the middle cavity can be removed and the packing can be directly replaced; the middle cavity can be discharged Retentate, reduce the pollution of the medium to the valve.

Features of Buried Extension Rod Ball Valve
1. Double blocking and discharge function: the fixed ball valve adopts a spring pre-tensioned floating seat, no matter the valve is in the fully open or fully closed state, the upstream and downstream valve seats block the fluid, and the retentate in the valve body is discharged through the discharge valve. .
2. Automatic pressure relief function: When the temperature of the medium in the valve body cavity increases and causes abnormal pressure rise, it does not need to pass through the safety valve, but the valve seat function can automatically relieve the pressure, which is to ensure the safety of the valve when transporting liquid media Sex is very important.

MPa	DN	L	D	D1	D2	H	N-M	D0
1.0	50	43	160	125	100	330	4-16	180
	65	46	180	145	120	360	4-16	180
	80	46	195	160	135	390	4-16	220
	100	52	215	180	155	440	8-16	220
	125	56	245	210	185	510	8-16	230
	150	56	280	240	210	600	8-20	280
	200	60	335	295	265	700	8-20	360
	250	68	390	350	320	840	12-20	360
	300	78	440	400	368	960	12-20	400
	350	78	500	460	428	1110	16-20	400
	400	102	565	515	482	1250	16-22	400
	450	114	615	565	532	1380	20-22	530
	500	127	670	620	585	1530	20-22	530
	600	154	780	725	685	1800	20-27	600
	700	165	895	840	800	2150	24-27	600
	800	190	1010	950	898	2420	24-30	680
	900	203	1110	1050	1005	2680	28-30	680
	1000	216	1220	1160	1115	3100	28-30	700
	1200	254	1450	1380	1325	3450	32-36	800
1.6	50	43	160	125	99	330	4-16	180
	65	46	185	145	120	360	4-16	180
	80	46	200	160	135	390	8-16	220
	100	52	220	180	155	440	8-16	220
	125	56	250	210	185	510	8-16	230
	150	56	285	240	210	600	8-20	280
	200	60	340	295	265	700	12-20	360
	250	68	405	355	310	840	12-22	360
	300	78	460	410	375	960	12-22	400
	350	78	520	470	435	1110	16-22	400
	400	102	580	525	485	1250	16-27	400
	450	114	640	585	545	1380	20-27	530

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