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Top-mounted eccentric hemisphere valve (electric)

Technical Specifications

Product model: QPQ340F
Nominal diameter: DN100 - 1400mm
Nominal pressure: PN1.0 - 1.6 MPa
Main materials: Carbon steel WCB / Stainless steel CF8
Applicable media: natural gas, gas, liquefied gas, crude oil, heavy oil
Applicable temperature: ≤ 425℃
Flange connection dimensions: GB/T 9113.1-2000. ASME/ANSI 16.5
Structural length: GB 12221-2005, ASNE B16.10
Manufacturing and acceptance: GB12237-89, API 6D
Pressure test is in accordance with JB/T9092-1999, GB/T13927-92, AP1598

Sales Hotline：

0086-21-59110018

Product Details

Product Overview

The upper body eccentric hemispherical valve adopts the eccentric structure principle and achieves the purposes of gate tightening, adjustment and closing through the transmission mechanism. The double eccentric structure ball valve has the ball body hidden in the valve chamber when it is opened, with a large flow cross-section. When it is closed, the valve core spherical surface gradually moves along the valve seat, having a shearing function, effectively removing the obstruction caused by scale deposits and achieving reliable sealing. It is suitable for applications such as sewage treatment, pulp, alumina, urban heating and supply, oil products, natural gas, two-phase mixtures of liquid and solid or media prone to chemical crystallization.

Product features

1. The sealing is extremely tight, and the leakage of harmful gases can be reduced to zero during transportation.
2. The hemisphere of the valve is made of bimetallic material. Different alloys are deposited on the base metal, and the valve seat is also subjected to corresponding welding and undergoes special treatment to meet the requirements of various applications.
3. The valve core of the sealing pair is provided with a compensation amount. When the valve wears out, a slight rotation can be made when closing, ensuring a reliable seal and prolonging the service life.
4. Its structure adopts the eccentric compression principle and achieves the functions of locking, adjustment and closing through the transmission mechanism.

PN	DN（mm）	Size（mm）
PN	DN（mm）	L	D	K	d	b	z-d0	Hw	Hd
1.0MPa	100	229	220	180	156	22	8-φ18	330	380
	125	254	210	210	184	22	8-φ18	345	405
	150	267	240	240	211	24	8-φ22	370	440
	200	292	295	295	266	24	8-φ22	405	470
	250	330	350	350	319	26	12-φ22	480	540
	300	403	400	400	370	26	12-φ22	520	580
	350	430	460	460	429	26	16-φ22	570	630
	400	530	515	515	480	26	16-φ26	630	710
	450	580	565	565	530	28	20-φ26	690	770
	500	660	620	620	582	28	20-φ26	740	820
	600	840	725	725	682	34	20-φ30	840	940
	700	900	840	840	794	34	24-φ30	960	1040
	800	1000	950	950	901	36	24-φ33	1080	1180
	900	1100	1050	1050	1001	38	28-φ33	1190	1280
	1000	1200	1160	1160	1112	38	28-φ36	1310	1420
	1200	1300	1380	1380	1328	44	32-φ39	1420	1530
	1400	1500	1590	1590	1530	48	36-φ42	1540	1650
1.6MPa	100	229	180	180	156	22	8-φ18	330	380
	125	254	210	210	184	22	8-φ18	345	405
	150	267	240	240	211	24	8-φ22	370	440
	200	292	295	295	266	24	12-φ22	405	470
	250	330	355	355	319	26	12-φ26	480	540
	300	403	410	410	370	28	12-φ26	520	580
	350	430	470	470	429	30	16-φ26	570	630
	400	530	525	525	480	32	16-φ30	630	710
	450	580	650	585	548	40	20-φ30	690	770
	500	660	770	650	609	44	20-φ33	740	820
	600	840	840	770	720	54	20-φ36	840	940
	700	900	950	840	794	40	24-φ36	960	1040
	800	1000	1050	950	901	42	24-φ39	1080	1180
	900	1100	1125	1050	1001	44	28-φ39	1190	1280
	1000	1200	1255	1170	1112	46	28-φ42	1310	1420
	1200	1300	1485	1390	1328	52	32-φ48	1420	1530
	1400	1500	1590	1590	1530	58	36-φ48	1540	1650