First, product overview

Three-way ball valve generally adopts two seat structure, can also use four valve empty structure according to user requirements. Widely used in chemical, petrochemical, petroleum, paper, mining, electric power, liquefied gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment supporting, electronic industry, urban construction and other fields.


Pneumatic three-way ball valve L type Q644F and T type Q645F.


L-type three-way ball valve is suitable for switching the flow direction of the medium, so that the two channels are connected perpendicular to each other.


T - tee ball valve is suitable for medium shunt, confluence or flow direction switching. A T-channel can connect three channels to each other or two of them.

Second, pneumatic three-way ball valve characteristics

1 fluid resistance is small, full diameter ball valve basically no flow resistance.


2. Simple structure, small volume, light weight.


3. Tight and reliable. It has two sealing surface, and the sealing surface material of the ball valve is widely used in various plastics, good sealing, can achieve complete sealing. It has also been widely used in its air systems.


4. Easy to operate, open and close quickly, from fully open to fully closed as long as the rotation of 90 degrees, easy to remote control.


5. After convenient repair, ball valve structure is simple, sealing ring is generally active, disassembly and replacement are more convenient. 6. When fully open or fully closed, the sealing surface of the rotary body and the valve seat is high with the medium, and the medium will not cause the erosion of the sealing surface of the valve.


7. Wide range of application, small diameter to a few millimeters, large to a few meters, from high to high pressure can be applied. 8. Ball valves can be used in media with suspended solid particles because of their wipeability during opening and closing.

Part name	Material name
Valve body	WCB	304(CF8)	316(CF8M)	316L(CF3M)
sphere	2Cr13+Nitriding treatment	304	316	316L
Valve stem	2Cr13	304	316	316L
Sealing ring	Polytetrafluoroethylene (PTFE), reinforced polytetrafluoroethylene (PPL), para polystyrene, flexible graphite
Applicable medium	Water, gas, steam, oil, etc	Corrosive media such as nitric acid	Acetic acid and other corrosive media	Urea and other corrosive media

Third, the main connection size:

Nominal pressure PN	Nominal diameter DN	size(nrn)
		L	H	D	D1	D2	b	N*d
1.6MPa	15	150	75	95	65	46	12	4-Ф14
	20	160	80	105	75	56	14	4-Ф14
	25	180	90	115	85	65	14	4-Ф14
	32	200	100	140	100	76	16	4-Ф18
	40	220	110	150	110	84	16	4-Ф18
	50	240	120	165	125	99	17	4-Ф18
	65	260	130	185	145	118	18	8-Ф18
	80	280	140	200	160	132	18	8-Ф18
	100	320	160	220	180	156	20	8-Ф18
	125	380	190	250	210	184	20	8-Ф18
	150	440	220	285	240	211	22	8-Ф22
	200	580	290	340	295	265	24	12-Ф22
	250	670	335	405	355	320	26	12-Ф26
	300	760	380	460	410	375	29	12-Ф26