Q941f electric three-way flange ball valve pn16-pn40 is composed of yxr / Q series intelligent actuator and three-way ball valve. It is a kind of rotary cut-off regulating valve with the advantages of tight closing, compact structure, light weight and convenient maintenance. It is widely used in pipeline automation control of gas, liquid, steam, oil and other corrosive media.

The valve seat is compact and has good sealing performance. It can switch the flow direction of medium in the pipeline. It can also make two mutually perpendicular channels connected or closed.

The four seat sealing three-way ball valve has beautiful appearance and compact and reasonable structure. It can not only realize the switching of medium flow direction, but also connect the three channels. At present, it can also close any channel to connect the other two channels, so as to flexibly control the convergence or diversion of medium in the pipeline.

 

The three-way ball valve is divided into L-type and T-type, and the medium flow direction is shown in the figure below. L-type three-way ball valve is suitable for medium flow direction switching, which can connect two mutually perpendicular channels. T-type three-way ball valve is suitable for medium diversion, confluence or flow direction switching. T-type hole can make three channels connected with each other or two of them. Three way ball valve generally adopts two seat structure, or four seat structure according to user requirements.

Electric actuator type: PSQ, 3810R, DTR angle travel actuator can be selected. The explosion-proof type is 3810 series.
Technical parameters and performance: please refer to the instructions of corresponding actuator and valve positioner.
Control accuracy: 0.1% ～ 3.1% adjustable.
Receive control signal: 0 ~ 10 mA.DC 、 4～20 mA.DC Or 1-5v.dcv key selection: 1. When the input signal is interrupted: "interrupt" mode (on, off, off) 2. Forward and reverse action selection; 3. Control precision selection.
Electric device full open, full closed position automatic positioning calibration, convenient and accurate.
According to the input signal and the position of the electric device, the intelligent step adjustment and automatic positioning are carried out, and the oscillation suppression precision is high.
Output electric device position signal: 4 ~ 20 mA.DC The corresponding electric device is fully closed and fully open.

Performance Specification for q941f electric three way flange ball valve PN16 ～ PN40

Nominal pressure PN	Room temperature working pressure	housing Test pressure	Airtight seal Test pressure	High pressure seal Test pressure
1．6	1．6	2．4	0．6	1．76
2．5	2．5	3．8	0．6	2．75
4．0	4．0	6．0	0．6	4．4
C1aSSl50	2．0	3．0	0．6	2．2

 

Material of main parts of q941f electric three way flange ball valve PN16 ～ PN40

Body cover	GB	WCB		ZGlCrl8Ni9Ti		ZGOCfl8Nil2M02Ti
	ASTM	WCB		CF8		CF8M
sphere	GB	2Cfl3		1Cfl8Ni9Ti		0Cfl8Ni12M02Ti
	ASTM	420		304		316
Stem	GB	2Crl3		1Crl8Ni9Ti		0Crl8Ni12M02Ti
	ASTM	420		304		316
Seat sealing surface	GB	teflon	Para polyphenylene	teflon	Para polyphenylene	teflon	Para polyphenylene
	ASTM	teflon	Para polyphenylene	teflon	Para polyphenylene	teflon	Para polyphenylene
filler	GB	teflon	Flexible graphite	teflon	Flexible graphite	teflon	Flexible graphite
	ASTM	teflon	Flexible graphite	teflon	Flexible graphite	teflon	Flexible graphite
Bolt	GB	35		0Crl8Ni9		0Crl8Ni9
	ASTM	A193B7		A320-B8		A320-B8
Nut	GB	45		0Cfl8Ni9		0Crl8Ni9
	ASTM	A1942H		A194-8		A194-8

 

Q941f electric three-way flange ball valve PN16 ～ PN40 main dimensions（mm)

Nominal pressure Or pressure level	Nominal diameter		size（mm）
	mm	in	L	L1	D	D1	D2	b	z-Φd
PN1.6MPa	15		130	65	95	65	45	14	4-14
	20		150	75	105	75	55/58	14/16	4-14
	25		160	80	115	85	65/68	14/16	4-14
	32		180	90	135/140	100	78	16	4-18
	40		200	100	145/150	110	85/88	16	4-18
	50		230	115	160/165	125	100/102	16/18	4-18
	65		290	145	180/185	145	120/122	18	4-18
	80		310	155	195/200	160	135/138	20	4-18
	100		350	175	215/220	180	155/158	20	4-18
	125		400	200	245/250	210	185/188	22	4-18
	150		480	240	280/285	240	210/212	24/22	8-23/8-22
PN2.5MPa	15		130	65	95	65	45	16	4-14
	20		150	75	105	75	55/58	16	4-14
	25		160	80	115	85	65/68	16	4-14
	32		180	90	135/140	100	78	18	4-18
	40		200	100	145/150	110	85/88	18	4-18
	50		230	115	160/165	125	100/102	20	4-18
	65		290	145	180/185	145	120/122	22	8-18
	80		310	155	195/200	160	135/138	22/24	8-18
	100		350	175	230/235	190	160/162	24	8-23/8-22
	125		400	200	270	220	188	28/26	8-25/8-26
	150		480	240	300	250	218	30/28	8-25/8-26
PN4.0MPa	15		130	65	95	65	45	16	4-14
	20		150	75	105	75	55/58	16	4-14
	25		160	80	115	85	65/68	16	4-14
	32		180	90	135/140	100	78	18	4-18
	40		200	100	145/150	110	85/88	18	4-18
	50		230	115	160/165	125	100/102	20	4-18
	65		290	145	180/185	145	120/122	22	8-18
	80		310	155	195/200	160	135/138	22	8-18
	100		350	175	230/235	190	160/162	24	8-23/8-22
	125		400	200	270	220	188	28	8-25/8-26
	150		480	240	300	250	218	30	8-25/8-26

Note: 1. If expressed by fraction, the numerator is JB / t74-90 Series 2 size (equivalent to the size of the original machine standard jb74-90-59), and the denominator is JB / t74-90 Series 1, gb9112-9131 (pn1.6, 2.5, 4.0Mpa) and hgj44-76. 2. In the table, the numerator is ANSI B16.5, and the denominator is gb9112-9131 and sh3406.

 

1. Be careful in installation and construction, and do not hit the valve.
2. Before installation, the ball valve should be inspected to check the specification and model, and identify whether there is damage, especially for the valve stem. Turn it a few times to see if it is skewed, because Zui is prone to bump the stem during transportation. Also remove the debris in the valve.
3. When lifting the ball valve, the rope should not be tied to the hand wheel or the valve stem to avoid damage to these parts, but should be tied to the valve body.
4. The pipeline connected to the ball valve must be cleaned. Compressed air can be used to blow away iron oxide chips, mud and sand, welding slag and other impurities. These debris, not only easy to scratch the sealing surface of the ball valve, in which large particles of debris (such as welding slag), but also block the small valve, so that its failure.
5. The position of valve handle rotation should be reserved during installation. 6. The ball valve cannot be used as throttling. 7. The ball valve with transmission mechanism shall be installed vertically.