Q941FThe electric flange regulating ball valve PN16 ~ PN40 is suitable for two position adjustment and cut-off. The valve is directly connected to the actuator. The electric actuator has a built-in servo system, and there is no need to install a servo amplifier. The operation can be controlled by inputting 4-20mA signal and 220VAC power supply. It has the advantages of simple connection, compact structure, small size, light weight, small resistance, stable and reliable action. The actuator can be equipped with UNIC, PSQ, HQ, DHL and other types of electronic electric actuator according to user requirements.

Q941FMain technical parameters of electric flange regulating ball valve PN16 ～ PN40

Test pressure （Mpa）	Nominal pressure（Mpa）					Pressure level（class）			JIS(Mpa)
	1.6	2.5	4.0	6.4	10.0	150	300	600	10K	20K
strength test	2.4	3.8	6.0	9.6	15.0	3.1	7.8	15.3	2.4	3.8
Sealing test	1.8	2.8	4.4	7.0	11.0	2.2	5.6	11.2	1.5	2.8
Air tightness test	0.5～0.7

Control accuracy: 0.1% - 3.0% (adjustable through U4 parameters)
Feedback signal of accessible electric actuator: potentiometer 500 Ω - 10K Ω
Can receive external control signal (DC): 4-20mA (1-5V, 0-10V, switch value, etc. customized before delivery)
Input impedance: 250 Ω;
By modifying U1 parameter, it can be set as follows: ① dRTA / forward action, rvsa / reverse action mode; ② when input signal is interrupted, "interrupt" mode - open, stop, shut
Optional: ① thyristor output (AC, 600V, 25a); ② relay output (AC, 250V, 10a) 〕 specify when ordering
Output actuator position signal: low drift output 4-20madc corresponding to actuator fully closed to fully open, signal completely isolated from input (photoelectric isolation), output load ≤ 500 Ω
Ambient temperature: 0-70 ℃, humidity: 35-85%
With over temperature protection function: when the temperature in the positioner shell is higher than or equal to 70 ℃, the positioner will stop the opening and closing control of the actuator
The action range of the actuator corresponding to the input signal can be freely calibrated by pressing the key (generally, it is calibrated as the fully closed and fully open position of the electric actuator)

Q941FMain parts and components materials of electric flange regulating ball valve PN16 ～ PN40

Part name	Material Science
valve body	WCB	ZG1Cr18Ni9Ti	CF8 (304)	CF3 (304L)	ZG1Cr18Ni12Mo2Ti	CF8M(316)	CF3M (316L)
Ball, stem	2Cr13	1Cr18Ni9Ti	0Cr19Ni9 (304)	00Cr19Ni11 (304L)	1Cr18Ni12Mo2Ti	0Cr17Ni12Mo2 (316)	00Cr17Ni12Mo2 (316L)
seal ring	Polytetrafluoroethylene (PTFE), reinforced polytetrafluoroethylene (PPL), para polyphenylene flexible graphite
	Water, gas, steam, oil, etc	Corrosive medium such as nitric acid		Strong oxidizing medium	Acetic acid and other corrosive media

1. Design and manufacture: gb12237-89, api608, API 6D, JPI 7s-48, BS5351, din3357.
2. Flange dimensions: JB / t74-90 (jb74-90), gb9112-9131, hgj44-76, sh3406, ANSI B16.5, JIS b2212-2214, NF e29-211, din2543.
3. Structural length: gb12221-89, ANSI B16.10, JIS B2002, NF e29-305, din3202.
4. Main test: JB / T 9092, API 598.

 

Q941FMain dimensions of electric flange regulating ball valve PN16 ～ PN40（mm)

Nominal pressureDN	L	D	H	L1	D1	b	Z-d1	H1
pressure	1.6/2.5/4.0	1.6/2.5/4.0			1.6/2.5/4.0	1.6/2.5/4.0	1.6/2.5/4.0
15	130/130/140	95	275	157	65	14/16/16	4-14	48
20	140/140/150	105	280	157	75	14/16/16	4-14	53
25	150/150/165	115	287	157	85	14/16/16	4-14	58
32	165/165/180	135	354	208	100	16/16/18	4-18	68
40	180/180/200	145	312	208	110	16/16/18	4-18	73
50	200/200/220	160	325	208	125	16/20/20	4-18	80
65	220/220/250	180	335	256	145	18/22/22	4-18/8-18/8-18	90
80	250/250/280	195	365	256	160	20/22/22	8-18	98
100	280/280/320	215/230/230	400	256	180/190/190	20/24/24	8-18/8-23/8-23	120
125	320/320/360	245/270/270	420	256	210/220/220	24/28/30	8-23/8-25/8-25	140
150	360/360/400	280/300/300	440	256	240/250/250	24/28/30	8-23/8-25/8-25	167
200	400/400/550	335/360/375	470	256	295/310/320	26/34/38	12-23/12-25/12-30	210
250	630 750	405 470	545	380
300	750 870	460 530	580	380

 

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.