Explosion Proof Electric V-shaped Flange Ball Valve_Meisonilan Valves (Suzhou) Co., Ltd.

1. The electric V-ball valve is powered by AC220V, AC380V, or DC24V power supply voltage, and accepts current or voltage signals (4-20mA, 0-10mA, or 1-5VDC) from DCS, PLC systems, regulating instruments, operators, etc. to control operation. It adopts RC, 381R, PSQ, or HQ electronic angular stroke electric actuators, with internal servo operation and opening signal position feedback, position indication, manual operation and other functions. The structure design of mechatronics integration is strong in function, reliable in performance, simple in wiring, precise in control, small in size, light in weight, small in current resistance, large in flow coefficient, simple in structure, and good in sealing performance.

2. Angular stroke electronic electric actuator is the driving device of V-shaped valve. It is powered by power supply voltage and receives a unified standard signal (4-20mA, 0-10mA or 1-5VDC), which is converted into displacement corresponding to the input signal, changing the rotation angle of the valve core (any angle from 0-90o). Therefore, a certain input signal corresponds to a certain angle, achieving proportional action. Two position switch type accepts power from AC220V or AC380V, and achieves switch action through motor forward and reverse rotation, while simultaneously outputting valve position indication signals.

Main performance and technical parameters of the actuator

Model	Output torque N.m	Action time S/90°	Power (W)	Model	Output torque N.m	Action time S/90°	Power (W)	Model	Output torque N.m	Action time S/90°	Power (W)
HL-5	50	10/30	10W/F	381RSA-02	20	8.5	50	PSQ51	50	23	24.2
HL-10	100	15/30	23W/F	381RSA-05	50	17	50	PSQ66	65	32	24.2
HL-20	200	10/15/30	40W/F	381RSB-10	100	18	150	PSQ76	75	60	25.3
HL-40	400	10/15/30	80W/F	381RSB-20	200	36	150	PSQ102	100	32	62.1
HL-50	500	10/15/30	90W/F	381RSC-30	300	24	220	PSQ202	200	28	93.0
HL-100	1000	50	100W/F	381RSC-50	500	42		PSQ502	500	43	120
HL-200	2000	100	100W/F	381RSC-60	600	48		PSQ702	700	43	120
				381RSD-100	1000	30	300	PSQ1202	1200	31/37	500
				381RSD-150	1500	38		PSQ2002	2000	93/112	500
				381RSD-200	2000	46
(Use shielded wire for signal line) Protection level: IP65. With crank manual operation. Power supply: AC220V/AC380V/DC24V				(Use shielded wire for signal line) Protection level: IP55. Explosion-proof mark: ExdⅡBT4. With crank manual operation. The performance of the explosion-proof (381RX) type is the same as above. Power supply voltage: AC220V				(Use shielded wire for signal line) Protection level: IP65. With handwheel operation. Power supply voltage: AC220V

Main part materials and applicable temperature

Material code		C (WCB)	P (304)	R (316)
Main parts	Valve body	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
	Ball	2Cr13, (304)	0Cr18Ni9Ti	0Cr18Ni12Mo2Ti
	Valve stem	2Cr13	0Cr18Ni9Ti	0Cr18Ni12Mo2Ti
	Sealing ring	Reinforced polytetrafluoroethylene, para-polyphenylene, hard alloy steel
	Packing	Polytetrafluoroethylene, flexible graphite
Applicable working conditions	Applicable medium	Water, steam, oil products	Nitric acid and alkalis	Acetic acid
Applicable working conditions	Applicable temperature	-28°C - 500°C

Allowable pressure difference (MPa)

Nominal diameter	25	32	40	50	65	80	100	125	150	200	250	300
Air supply 0.5MPa	5.9	5.4	4.8	4.5	4.3	3.6	2.8	2.0	1.4	1.3	1.1	0.8

Product technical parameters and performance indicators

Nominal diameter D (mm)		25	32	40	50	65	80	100		125	150	200	250	300
Rated flow coefficient Cv		32	43	78	90	160	250	360		610	1120	1850	2950	3700
Nominal pressure PN (MPa)		1.6, 2.5, 4.0, 6.4
Flow characteristic		Approximately equal percentage (see typical curve diagram), linearity, quick-opening characteristic
Valve plate rotation angle (degrees)		0° - 90°
Allowable leakage level		Soft seal: Zero leakage. Hard seal: ≤10 - 5 rated flow coefficient
Actuator model		HL, 3810R, PSQ, HQ or QB type
Action form		On - off type, intelligent adjustment type, (Explosion - proof type)
Power supply voltage		AC220V 50Hz or AC380V 50Hz
Adjustment type	Input signal	0 - 10mA, 4 - 10mA, 1 - 5VDC
	Output signal	0 - 10mA, 4 - 10mA, 1 - 5VDC
	Basic error	≤±1.5%
	Hysteresis	≤1.5%
	Dead zone	≤0.3%
	Adjustable ratio	250:1							300:1
On - off type	Power supply voltage	AC220V/AC380V/AC110V
	Feedback signal	Active contact signal, passive contact signal (optional)

Installation dimension table of pneumatic V - type ball valve

Nominal diameter	Dimensions (mm)
	Wafer type			Flanged type
	D	L	L1	D	D1	D2	L	Z - D
25	64	50	25	115	85	65	102	4 - 14
40	82	60	25	135	110	85	114	4 - 18
50	100	75	32	145	125	100	124	4 - 18
65	120	85	38	160	145	120	145	4 - 18
80	131	100	45	180	160	135	165	8 - 18
100	158	115	50	195	180	155	194	8 - 18
125	180	135	55	215	210	185	213	8 - 18
150	216	160	65	245	240	210	229	8 - 23
200	268	200	80	280	295	265	243	12 - 23

Valve Installation:
(1) Before installation, check that the product model, tag number, and specifications match the requirements. Inspect the entire valve for missing or loose parts.
(2) Prior to installation, clean the pipeline. Ensure there is sufficient straight pipe section at the valve inlet and install a filter. When connecting the valve body to the pipeline flanges, ensure coaxiality.
(3) Thoroughly clean the pipeline before installing the valve.
(4) The installation site should ensure the safety of personnel and equipment, facilitating operation, disassembly, and maintenance.
(5) The valve should be installed vertically upright on horizontal pipelines. If necessary, it can be installed at an angle, but horizontal installation should be avoided. For occasions with heavy valve weight or vibration, use a support frame.
(6) The medium flow direction must align with the arrow on the valve body. The air supply should be dry and oil-free. The valve should be used in environments with temperatures ranging from -20℃ to 55℃.

Valve Maintenance:
(1) Cleaning the Valve: For general media, cleaning with water is sufficient. For media harmful to health, first understand their properties and then select an appropriate cleaning method.
(2) Disassembly: Remove rust from exposed rusted parts first. Before derusting, protect the machined surfaces of precision parts such as the valve seat, valve plug, valve stem, and push rod. Use special tools when disassembling the valve seat.
(3) Valve Seat: Minor rust or wear on the sealing surface can be repaired by machining. If damage is severe, replace the seat. However, both repaired and replaced hard sealing surfaces must be lapped.
(4) Valve Stem: If the surface is damaged, it must be replaced.
(5) Damage to Push Rod, Guide, and Sealing Surfaces: Reverse-acting actuators must be replaced; direct-acting actuators can be reused after proper repair.
(6) Compression Spring: If there are cracks or other defects affecting strength, replace it immediately.
(7) Wear Parts: Packing, gaskets, and O-rings must be replaced entirely during each maintenance. Check the valve plug and diaphragm for cracks, aging, or corrosion that may cause future failures. Decide whether to replace them based on inspection results, but the diaphragm service life should not exceed 2-3 years.
(8) When reassembling the valve, ensure alignment. Tighten bolts diagonally and lubricate sliding parts. After reassembly, debug the valve according to the factory test items and methods. During this period, accurately adjust the packing compression force and the valve plug closing position.

When placing an order, please fill in the Specification Sheet or specify the following information:

If the model has not been selected before ordering, please provide us with the operating parameters:
(1) Nominal diameter DN (mm);
(2) Nominal pressure (MPa or bar);
(3) Fluid properties (including medium temperature, viscosity, or acidity/alkalinity);
(4) Pressure before and after the valve (pressure differential);
(5) Requirements for flow characteristics;
(6) Materials of valve body and valve core;
(7) Connection type;
(8) Driving method (provide air supply pressure, driving voltage);
(9) Supporting accessories (for pneumatic valves, it is recommended that users install an air filter triplet and a 2-position 5-way solenoid valve);
(10) On-site working conditions.
If the product model of our company has been selected by the design unit, please order directly from our production department according to the model;
When the application occasion is very important or the pipeline is relatively complex, please provide the design drawings and detailed parameters as much as possible, and our experts will review and check them for you.