Electric Clamp Regulating Butterfly Valve_Meisonilan Valves (Suzhou) Co., Ltd.

1. Electric butterfly valves are easy to open and close quickly, labor-saving, with low fluid resistance, and can be operated frequently.
2. Electric butterfly valves have a simple structure, small size, and light weight.
3. Electric butterfly valves can transport mud with minimal liquid accumulation at the pipeline outlet.
4. Electric butterfly valves can achieve good sealing under low pressure.
5. The electric butterfly valve has good regulating performance.

Technical Parameters

Nominal Diameter	DN50 - 400mm
Connection Method	Wafer
Actuator Selection	ODL Compact Type, OHQ Explosion-proof Type
Control Mode	On-off Type (Electric Open, Electric Close), Regulating Type, Intelligent Integrated Model
Nominal Pressure	PN1.0, 1.6, 2.5Mpa (Please specify if higher pressure is required)
Power Supply Voltage	AC220V, AC380V, DC24V (Please specify if special voltage is required)
Medium Temperature	Normal Temperature Type: -20°C ~ +200°C; Heat Dissipation Type: -40°C ~ +450°C
Ambient Temperature	Standard Type: -20°C ~ +80°C
Protection Level	IP65, IP67, IP68
Valve Body Material	Cast Iron (Q), Carbon Steel (C), Stainless Steel (304, 316, 316L)
Sealing Pair Material	Valve Seat: Nitrile, EPDM, Corrosion-resistant EPDM, Fluororubber, Polytetrafluoroethylene
Sealing Pair Material	Butterfly Plate: Ductile Iron Electroplated, Ductile Iron Nylon Coated, Aluminum Bronze, Stainless Steel

Main Connection Dimensions

Diameter	L	L1	L2	B	B1	B2	H2	D1	Actuator Selection
50	161	71.5	40	120.5	62	42.6	297	92	ODL-005	OHQ-005
65	161	71.5	40	120.5	62	45.6	310	106	ODL-005	OHQ-005
80	161	71.5	40	120.5	62	45.6	331	122	ODL-005	OHQ-005
100	188	71.5	40	120.5	62	51.6	348	150	ODL-008	OHQ-008
125	268	81	40	165	75	55.6	428	177	ODL-010	OHQ-010
150	268	117	40	268	119	55.6	447	204	ODL-020	OHQ-020
200	268	117	40	268	119	59.6	481	260	ODL-040	OHQ-050
250	268	117	40	268	119	67.6	520	314	ODL-060	OHQ-060
300	268	117	40	268	119	77.6	548	370	ODL-080	OHQ-080
350	268	117	40	268	119	79	583	422	ODL-100	OHQ-120
400	268	117	40	268	119	105	615	473	ODL-200	OHQ-200
450	268	117	40	268	119	112	819	526	ODL-300	OHQ-300
500	268	117	40	268	119	129	847	577	ODL-400	OHQ-400

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.