Electric UPVC butterfly valve_Meisonilan Valves (Suzhou) Co., Ltd.

Introduction
Technical Parameter
Ordering Instructions
FAQ

Introduction

1. Wide temperature range: -40 ℃~+95 ℃
2. Has excellent strength and toughness
3. Has excellent chemical corrosion resistance
4. The flame retardant performance is self extinguishing
5. Geothermal conductivity, approximately 1/200 of that of steel
6. The heavy ion content in the medium reaches the standard of ultrapure water
7. Health indicators meet the requirements of national health standards
8. The pipe wall is clean and smooth, with minimal frictional resistance and adhesion when transporting fluids
9. Lightweight, equivalent to 1/5 of steel pipes and 1/6 of copper pipes
10. Easy to install, can be connected using flanges, threads, and other methods
11. The excellent anti-aging and anti ultraviolet performance makes the normal service life much longer than that of other pipeline systems

Technical Parameter

Technical Parameters

Nominal Diameter	DN50~600mm
Connection Method	Wafer
Actuator Selection	ODL Compact Type, OHQ Explosion-proof Type
Control Method	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	UPVC (-10°C~+70°C), CPVC (-40°C~+95°C)
Medium Temperature	RPP (-14°C~+100°C), PVDF (-40°C~+140°C)
Ambient Temperature	Standard Type: -20°C~+80°C
Protection Level	IP65, IP67, IP68
Valve Body Material	UPVC, CPVC, RPP, PVDF
Sealing Material	Nitrile Rubber, Fluorine Rubber
Sealing Material	Ethylene Propylene Diene Monomer Rubber

Connection Dimensions

Nominal Diameter	D	Overall Dimensions (MM)										Working Pressure	Actuator Selection
		D1				D2	A	L	H1	H2	n-e
		D1	JIS	DIN	ANSI	D2	A	L	H1	H2	n-e
40	47	110	105	110	3.88	150	161	39	86	70	4-18	0.7	ODL-05	OHQ-05
50	56	125	120	125	4.75	160	161	40	88	70	4-18	0.7	ODL-05	OHQ-05
65	71	145	145	145	5.50	185	161	46	100	70	4-18	0.7	ODL-05	OHQ-05
80	85	160	160	160	6.00	195	161	46	105	85	8-18	0.7	ODL-05	OHQ-05
100	105	180	180	180	7.50	215	161	54	118	85	8-18	0.6	ODL-08	OHQ-08
125	131	210	210	210	8.50	250	161	70	163	93	8-18	0.5	ODL-08	OHQ-08
150	153	240	240	240	9.50	285	188	74	176	93	8-22	0.5	ODL-10	OHQ-10
200	204	295	290	295	11.75	340	188	87	210	93	8-22	0.4	ODL-15	OHQ-15
250	255	350	355	350	14.25	395	268	114	240	93	12-22	0.3	ODL-20	OHQ-20
300	307	400	400	400	17.00	445	268	114	270	93	12-22	0.3	ODL-30	OHQ-30
350	358	460	445	460	18.75	505	268	127	300	93	16-22	0.3	ODL-40	OHQ-50
400	389	515	510	515	21.25	580	268	140	350	108	16-22	0.3	ODL-60	OHQ-60
450	446	565	565	565	22.75	615	268	152	370	108	20-26	0.2	ODL-80	OHQ-80
500	494	620	620	620	25.00	670	268	152	400	108	20-26	0.2	ODL-100	OHQ-120
600	590	725	730	725	29.50	780	268	178	465	108	20-30	0.2	ODL-160	OHQ-150

Note: The above selection parameters are for reference only. Please refer to the actual situation.

Valve Installation & Maintenance

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.

Ordering Instructions

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.