High-Quality Butterfly Valve – China Supplier, Competitive Price Durable & Leak-Proof Design

• Customization: Available
• Media: Gas,Oil,Warer etc
• Driving Mode: Pneumatic
• Model NO.: DN50
• Connection Form: Wafer,Flange,Lug
• Structure: Three-Eccentric Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Standard: GB/T 26146
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Nominal Diameter: 2" to 50" (DN50 to DN1200)
• Nominal Pressure: ANSI Class 150lb to 600L
• Transport Package: Plywood Case
• Trademark: HW
• Origin: China
• HS Code: 8481804090
• Production Capacity: 5000, 0000
• Package Size: 25.00cm * 20.00cm * 15.00cm
• Package Gross Weight: 5.500kg

Product Description

Product Description

The butterfly valve is an advanced quarter-turn rotational motion control valve capable of functioning as both a regulating valve and an on/off valve. Our company's long-life, energy-efficient butterfly valve employs a triple-eccentric principle design, optimizing the spatial motion trajectory of sealing surfaces to eliminate sliding friction between the disc and seat during the initial opening/closing phases (0°~10°). This innovation ensures:
1.Instantaneous separation of sealing surfaces upon opening
2.Immediate sealing contact upon closing
3.Extended service life and reduced wear

Product Parameters

PN1.0MPa      PN1.6MPa      ANSI150LB

DN						,,
(mn)              wafer             Lug           Flanged      H1            H2                  L                       φP           B1               B                K          N                   S                 Q                   T
50	43	43	108	104	210	110	14	39	35	5	11	70	M10	/
65                  49                49                112            120              230                 110                14              39               35              5             11                  70                M10      /
80	49	49	114	122	255	110	16	39	35	5	13	80	M12	/
100                  56                56             127              136            240                 110                  20             39                35              6           16.5              80               M12      /
125	64	64	140	157	268	120	20	39	35	6	16.5	90	M12	/
150                70               70              140             170             280               120                  25              39              35                8              21                100            M12              32
200	71	71	152	200	330	140	30	49	40	10	25	100	M10	32
250                76               76              165             243             380                 140                 35               54             50             10          30                110             M12              40
300	83	83	178	268	436	185	40	64	60	12	35	130	M12	45
350                92              92              190            298             485                185                  45             64               60               14        39.5               134             M16              64
400	102	102	216	338	524	185	50	64	60	16	44	134	M16	64
450                114            114            222            367            670               225                 50              75             70              16            44               165             M20            70
500	127	127	229	402	658	235	55	75	70	16	49	190	M22	70
600                154             154            267            470            773                285                 70              85             80              20          62.5             215            M27              90
700	165	165	292	541	818	285	80	85	80	22	71	215	M30	90
800                190             190            318           565              905                310                 85              95               90             22          76                 230             M30              100
900	203	203	330	637	976	310	95	95	90	25	86	230	M36	100
1000              216             216            410             697           1038               310                  105            105            100             28          90                230             M36              100
1200	254	254	470	804	1163	352	115	105	100	32	104	300	M45	140

Our Advantages

Design Features
1.Self-lubricating Bearing:The valve body adopts a thin-walled design, offering an aesthetically pleasing and lightweight profile with compact dimensions, reduced weight, and material efficiency, making it more economical compared to valves of the same nominal size.
2.Valve Body:The outer surfaceis precision-ground via centerless grinding, minimizing friction coefficient with the packing and significantly lowering valve actuation torque.
3.Valve Stem:A triple-eccentric design ensures mechanical sealingindependent of pressure differentials, maintaining reliable sealing even under low-pressure conditions.
4.Valve Disc:Equipped with a movable sealing mechanism and O-ring pre-tightening, the sealing seat tightly adheres to the disc, enabling automatic compensationfor long-term wear and extending service life. Sealing seats are customizable based on applications: metal seals, PTFE (polytetrafluoroethylene), or EPDM(ethylene propylene diene monomer) options.
5.Sealing Ring:Features a multi-layered sealing structure for enhanced durability. Depending on operational requirements, metal hard seals or RTFE (reinforced PTFE) seats can be selected.

Key Features:

1. Metal Seal: Handles extreme temperatures and pressures.
2. Pneumatic Actuator: Provides fast and reliable operation.
3. Integrated Positioner: Ensures precise flow control for modulation.
4. Durable Materials: Available in carbon steel, stainless steel, or alloy steel.
5. Wide Applications: Suitable for steam, gas, and abrasive media.

Applications
Controls gases, solid particles, and liquids in demanding industrial environments. Widely adopted in chemical processing, petroleum, synthetic fiber production, power generation, metallurgy, pharmaceuticals, environmental protection, and paper manufacturing for automated systems.

FAQ

1) Q: Are you a manufacturer or trading company? 
A: Huawo Valve is a professional valve manufacturer with experienced R&D team

2) Q: What kinds of valve can you supply?
 A: We can supply butterfly valve, ball valve, check valve ,Knife gate valve etc.

3)Q: What's the delivery time?
A: If all the parts of the valve are ready in stock, the valves can be delivered within 7~10 days. 

4)Q: What are the countries or regions you supply valves? 
A: Huawo valves have been supplied to USA, Europe, Australia, Singapore, South Africa etc.