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China Lug Butterfly Valve with Handle - High-Quality Suppliers from Factory, Size Range 2 to 24
Product Details
Lug butterfly valve is suitable for applications where the valve needs to be installed between two flanges. The valve is designed with lugs that allow it to be bolted onto the flanges, providing a secure connection. The another type — wafer butterfly valve is suitable for applications where the valve needs to be installed between two pipes. The valve is designed with a wafer that allows it to be sandwiched between the pipes, providing a tight seal.
In several common connection ways of butterfly valves, the price of wafer type is the cheapest, followed by lug type butterfly valve, flange type butterfly valve is the most expensive, the price is proportional to the overall weight. Contact Fluido to learn more about lug butterfly valve with handle and its applications.
The dimensions of the Lug butterfly valve with handle are described in the table below.
Key Features
🔒
Anti-Blow Out Stem
🔄
Bi-Directional
🔥
Fire Safe Design
⚙️
Low Friction Body Seat
Standard Test
- 💧 Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
- 🪑 Seat Test: 1.1 times the working pressure with water.
- 🔧 Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
- 📋 Special Test: On request, any other test can be carried out according to special instruction by client.
Specification
Parts & Materials
| No. | Part Name | Material |
|---|---|---|
| 1 | Body | SS316 / SS304 |
| 2 | Hex Nut | SS304 |
| 3 | Gasket | SS304 |
| 4 | Seat | PTFE |
| 5 | Ball | SS316 / SS304 |
| 6 | Stem | SS316 / SS304 |
| 7 | Stem Gasket | PTFE |
| 8 | Packing | PTFE |
| 9 | Gland | SS304 |
| 10 | Handle | SS201 |
| 11 | Spring Washer | SS304 |
| 12 | Nut | SS304 |
Dimensions (DIN / ASME)
| SIZE | HA | HB | HC | L | Φ A | DIN PN16 | ASME B16.1 | |||
|---|---|---|---|---|---|---|---|---|---|---|
| DN | INCH | Φ C | n - M | Φ C | n - M | |||||
| 50 | 2" | 66 | 130 | 30 | 43 | 12.7 | 125 | 4-M16 | 129.5 | 4-5/8" |
| 65 | 2-1/2" | 75 | 140 | 30 | 46 | 12.7 | 145 | 4-M16 | 139.5 | 4-5/8" |
| 80 | 3" | 95 | 150 | 30 | 46 | 12.7 | 160 | 8-M16 | 152.5 | 4-5/8" |
| 100 | 4" | 108 | 170 | 30 | 52 | 15.8 | 180 | 8-M16 | 190.5 | 8-5/8" |
| 125 | 5" | 120 | 185 | 30 | 56 | 19.1 | 210 | 8-M16 | 216.0 | 8-3/4" |
| 150 | 6" | 134 | 205 | 30 | 56 | 19.1 | 240 | 8-M20 | 241.5 | 8-3/4" |
| 200 | 8" | 168 | 235 | 36 | 60 | 22.2 | 295 | 12-M20 | 298.5 | 8-3/4" |
| 250 | 10" | 200 | 270 | 36 | 68 | 28.6 | 355 | 12-M24 | 362.0 | 12-7/8" |
| 300 | 12" | 237 | 305 | 36 | 78 | 31.8 | 410 | 12-M24 | 432.0 | 12-7/8" |
| 350 | 14" | 262 | 330 | 36 | 78 | 31.8 | 470 | 16-M24 | 476.0 | 12-1" |
| 400 | 16" | 300 | 360 | 51 | 102 | 33.3 | 525 | 16-M27 | 539.5 | 16-1" |
| 450 | 18" | 350 | 395 | 51 | 114 | 38.0 | 585 | 20-M27 | 578.0 | 16-1-1/8" |
| 500 | 20" | 375 | 440 | 64 | 127 | 41.2 | 650 | 20-M30 | 635.0 | 20-1-1/8" |
| 600 | 24" | 435 | 500 | 71 | 154 | 50.7 | 770 | 20-M33 | 749.5 | 20-1-1/4" |
* All dimensions are in mm unless otherwise specified.
* DIN bolting dimensions are in conformance to EN1092-1.
Frequently Asked Questions
❓
What is the difference between a lug butterfly valve and a wafer butterfly valve?
A lug butterfly valve features threaded inserts (lugs) that allow it to be bolted directly onto flanges from both sides, making it suitable for dead-end service. A wafer butterfly valve is sandwiched between two pipe flanges using through-bolts, making it a lighter and more economical option but not suitable for dead-end service without additional support.
❓
What materials are available for the lug butterfly valve body?
The valve body is available in SS316 and SS304 stainless steel. Seat and packing components use PTFE for excellent chemical resistance and low friction, while the handle is made from SS201 stainless steel for durability and corrosion resistance.
❓
What pressure standards does the lug butterfly valve comply with?
The valve is available in both DIN PN16 and ASME B16.1 flange standards. The body hydro test is conducted at 1.5 times the working pressure, and the seat test is conducted at 1.1 times the working pressure, ensuring reliable performance under rated conditions.
❓
What size range is available for the lug butterfly valve with handle?
The lug butterfly valve with handle is available in sizes from DN50 (2") up to DN600 (24"), covering a wide range of industrial pipeline applications. Please refer to the dimensions table above for detailed size and bolt-circle specifications.
❓
Is the lug butterfly valve fire safe?
Yes. The lug butterfly valve incorporates a Fire Safe Design as one of its key features. This means the valve is engineered to maintain a reliable seal even in the event of fire, preventing leakage of hazardous media and enhancing overall pipeline safety.
❓
Can the lug butterfly valve be used with pneumatic or gear actuators?
Yes. In addition to the standard handle operation, the lug butterfly valve can be paired with various actuators including Flow-Control Levers, Gear Operators, and Pneumatic Actuators. Each actuator assembly undergoes a complete open/close functional test during final inspection, and accessories such as solenoid valves, limit switches, and air filter regulators are fully supported.
Product Packaging
01020304