The Lug Series High Performance Butterfly Valves is designed to excel in high-pressure applications, providing a cost-effective solution for industry professionals requiring bubble-tight shut-off. Engineered with an eccentric disc and offset shaft, this valve incorporates a flexible-lip sealing system within a lightweight, compact body. The resulting superior performance, durability, and ease of operation set it apart from other valves in the market.
Advanced Design & Materials
The Lug Series valve boasts several key design features that contribute to enhanced performance and durability:
One-piece stem design with ISO 5211 square drive: Ensures optimal valve control and excellent torque transmission.
ISO 5211 direct mounting flange on the valve body: Allows for seamless actuator integration, simplifying actuator mounting and reducing installation time.
Double offset disc: Reduces valve torque, leading to smooth and efficient operation.
Extended neck for pipe insulation: Accommodates temperature fluctuations and protects the stem seal, extending the valve’s service life.
The valve’s construction uses high-quality materials to ensure strength, reliability, and longevity. These materials include:
Multiply rows of RPTFE chevron for soft seat valve: Provides resilient sealing and enhanced resistance to wear and tear.
Graphite chevron for fire safe and metallic seat: Ensures superior sealing performance, even under high-temperature, high-pressure conditions.
Easy Installation & Maintenance
The Lug Series valve incorporates numerous features that make it easy to install, maintain, and operate, saving both time and resources. Notable features include:
Easy-adjust gland packing: Accessible even with the actuator mounted in place, allowing for convenient adjustment and reduced downtime.
Belleville washers on the gland nut: Offer reliable primary sealing between shaft and packing, ensuring tight shut-off and reduced maintenance.
Retaining ring: Serves as both stem blowout proof and ensures even pressure on packing, enhancing sealing performance.
Pin-less shaft to disc connection: Makes valve assembly and parts replacement convenient and reliable, even in corrosive environments.
Seat retainer: Supports the seat, allowing for easy changeout, reducing maintenance efforts.
Compatibility & Efficiency
This Lug High Performance Butterfly Valve is designed with compatibility in mind, incorporating features such as:
ISO 5211 square drive and direct mounting flange: Facilitate easy pairing with pneumatic actuators, simplifying installation and ensuring compatibility with various actuator types.
Self-energized seat: Prolongs service life and minimizes maintenance requirements, increasing cost efficiency.
In summary, the Lug Series High Performance Butterfly Valve is an ideal choice for professionals seeking optimal performance in high-pressure applications, thanks to its advanced design, quality materials, ease of operation, and compatibility options. Offering numerous advantages over competing valves, this valve’s superior sealing capabilities, durability, and efficiency make it a smart investment for your industrial needs.
PARTS LIST AND MATERIAL SPECIFICATION
No.
Part name
Material
1
Body
WCB
CF8M
2
Disc
CF8*
CF8M*
3
Seat
RPTFE,SS316+RPTFE,SS316
4
Shaft
17-4 PHSS,1.4462
5
Packing gland
CF8
6
Bottom cover
Same as body
7
Cover seal
Graphite
8
Thrust washer
SS316
9
Seat retainer
WCB
CF8M
10
Gasket
RPTFE, Graphite
11
Retaining ring
SS304
12
Packing
RPTFE, Graphite
13
Packing ring
SS316
14
Bearing
SS316+PTFE
15
Thrust bearing
SS316
16
Key
SS316
17
Bolt
SS316
18
Bolt
SS304
19
Bolt
SS304
20
Nut
SS304
21
Belleville washer
SS304
*Supersonic spray welding of different materials on sealing surface of metal seating valve according to requirements
