The Lug Series High Performance Butterfly Valves delivers bubble-tight shut-off performance at high pressures while offering industry professionals an economical solution. The valve features an eccentric disc and offset shaft which supports a flexible-lip sealing system inside a lightweight compact body. The combination of exceptional performance and durability and simple operation makes this valve stand out from other market options.
Advanced Design & Materials
The high performance valve features a single-piece stem design with ISO 5211 square drive which provides maximum control of the valve and superior torque transmission.
The valve body features an ISO 5211 direct mounting flange which enables straightforward actuator integration and shortens installation procedures.
The double offset disc design minimizes valve torque which results in smooth and efficient operation.
The extended neck design provides space for pipe insulation which protects the stem seal and extends the overall service life of the valve.
The use of RPTFE chevron rows in soft seat valves enables resilient sealing and improved resistance to wear and tear.
The graphite chevron with metallic seat provides superior sealing performance under high-temperature and high-pressure conditions.
Easy-adjust gland packing: The actuator can be mounted in place while still allowing for easy adjustment and minimizing downtime.
Belleville washers on the gland nut: The Belleville washers provide reliable primary sealing between the shaft and packing which results in tight shut-off and reduced maintenance.
Retaining ring: The retaining ring functions as both a stem blowout proof mechanism and maintains uniform packing pressure which improves sealing performance.
Pin-less shaft to disc connection: The connection design enables simple and dependable valve assembly and parts replacement operations in corrosive environments.
Seat retainer: The seat retainer functions as a support which enables simple seat replacement and decreases maintenance requirements.
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
The High Performance Butterfly Valve functions as a critical flow control device which operates with absolute precision and strength in high-pressure and high-temperature environments. These valves represent the highest level of valve manufacturing innovation because they combine durability with versatility to perform both on/off and throttling services in various industrial applications.
Can a high performance butterfly valve handle high pressures and temperatures?
High Performance Butterfly Valves serve as essential components for industries that need control systems which can withstand harsh pressure and temperature conditions. Our valves operate reliably across a broad range of demanding conditions through precision engineering which makes them the market-leading choice for severe service applications.
