Description
Design and Manufacture：API 609
Face to Face Dimension：API609,ISO5752,ASME B16.10
Flange Connection Dimension：ASME B16.5,ASME B16.47
Test and Inspection：API 598
Pressure Temperature Rating：API 609,ASME B16.34
Product Range
Body material:WCB 、WC6 、WC9 、CF8、 CF8M、 CF3、 CF3M 、CN7M、LC1
LC2、LC3、LCB、LCC、Monel、20# Alloys、4A、5A、C95800、C95500,
Nominal diameter:2″～120″（DN50~DN3000）
End Connection: Double Flange,Wafer,Lug,etc
Pressure range: Class150 ~ 600（PN16~PN100）
Working temperature:-46℃ ~ +550℃
Operation : Handle, Gear, Electric actuator, etc
Seal Structure,Soft Sealing,
Stopper Driver
ISO 5211 Mounting PAD
Connection,Flange,Wafer Lug-wafer
Operation,Type,Manual,Worm Gear,Electric,
Pneumatic,Hydraulic
Eccentric Structure,Centered
300LB Lug Type Butterfly Valve,8 Inch,API 609,Worm Gear
[1] Structure Introduction
Lug type butterfly valve, also known as branch type butterfly valve, adopts a triple eccentric structure in the American standard lug type butterfly valve. The valve seat is sealed with a metal multi-level hard sealing structure, usually a interlayer of metal and graphite, such as 304+graphite and 316+graphite. This hard seal can also be made into a single layer soft seal PTFE, RPTFE, PPL, EPDM, NBR and other triple eccentric butterfly valves. Features:
1. Short structural size, small volume, light weight, and operational aspects
Adopting a full axis mechanism, the butterfly plate has high strength and a large flow area
3. Unique triple eccentric design reduces seal friction loss and greatly extends service life
4. Metal hard sealing is resistant to high temperature, low temperature, high pressure, and has a wide range of applications
(II) Relevant standards for American standard butterfly valves
Design and Manufacturing: API 609
Structure length: API 609
Connecting flange: ASME B16.5
Inspection and pressure test: API 598
Any valve produced by our company is strictly pressurized according to the pressure testing standards. Only after passing the pressure testing can the zero leakage butterfly valve be allowed to leave the factory.
