republic of malawi F2210 Series Triple-Offset Butterfly Valve

Design Standard: API609 Testing Standard: API598 Sizes: 3”-48” Pressure Rating: ANSI Class 150 – Class 600 Connecting Ends:Wafer / Lug / Double Flanges, Drilled To ANSI B16.5

Product Description

■  Unique Design

Triple-Offset, sealing surfaces no abrasion during opening and closing    
Low operating torques    
Shaft Blow-Out-Prevention design    
Seal ring made of Graphite + Stainless Steel, or solid stainless steel     
Fire-Proof for bi-direction    
Various trim for high temperature application    
Suitable for various clilic application, long service life    
Various operation avaliable:   Gear Box
                                                Electrical Actuator
                                                Pneumatic Actuator
                                                Hydro Actuator
 

■  Materials

1

 

PartsMaterials
BodyCasting Steel, ASTM A 216 Gr. WCB,Stainless Steel, ASTM A 351 Gr. CF8, CF8M
SeatStainless Steell, SS304, SS316,  Stellite
DiscCasting Steel, ASTM A 216 Gr. WCB,  Stainless Steel, ASTM A 351 Gr. CF8, CF8M
Seal RingMixed Graphite + SS Ring of SS304 / 316 or 316L, Solid SS304 / SS316
Retaining RingCasting Steel, ASTM A 216 Gr. WCB,  Stainless Steel, ASTM A 351 Gr. CF8, CF8M
Gasket GlandCasting Steel, ASTM A 216 Gr. WCB,  Stainless Steel, ASTM A 351 Gr. CF8, CF8M
Bottom CoverCarbon steel / Casting Steel, ASTM A 216 Gr. WCB,  Stainless Steel, ASTM A 351 Gr. CF8, CF8M
ShaftStainless Steel ASTM A276 SS420, ASTM A479 SS304/SS316, 630(17-4PH)
PinsStainless Steel ASTM A276 SS420, ASTM A479 SS304/SS316, 630(17-4PH)
BushingBronze,Stainless Steel SS304 / SS316 Nitrided
GasketGraphite, reinforced graphite, PTFE, reinforced PTFE
FastenerStainless Steel A2, A4

SS butterfly valves are widely used flow control devices designed for durability, efficiency, and versatility in modern pipeline systems. Manufactured from high-quality stainless steel, these valves provide excellent resistance to corrosion, chemicals, and high temperatures, making them suitable for demanding industrial environments. Their compact structure and lightweight design allow for easy installation and space-saving integration compared with traditional gate or globe valves.

The operating principle of SS butterfly valves is based on a rotating disc that regulates or isolates flow by turning within the valve body. This simple mechanism ensures fast operation and precise control, enabling quick opening and closing with minimal effort. SS butterfly valves are commonly applied in water treatment, food and beverage processing, chemical industries, oil and gas, and HVAC systems. With options such as manual, pneumatic, and electric actuation, they can be adapted to both automated and manual control requirements. Reliable sealing performance, low maintenance needs, and long service life make SS butterfly valves a cost-effective and dependable solution for efficient fluid control across a wide range of industrial applications