Outside diameter is recessed within a gasket sealing surface to prevent external leakage. Costs can increase considerably to achieve higher SIL levels. Stocking in Sizes 2" through 36". The Fisher 8590 high performance Butterfly valve maintains tight shutoff and can be specified for a wide range of pressure and temperature conditions. It is low maintenance and offers an extended valve life. High-Performance Butterfly. Reliable sealing even with extreme temperature and pressure conditions.
Disc Material: Stainless Steel, Duplex Steel, Nickel Aluminum Bronze, Monel, Hastelloy, Titanium alloys. Website by PS Website Design. Available in Sizes 2" through 72". Triple Offset Butterfly valves have the following but not limited to advantages in this application; - Cost effective. Butterfly valves can be bi-directional but often have a preferred flow direction. This is to protect the valve stem from degradation and possibly failing the valve system. Value Valve is one of the few companies that has been certified with the Safety Integrity Level 3 according to IEC 61508-1 and ISO 9001 by TUV for the VF-9 series. Temperature Range: -21℉~932℉ (-29℃~500℃). To EN 558 Series 25, 92mm Subject to change without notOpen the catalog to page 2. ISO 5208, Category 3. SIL 1||100 to 10||10-2 to 10-1|. High Performance Triple Offset Metal Seated Butterfly Valve. A gear operator is a type of mechanical actuator used to operate a butterfly valve. FEIDA high performance butterfly valve is an innovative double offset design product with advanced world leading technology.
A splined shaft can combine with a variety of spring-and-diaphragm or pneumatic piston actuators and a square or keyed shaft can combine with a variety of handlevers, handwheels, or pneumatic piston diaphragm actuators. Pressure Equipment Directive. FEIDA stainless high performance butterfly valve is extremely durable with innovative double offset design and could meet one million operations. 196°C to +600°C (MOC Dependant). Value Valve created a new unique design for a Double Offset Butterfly Valve by improving the materials as well as the mounting structure. HP 150# 2in~8in W-L. - HP 150# 10in~16in W-L. - HP 150# 18in~24in W-L. - HP 150# 26in~36in W-L. - HP 150# 38in~48in W-L. - HP 300# 2in~6in W-L. - HP 300# 8in~24in W-L. - HP 600# 3in~4in W-L, Flanged. The triple offset high performance butterfly valve, has three offsets from the centre. Fire safe: API 607 Certified. Double Flanged Butterfly Valves. Commodity name: HC276 Double Flange Resilient Seated Double Offset High Performance Butterfly Valve. Other flange connection please contact BVC.
Bröer GmbH catalogs and technical brochures. SS304 / SS316 / SS316L / Inconel / Titanium. This type of valve can be especially helpful if your operations involve higher pressures and particulate fluids. Selecting the appropriate SIL level must be done carefully. Additional PTFE seal ring for added through-body leak protection.
40mm (1 1/2) to 1200mm (48"). The most common seat material is polytetrafluoroethylene (PTFE) or reinforced PTFE (RTFE) because of the wider range of compatibility and temperature range. High performance butterfly valve vs butterfly valve. Through this geometry, the circumferential seal is moved away from the seat and thus the strain on it is relieved when the valve opens. Our ABZ™ line of double-offset butterfly valves includes the Elite 400 and ABZolute High-Performance series. Valve Inspection and Testing. The butterfly valve in its simplest form has been in existence since the 1900s and is one of the most widely used valves today, providing several advantages over other valve types such as: Butterfly Valves were first designed as concentric valves, where the shaft and disc are aligned with the centre of the bore.
These can be used for dead end service. Flange connection: ASME B16. Double-Flanged Butterfly Valves have two flanges, one at either end of the body, which is used to bolt the valve to the pipeline flanges. 2½ " – 14" Pipe Flanged and Flanged Fittings. Pressure ratings: ANSI Class 150, 300, 600; PN16, PN25, PN40, PN100. Double flanged high performance butterfly valve parts. Sulphide Stress Cracking Resistant Metallic Material for Oilfield Equipment. ISO 5211 for Direct Mount Capability. Fire-safe designs are offered that provide the shutoff of a polymer seat valve before a fire, and the metal seal backup provides shutoff during and after a fire.
How is it made/Manufacturing of Double-Flanged Butterfly Valves. A Double-flanged butterfly valve, as the name implicates, has flanges welded to its body - one at the upstream end of the valve and the other at the downstream end of the valve. Gland flange preventing uneven load distribution against packing. Austenitic/ Super Austenitic Stainless steels. Double flanged high performance butterfly valve flow animation. This allows the end user to use other actuators should their be a preference or replacing a damaged actuator with anyone's ISO-5211 actuator in an emergency. By using a double-offset design a PTFE seat and a fire-safe (metallic) seat may be used to achieve zero-leakage and a fire-safe design. Energy-efficient, double-offset flanged butterfly valve (resilient-seated) suitable for the highest….
The floating Seat Ring allows the Seat only to be in compression AFTER bolting in line. NOTE: Please leave your email, our professional person will contact you ASAP! PN10, PN16, PN25, PN40, PN63, PN100. This series meets the most stringent requirements in water treatment, water distribution, in power plants and dams. Due to their great variety of materials and coatings, VAG EKN® Butterfly Valves cover a wide range of applications. Shutoff Rating: Class VI, Bubble Tight. Sizes available: ANSI Class 150 2″-60″ (50-1500mm). With this design of valve when the disc in the valve pulls through a non-metallic, typically elastomeric liner which also acts as the seat or seal for the valve. All Rights Reserved. For the process industries, SIL 4 systems are so complex and costly that they are not economically beneficial to implement. Power / Co-Generation Plants Steel and Iron Works Commercial. PRODUCT DESCRIPTION.
The disc is constantly in contact with valve seat.