General Description The model FKB VGU-01 is developed in accordance with MSS-SP 81 Standard and its function is blocking the fluid sewage. They are light equipments for semi-lug body and flange installation, making it easier and giving a better distribution of the tightness. With a perimetral sealing system through elastomer, this model ensures 100% tightness in both sides, full bore to the piping with no accumulation point, zero loss load, excellent performance, durability and avoids the direct contact between the fluid and the body, preserving its structure and performing maintenance without changing it. General Application Liquids Pasta Paste Similar Key Features and Benefits Light and compact equipment; Wafer and Semi-Lug body, allows easy and quick installation; Monobloc body avoids gaskets of bipartite bodies, possible leakage location; Full bore and without cavity, which eliminates turbulence, pressure drop and possible accumulation of solids in the valve and / or pipe; Coated Passage with Stainless Steel ring, which eliminates contact of the fluid with the valve body and preserves it. Even in Carbon Steel or Cast Steel bodies, the coating of the passage is made of Stainless Steel; Possible to be developed with Triangular, V-Port or Pentagonal passages, for a better flow control; 100% tightness in both directions; Zero leakage to the environment, even in intermediate running position; Attends Bi-directional flow, no matter what side installation; Perimeter seat protected from direct contact with the fluid; Auto Knife Lubrication System, eliminating the need for maintenance and frequent lubrication of the knife; Manual Operation valves has Torque Relief System, through axial bearings; Can be used with Fixed or Rising Stem (FKB stock is 100% Fixed Stem); Can be installed in the end of the process line. The threaded holes allow use of only one fixation flange. 1
Constructive Description Standard Construction MSS-SP81, last revision Standard of Tightness ISO 5208, last revision Face-to-face Wafer (Compact) and Semi-Lug Body Designed in one-piece of cast iron or steel, which contributes to offer a lower weight and easy handling. One-piece body eliminates the gasket sealing used in bipartite bodies, and enables leakage. Covered Passage Ring built in Stainless Steel, which eliminates and protects the direct contact of the fluid along the Perimeter seat and one-piece body with the fluid in order to ensure full preservation of the body and long life of the seat. In case of wearing of the rings, these are interchangeable and easily replaceable, not requiring valve disassembly. Types of Passage for Regulation Gate Built on flat steel plate, designed in 4 minimum factor of safety as the tension (pull) and 2 as the minimum factor of compressive and shear force. Perimetral Sealing System Made of Elastomer, it is inserted into the one-piece body, allows full flowing with no accumulation point and possible obstruction of the passage, reducing maximum Loss of Charge, Turbulence and consequently ensures longer life to sealing rings and body. 2
Note: - When necessary DN 6 to 10" can also be manufactured with a gear reducer, but must be requested at the budget stage; - It is not suggested manual override for valves larger than 24", it will require many laps in the handwheel and the time for complete operation of the valve will be too long, thus increasing the knife display, process / fluid speed and possible wear on hoses and / or knife. Strong and Reforced Pneumatic Actuator: Designed and developed to operate with, at least, 4bar of working pressure. Strong and Reforced Hydraulic Oil Actuator: Designed and developed to operate with, at least, 100bar of working pressure. Electric Actuator: Designed and developed to operate, at least, 150% of minimum necessary torque to operate the valve under maximum pressure. Note: Other Actuators upon request Working Pressure DN (Ø) CWP (Working Pressure) 2 to 6 8 10 to 16 18 to 32 50mm to 150mm 200mm 250mm to 400mm 450mm to 800mm 10 bar 8 bar 6 bar 4 bar 150 psi 110 psi 85 psi 55 psi 100 mca 80 mca 60 mca 40 mca -CWP: Maximum working pressure body from 0ºC to 70 C - Hydrostatic test according ISO 5208; - Hydrostatic sealing test with Opened and Closed Valve: 1,1 x CWP; - Other sizes or pressure upon request. 3
Material ITEM DESCRIPTION MATERIAL 1 Body A536, WCB, CF8, CF8M, CF3, CF3M, Duplex, Super Duplex, Titanium and others 2 Covering Ring UHMW or High Performance Urethan 3 Preme Gasket 4 Gate A536, WCB, CF8, CF8M, CF3, CF3M, Duplex, Super Duplex, Titanium and others AISI 316L, AISI 317L, 17-4 PH, Hatelloy, Alloy, Titanium and others 5 Perimetral Sealing Natural Rubber, EPDM and others 6 Superior Sealing Synthetic fiber with PTFE, Pure PTFE, Graphite and others 7 Reforced support of actuation Carbon steel, ASTM SAE 1020 8 Fork Stainless Steel, ASTM A351 CF8 9 Stem AISI 304, AISI 316 and others 10 Internal Stem Protection Ribbed Rubber or canvas protection 11 External Stem Protection Carbon Steel, SAE 1020 12 Handwheel Aluminium, SAE 323 13 Stem Nut Brass or Bronze resistant to corrosion 14 Prisoners Carbon Steel or Stainless Steel Other materials upon request 4
Flange Drilling ANSI B16.5 150 Lbs DIN PN10 (NBR 7675 PN10) 5
Installation All equipments provided by FKB are accompanied by an Installation, Operation and Maintenance manual. In case of doubt, please contact us. Main Dimensions Note: - Measures subject to change without notice. - Other gauges upon request; - Dimensional Drawings and Detailed material list are presented after receipt of the Purchase Order. 6