FKB INDÚSTRIA DE EQUIPAMENTOS LTDA. KNIFE GATE VALVE VGU-05 (Rev. 08/2015)

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1 General Description The FKB Knife-gate valves model VGU-05 brings cost-effective solution to block the flow of abrasive fluids. These are strong equipments to be installed between flanges, which has Wafer and Semi-Lug body, which provides easier installation and distribution of clamping between flanges. With Interchangeable Sleeves sealing system and through special elastomer, ensures excellent performance, durability and 100% tightness in both directions, on the open and close positions, no accumulation point and no contact of the fluid with the body. General Application Abrasive processes Mining Pulp Solids in general Abrasive liquids Similar Key Features and Benefits Can be applied in dry, wet and / or liquid fluid processes; Interchangeable quick and easy exchange seats without the need to disassemble the valve; Coated passage, eliminating contact of the process / fluid with the valve body; Robust and interchangeable hoses reinforced with steel core; Full bore passage without cavity, which eliminates turbulence, pressure drop and possible solid stop on the valve and / or pipe; 100% tightness in both directions; Complies with Bi-directional flow, no matter what side installation; Exchange the knife without removing the valve completely and / or take valve process line, only need partial disassembly of the drive system; Auto Lubrication knife system, eliminating the necessity of frequent maintenance and lubrication of the knife; Hoses manufactured with specially rubber developed to ensure greater durability, strength and performance due to abrasion; Inner rod and / or external protected by flexible rubber and protected by a protection tube, thereby eliminating damage in the case of aggressive environment. 1

2 Constructive Description Standard Construction MSS-SP81, last revision Body Designed in two-pieces of cast iron. Face-to-face Wafer (Compact) and Total-Lug (all the holes to be fixed through flanges) 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. Optional: Special FKB coating, which provides significant increase of hardness and resistance to abrasion. Passage Sealing (Robust and Interchangeable hoses) Constructed of Elastomer with steel insert to ensure their strength, are inserted into the body of the valve so that: Coats the passage of the valve, protecting the body of the abrasive fluid; Ensure 100% tightness in the closed and open position, whereas when the valve is in the open position, the hoses press against one another and when in the closed position, they press against the knife; Do not allow obstruction of passage, ensuring longer life to the fence and very low loss of flow and / or turbulence; Not requires seals for sealing between the valve and pipe flanges, as the hoses cover the face-to-face of the valve. Illustration of Open and Close Valve Operation CLOSED INTERMEDIATE OPENED FKB Natural Rubber: Very high resistance to abrasion, strain, tear strength and flexibility. Limitations: Low resistance to oil, grease, oils, acids and ozone. Maximum temperature 72 C. EPDM: Good abrasion resistance, stress, tear strength and flexibility. Limitations: Low resistance to most fluids based on mineral oil, hydrocarbons and greases. Maximum temperature 110 C. Viton: High resistance to work at high temperatures. Excellent resistance to chemical fluids, acids, hydrocarbons, steam and oils in general. Low tear resistance and oxygenated solvents. Maximum temperature 200 C. 2

3 Superior Sealing (Preme Gasket) Made of lubricated gasket, in order to assure non-leakage through the Preme and also lubricates the knife to increase the Sealing of the passage life cycle (Interchangeable sleeves). Guide and Scraper Made of metal has the function of guiding the knife so as to eliminate any possibility of misalignment, which would damage the hoses. Support Built by 4 (four) steel formed sheets and reinforced, which guarantee better support and eliminates the possibility of warpage of the castle and possible failure of the body in the fixation area. Stem Made of stainless steel and designed to support the operation of the valve under maximum pressure, then the level of slenderness is less than 200. Hand Starter: Stem is designed to transmit, at least, twice the manual engine output. Pneumatic, Hydraulic and Electrical: Stem is designed to transmit, at least, 1,25 times the actuator effort output. Stem Protection All valves are equipped with ribbed protection on the stem, in order to prevent corrosion and / or locking of the valve due to fouling. When the valve has Manual or Electric Actuator drive, this will also have a protector tube for External Stem (above the steering wheel or electric actuator). Actuators Hand Wheel: - Manual operation valves until DN 10 are manufactured with relief torque system and operated directly by handwheel. - Manual operation valves from DN 12 and up are manufactured with reducer gears system and operated directly by handwheel. 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 3

4 Working Pressure Knife Gate Valves with Gates in: AISI 316, AISI 316L, 2205 Super Duplex and C-276 Hastelloy DN (Ø) CWP (Working Pressure) 2 to 6 18 to 24 50mm to 400mm 650mm to 1050mm 10 bar 6 bar 150 psi 90 psi 100 mca 60 mca Knife Gate Valves with Gates in: 17-4PH DN (Ø) CWP (Working Pressure) 2 to 6 18 to 32 50mm to 400mm 650mm to 1050mm 14 bar 8,5 bar 200 psi 120 psi 140 mca 85 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. 4

5 Material ITEM DESCRIPTION MATERIAL 1 Body Nodular Cast Iron, ASTM A536 2 Preme gasket Carbon Steel, ASTM A36 3 Cleaning Lid (Option) Carbon Steel, ASTM A36 4 Sealing of the Natural Rubber, EPDM, Chlorobutyl, Viton and Cleaning Lid (Option) others 5 Gate AISI 316L, AISI 317L, 17-4 PH, Hatelloy, Alloy and others 6 Hoses / Sleeves Natural Rubber, EPDM, Chlorobutyl, Viton and others 7 Superior Sealing Synthetic fiber with PTFE 8 Action Support Carbon Steel, ASTM A36 9 Fork Stainless Steel, ASTM A351 CF8 10 Stem AISI 304, AISI 316 and others 11 External Protection Stem Carbon Steel, SAE Internal Protection Stem Flexible Rubber or canvas 13 Hand Wheel SAE 323 (Aluminium) 14 Stem Nut Brass or Bronze restistant to corrosion 15 Prisoners Carbon steel or stainless steel Other materials upon request 5

6 Flange Drilling ANSI B Lbs DIN PN10 (NBR 7675 PN10) 6

7 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. 7