FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
1 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
General Description The FKB Knife Gate Valves, model VGU-03 has the function of blocking and / or controlling the flow of fluids. Its
common application is in Fluid with pulp concentration > 5%, Drizzles, Liquor and Tailings. They are equipment to
be installed between flanges, which has Wafer body and Total Lug, which facilitates the installation and distributes
complete tightness between the flanges. With Double Facial Sealing system through elastomer sealing rings, which
have permanent contact with the knife, ensures excellent performance, durability and 100% tightness in both
directions in the open and closed positions without accumulation point and contactless fluid on the body
General Application
Pasta
Concentrated Pulp >5%
Pastes
Drizzles
Pasta with solids
Similar
Key Features and Benefits
Can be applied in dry, wet and / or liquid processes / fluids;
Interchangeable gaskets with permanent contact with the knife, which minimizes the effort / stress of the seat and ensures strength and durability for a high number of processes opening and closing cycles;
Interchangeable seats with easy and rapid exchange without the need for complete disassembly of the valve;
Coated passage, eliminating contact of the process / fluid with the body;
Full bore and without cavity, which eliminates turbulence, pressure drop and possible accumulation of solids in the valve and / or pipe;
100% tightness in both directions, regardless the installation side;
There is no leakage during the drive cycle;
Has knife auto-lubrication system, eliminating the need for maintenance and lubrication of the knife;
The body has a purging system and amplified cleaning caps to perform preventive maintenance without removing the valve of the process line;
One-piece body until 20", which eliminates the use of gaskets applied in bipartite bodies, location of possible leakage;
In case of binding or locking in the actuation, VGU-03 model also has Manual Cleaning System, which enables the cleaning of the valve installed, eliminating the need to remove the valve from the process line. EXTRAORDINARY GAIN AND SAVING OF MANPOWER AND COST REDUCTION, NOWADAYS PREVAILING IN PAPER AND PULP PLANTS;
Through Flange Side holes to facilitate the installation of the valve.
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
2 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
Constructive Description
Standard Construction
FKB and MSS-SP81, last revision
Face-to-face
Wafer (Compact) and Total Lug (all the holes for Flange Fixation).
Through-conduit Body
Built in Iron or Cast Steel, it is manufactured in one piece (up to DN 20" until 500mm), which contributes to the lower weight and easy handling. The one-piece body eliminates gaskets used in bipartite bodies, location of possible leakage. Length above DN 20" is constructed of two pieces.
Covered Passage
Ring built on stainless steel that eliminates the contact between the body and fluid, ensuring no body wearing and
possible quick and easy substitution of the ring, when necessary.
Types of the Passages 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.
Optional: FKB Special Coating, which provides significant increasing of hardness and resistance to wearing from
abrasion.
Sealing of the passage (Interchangeable sealing rings) Constructed of Elastomer is inserted in a simple and fast way between the Passage of Investment Ring and Valve Body so that:
Ensure 100% watertightness in the closed and open position, whereas when the valve in the open position and / or closed sealing rings Interchangeable knife pressure, thus ensuring full passage and minimum stress to the sealing ring;
Do not allow obstruction of passage, ensuring longer life to the fence and very low loss of flow and / or turbulence.
Notice: Metal / Metal sealing ensures sealing Class IV.
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
3 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
Notice: - It is extremely important doing periodical cleaning and / or drainage of the body in order to avoid the process fluid accumulation, so it may cause the locking of the opening and / or closing drive. - There is only process fluid passage through the body when the valve is in operation, in the fully open or closed position there is no pass.
Main Sealing
Steel interchangeable rings host the “O-ring” seats, providing the plain passage, which ensures longer life to
sealing and low-loss flowing.
Superior Sealing (Box Packing)
Made of gasket with compression system through elastomer, in order to guarantee 100% tightness for long periods
and avoid the possibility of leakage due to wearing.
Guide and Scraper
Made of UHMW, PTFE or Metal is designed to guide and scrape the gate, in order to eliminate possible
impregnation fluid within the monoblock body and any possibility of misalignment of the gate.
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
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.
Actuators Manual: - Manual operation valves until DN 14” are manufactured with relief torque system and operated directly by handwheel. - Manual operation valves from DN 16” and up are manufactured with reducer gears system and operated directly
by handwheel.
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
4 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
Note:
- When necessary, valves from DN6” 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, 5bar of working
pressure.
Strong and Reforced Hydraulic Actuator: Designed and developed to operate with, at least, 150bar of working
pressure.
Electric Actuator: Designed and developed to operate, at least, 125% of minimum necessary torque to operate the
valve under maximum pressure. Note: Other Actuators on request
Working Pressure
Knife Gate Valves with Gates in: AISI 304L, AISI 316L, 2205 Super Duplex and C-276 Hastelloy
DN (Ø) 2” to 8” 10” to 16” 18” to 32” 34” to 40”
50mm to 200mm 250mm to 400mm 450mm to 800mm 850mm to 1000mm
CWP
(Working Pressure)
10 bar 6 bar 4 bar 2 bar
150 psi 85 psi 55 psi 30 psi
100 mca 60 mca 40 mca 20 mca
Knife Gate Valves with Gates in: 17-4PH
DN (Ø) 2” to 8” 10” to 16” 18” to 32” 34” to 40”
50mm to 200mm 250mm to 400mm 450mm to 800mm 850mm to 1000mm
CWP
(Working Pressure)
14 bar 8,5 bar 5,5 bar 3 bar
200 psi 120 psi 78 psi 40 psi
140 mca 85 mca 55 mca 30 mca
- CWP: Maximum working pressure body from 0ºC to 70°C
- Hydrostatic test according to ISO 5208
- Hydrostatic test-body in Open/Close position: 1,1 x CWP
- Hydrostatic testof the body in semi-opened position: 1,5 x CWP
- Note: Other Gauges or Pressure upon request.
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
5 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
Material
ITEM DESCRIPTION MATERIAL
1 Body A536, WCB, CF8, CF8M, CF3, CF3M, Duplex,
Super Duplex, Titanium and others
2 Preme Gasket A536, WCB, CF8, CF8M, CF3, CF3M, Duplex,
Super Duplex, Titanium and others
3 Retention box and
Cleaning Covers
A536, WCB, CF8, CF8M, CF3, CF3M, Duplex,
Super Duplex, Titanium and others
4 Sealing of Retention
Box and covers Natural Rubber, EPDM, Chlorobutyl, Viton and others
5 Passage Covering
Ring
A536, WCB, CF8, CF8M, CF3, CF3M, Duplex,
Super Duplex, Titanium and others
6 Gate AISI 304L, AISI 316L, AISI 317L, 17-4 PH,
Hatelloy, Alloy, Titanium and others
7 Sealing of the
passage PTFE, EPDM, Viton, Metal/Metal and others
8 Superior and Inferior
Sealing
Synthetic fiber with PTFE, Pure PTFE, Graphite
and others
9 Reforced support of
actuation Carbon steel, ASTM SAE 1020
10 Cursor (Lifting nut) Brass or Bronze resistant to corrosion
11 Stem AISI 304, AISI 316 and others
12 Handwheel Aluminium, SAE 323
13 Prisoners Carbon Steel or Stainless Steel
Other materials upon request
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
6 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
Flange Drilling
ANSI Drilling
MSS SP 44 Drilling
DIN Drilling
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
7 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
Installation
All equipments provided by FKB are accompanied by an Installation, Operation and Maintenance manual. In case
of doubt, please contact us.
FKB INDÚSTRIA DE EQUIPAMENTOS LTDA.
KNIFE GATE VALVE – VGU-03 (Rev. 09/2015)
8 Estrada do Akama, 1300 – Lambari | Guararema – SP | CEP 08900-000
Fone: +55 11 4693-2042 / 4695-1199 | www.fkbvalvulas.com.br
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.