KNIFE EDGE GATE VALVE:
Flow-age Solid cast knife-edge gate valve provides value and performance with many standard features not found in other, commodity knife-edge gate valve. Flow-age Knife edge gate valve is one of the specific design among industrial valves and generally Uni-Directional design with solid cast single wafer, full lugged, two lugs and flanged type body, renewable seat type, rugged stainless steel gate around on both sides for lasting wear resistance, increased packing life and smooth operation. A wide variety of hardened trim options are available on gate & seat ring.
Flow-age Knife-edge gate valves are widely used in various application such as Thermal Power plants, Minings Collieries, Cement Industries of Slurry Lines, Pulp & Paper Industries for Stock Lines, Carbon Black Plants for High temperature gas lines, Dry solid power handling such as polymer chips handling. Sewage and waste water treatment, chemical sledges, sticky media and molasses for sledge and viscous media handling, Steel plant, Sugar Industries, Fly ash, powders, Clean or Corrosive gases.
Flow-age Cylinder Actuators provide a versatile method to automate Knife Edge Gate Valve.
As more processes and systems move to automated control and monitoring, the need for actuated knife gate and slide gate valves becomes apparent. Flow-age manufactures an extensive range of pneumatic cylinder actuator for line valve automation requirements. Actuation provides remote, out-of-sight operation, faster cycling, lower operating costs, better processes management and safer operation.
Air and Hydraulic cylinder actuators from Flow-age provide a versatile and cost effective method of automation. This adds up to a greater value for you.
TYPES OF ACTUATOR
Flow-age offers different types of Cylinder Actuator suitable for Knife Gate & Slide Gate Valve. Flow-age Cylinder Actuator is a double acting design and is available in a wide range of cylinder diameter and stroke lengths.
Standard cycle duty Air cylinder up to 8 bar rated
Specially design for high cycle duty Air cylinder up to 15 psi rated
Specialized Heavy duty Hydraulic cylinder up to 210 bar rated
Type: Double Acting
Cylinder Size Range: 65 to 400mm and other respected to service condition
Rating: Suitable for normal operation with Air supply up to 8 bar. Cylinder tube tasted at 20 bar.
Cylinder Tube Aluminium Grey Color Double Powder Coated
Piston Cast Iron
Piston Seals- Neoprene Rubber
Piston Rod Steel with Hard Chrome Plated (Others available on request)
Piston Rod Seal - Neoprene Rubber
Top & Bottom end Cap Cast Iron with Black Color Double Powder Coated
Tie Rods Steel
Air Connection Ό To 1 NPT (F)
Flowage Cylinder actuators also can be supplied with different types of accessories required for specific application and automation requirements (For knife edge gate valves).
Flow-age also offers a manual hand operation facility with cylinder actuator. Which is a very useful at the time of Air or Electric supply failure.
Make Rotex, Festo, Janatics, ASCO Make
Type 5 x 2 Way
Body Aluminium, Brass, S.S.
Coil Voltage 220 V. / 110 V. / 24 V. D.C.
Weather Proof, Ex-Proof, IIA, IIB, IIC
Size Ό To 1
AIR FILTER REGULATOR
Shavo Norgen / Placka Make Ό To Ύ NPT (F)
Design Mechanical, Proximity Switch
Make BCH, Honeywell, P & F
Type SPDT: (01 N/O + 01 N/C)
DPDT: (02 N/O + 02 N/C)
Enclosure Weather Proof, IIA, IIB, IIC
1. Make: Flucon Make
Type: Pneumatic Pneumatic Type knife edge gate valves
Input: 3 to 15 psig
2. Make KOSO Make
Type: Electro-Pneumatic Type (I/P Converter in built)
Output: 4 20 mA
Make: Flucon / ABB Make, Weather Proof
Input: 4 20 mA
Output: 3 to 15 psig
End Size Ό NPT (F)
SPEED CONTROL VALVE
Needle valve to control the speed of actuator operation during open & close
Body S.S., Aluminium, Brass
Size Ό to ½ NPT (F)
PNEUMATIC TUBING & FITTINGS
For Knife Edge Gate Valves
Tubing M.O.C.: Copper, PVC Covered Copper, Stainless Steel
Fittings M.O.C.: Brass, Stainless Steel
Size: Ό To ½
COMPANION FLANGES, GASKETS & FASTENRS
KB 63 Full lugged, Wafer type, Flangeless, cast single body, Uni-Directional Knife Edge Gate Valve
KB 64 Two Lug, Wafer type, Flangeless, cast single body, Uni-Directional Knife Edge Gate Valve
KB 65 Flange Type, cast single body, Uni-Directional Knife Edge Gate Valve
KB 66 Full lugged, Wafer type, Flangeless, cast single body, Bi-Directional Knife Edge Gate Valve
KB 67 Two Lug, Wafer type, Flangeless, cast single body, Bi-Directional Knife Edge Gate Valve
KB 68 Flange Type, cast single body, Bi-Directional Knife Edge Gate Valve
Selection Of Body Material
BD 1 Cast Iron
BD 2 Ductile Iron
BD 3 ASTM A 216 GR. WCB (Cast Carbon Steel)
BD 4 ASTM A 351 GR. CF 8 (SS 304)
BD 5 ASTM A 351 GR. CF 8M (SS 316)
BD 4L - STM A 351 GR. CF 3 (SS 304L)
BD 5L - ASTM A 351 GR. CF 3M (SS 316L)
BDX Special Body Material
Selection Of Seat Material
ST 1 SS 304
ST 2 SS 316
ST 1L SS 304L
ST 2L SS 316L
ST 3 Nitriding to approx 600-1250 HV1 surface hardness
ST 4 Stelliting overlay on seat with min 1.0mm thickness and min 40 HRc hardness.
ST: EPR Replaceable EPDM Rubber, max. temp. up to 1200 cen.
ST :VTN - Replaceable VITON Rubber, max. temp. up to 2320 cen.
ST: TFE - Replaceable P.T.F.E., max. temp. 2100 cen.
STX Special Seat
Selection Of Gate Material
GT 1 SS 304
GT 2 SS 316
GT 1L SS 304L
GT 2L SS 316L
GT 3 Nitriding to approx 600-1250 HV1 surface hardness
GT 4 Stelliting overlay on Gate Edge with min 1.0mm thickness and min 40 HRc hardness.
GTX Special Gate
Selection Of Gland Packing Material
GP 1 P.T.F.E. Impregnated Asbestos yarn suitable for maximum temperature up to 1210 C.
GP 2 Square Graphited Asbestos yarn, suitable for temperature up to 1210 C And pressure 150 psi
GP 3 Pure P.T.F.E. suitable up to temperature up to 4500 F and pressure maximum 150 psi
GPX Special Packing
ES 1 Full Lugged / Two Lugs wafer style with BSP thread hole is the chest area and Lugs
ES 2 - Full Lugged / Two Lugs wafer style with BSP thread hole is the chest area and Through hole is Lugs
DESIGN & TESTING
MSS SP 81 applies only to bonnet less metal-seated knife gate valves, 2 to 24 size, 150 psi CWP. Sizes above 24 are not covered under this standard. Additionally resilient seated knife gate, slide gate valves are no taken standard MSS SP 81. These products are subject to the individual manufacturers internal testing & design standard.
Body MSS SP-81 requires the valve body (pressure vessel and related structure) to designed for and hydrostatically pressure tested to 1.5 times the rated working pressure
# Valve rated pressure 150 psi
# Body test pressure 225 psi
Gate MSS SP-81 requires the gate to be designed for and hydrostatically pressure tested to 1.1 times the rated working pressure
# Valve rated pressure 225 psi
# Gate test pressure 165 psi
Seat - MSS SP 81 has an allowable leakage rate (for metal to metal seated valves) of 40 cc per inch of diameter, per minute at 40 psi pressure. On a 12 valves this would be equal 40 times 12, or 480 cc per minute at 40 psi.
Face To Face MSS-SP-81 has specified face-to-face dimension and tolerance of each valve size to assure ease of installation for the consumer, regardless of the valve manufacturer. See catalogue for dimension.