“FLOWRISE” Brand Knife Edge Gate Valves..

“FLOWRISE” Brand Knife Edge Gate Valve is the specific design. This design ensures minimum contact between the parts of the valve, Reduces the Wear & Tear. The high performance Knife Gate Valves feature. Non Sliding Motion, Avoid Sliding Contact between Body & Gate allow flushing of media form the valve interior. A wide variety of hardened trim options are available on Gate, Seat and Wear Ring. Batten edge of the Gate (Knife-Edge) allows the tight shut off even when solid particles settles at the bottom of the Body.

Knife-Edge Gate Valves in Mining, Power, Steel, Chemical, Paper and withstand high Temperature & Abrasive Slurries in Industries Ideal for high-density Slurry Lines.

Knife Gate Valve are Unidirectional Valves, Excellent Hopper Isolation Valves with their ability to cut through flowing media and closed by dislodging any material in the seating area.

We are successfully ranked among the leading manufacturers and suppliers of Knife Edge Gate Valve.
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pneumatic operated knife edge gate valve
pneumatic operated knife edge gate valve

Type’s of Knife

Edge Gate Valves. Uni-directional / Bi-directional Knife Edge Gate Valve
Body/Gate/Seat M.O.C. Cast Steel / Cast Iron / S.G.Iron/SS 304 / 316 / 316L.

Body: Cast Corrosion resistant steel or cast iron to provide receptivity against corrosion For all whetted parts
Stem: Stainless steel or as desire, having double start thread rising / non-rising spindle, For fast closing and opening.
Gate: The Stainless steel knife gate plate is precision-buffed on both sides, to enhance Packing life and ensure positive shut off even heavy or high-viscous fluid.
Seat: Renewable Metal-to-Metal, replaceable type, soft seat and other Suitable to application.
Port Type : Round Port, Lugged Type.
Valve End Connection : Flange End / Uni Lugged, Wafer , Two Lug, Wafer Flange-less,
Sizes : 50mm T0 800mm
Rating : 10 bar up to 800mm for valves with body in C.S., S.S. and specially alloy, 10 bar Up to 300mm & 5 bar on higher sizes up to 800mm with body in Cast Iron / Ductile Iron.
Drilling : Option Include ANSI, DIN, BS, JIS and AS standard; others on request
Operation Available : Knife edge Gate Valves Operation – Manual, Cylinder Operated, Electrical Actuator, Pneumatic Actuator with Manual Override.
Widely Used For “FLOWRISE” Brand Knife edge Gate Valves for Slurry Lines, Sludge and Viscous Media Handling, Pulp and Paper Stock Lines, Dry Solid and Powder Handling, High Temperature Gas Lines and Many More.

Knife Edge Gate Valve

“FLOWRISE” Brand Solid cast knife-edge gate valve provides value and performance with many standard features , commodity knife-edge gate valve. Flowrise 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.

Manual Override

“FLOWRISE” offers a manual hand operation facility with cylinder actuator.

Application

“FLOWRISE” Brand Knife-edge gate valves are widely used in various application such as Mining’s Collieries, Cement, Plup, Paper, Thermal Power Plants, Stock Lined, C.S. Plant for High temperature gas lines, Dry solid power handling such as polymer chips handling. Chemical Sledges, Sewage and waste water treatment, sticky media and molasses for sledge and viscous media handling, Steel plant, Fly ash, Sugar Industries, powders, Clean or Corrosive gases.

Knife Edge Gate Valve manufacturers, suppliers and exporters in Ahmedabad

Selection of Body Material

  • Cast Iron
  • S.G.IRON
  • Cast Carbon Steel
  • SS 304 (CF8)
  • S.S.316 (CF8M)
  • S.S.316L (CF3M)

Seat Material

  • SS 304
  • SS 316
  • SS 304L
  • SS 316L
  • Nitriding to approx 600-1250 HV1 surface hardness
  • Replaceable EPDM Rubber, max. temp. up to 1200 cen.
  • Replaceable VITON Rubber, max. temp. up to 2320 cen.
  • Replaceable P.T.F.E., max. temp. 2100 cen.

Gate Material

  • SS 304 / L
  • SS 316
  • SS 316L
Valves Manufacturer In Surat

Gland Packing

P.T.F.E. Impregnated Asbestos yarn suitable for maximum temperature up to 1210 C. Square Graphite Asbestos yarn, suitable for temperature up to 1210 C And pressure 150 psi Pure P.T.F.E. suitable up to temperature up to 4500 F and pressure maximum 150 psi

Valve End Style

Full Lugged / Two Lugs wafer style with BSP thread hole is the chest area and Lugs 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.

Pneumatic Acutators

“FLOWRISE” Brand Cylinder Actuators provide a versatile method to automate Knife Edge Gate Valve. 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. We offers different types of Cylinder Actuator suitable for Knife Gate & Slide Gate Valve. 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
  • Specialized Heavy duty Hydraulic cylinder up to 210 bar rated
  • Specially design for high cycle duty Air cylinder up to 15 psi rated
knife edge gate valve manufacturers in ahmedabad

Type: Double Acting

  • Cylinder Size Range: 2.5” to 16” 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 – ¼” To 1” NPT (F)

Soenoid Valve

  • Type – 5 x 2 Way
  • Body – Aluminum, Brass, S.S.
  • Coil Voltage – 220 V. / 110 V. / 24 V. D.C.
  • Weather Proof, Ex-Proof, IIA, IIB, IIC
  • Size – ¼” To 1”

Air Filter Regulator

  • ¼” To ¾” NPT (F)

Limit Switches

  • Design – Mechanical, Proximity Switch
  • Type – SPDT: (01 N/O + 01 N/C)
  • DPDT: (02 N/O + 02 N/C)
  • Enclosure – Weather Proof, IIA, IIB, IIC

Positioners

  • Type: Pneumatic – Pneumatic Type knife edge gate valves
  • Input: 3 to 15 psig

I/P Converter

  • Input: 4 – 20 mA
  • Output: 3 to 15 psig
  • End Size – ¼” NPT (F)

Speed Control Valve

  • Needle valve to control the speed of actuator operation during open & close
  • Body – S.S., Aluminum, Brass
  • Size – ¼” to ½” NPT (F)

Pneumatic Tubing & Fittings

  • Tubing M.O.C.: Copper, PVC Covered Copper, Stainless Steel
  • Fittings M.O.C.: Brass, Stainless Steel
  • Size: ¼” To ½”
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.

  • Maximum allowable leakage of 0.6 GPM when tested with water at 40 psi applied in the normal flow direction.
  • No visible leakage when tested with water at 40 psi (For Soft seated valves only)
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.
No. Body Parts Name M.O.C. of Parts
1. Body C.I./WCB/CF8/CF8M / Duplex
2. Yoke C.I./WCB/CF8/CF8M
3. Yoke Bush / Sleev C.S.
4. Disc S.S. 304 / 316
5. Gland C.I./WCB/CF8/CF8M
6. Gland Stud & Nut C.S.
7. Gland Packing Graphite / PTFE
8. Seat Soft / Metal
9. Seat Ring CF8 / CF8M
10. Seam / Spindle S.S. 304 / 316
11. Spindle Pin / Stud & Nut S.S. 304 / 316
12. Nut C.S.
13. Wheel C.I.
14. Design Lug / Wafer
Knife Edge Gate Valves manufacturer & exporter in India
Size A B C D E
50 48 203 310 335 468
80 51 203 375 425 560
100 51 203 420 495 622
125 57 254 470 565 726
150 57 254 510 625 789
200 70 305 610 775 958
250 70 406 665 915 1109
300 76 406 755 1055 1280
350 76 508 885 1240 1436
400 89 508 900 1300 1495
450 89 508 1025 1485 1676
500 114 508 1140 1640 1891
600 114 508 1340 1960 2195
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Technical Specification

Design Std. MSS-SP81
End Eonnection Lugged To Asme (Ansi)B 16.5 RF 150# Flanged / Wafer
Face to Face MSS-SP81
Testing Std. MSS- SP81
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