Knife Gate Valves (KGVF2L)



Pneumatics


Manual


Motorized

Type Wafer,Full Lug, Uni-directional Knife Gate Valve - Rising Stem Handwheel
Typical Applications Medium & Heavy duty applications
Sizes available 50-500mm (2" to 20")
Pressure rating Cast iron body CWP 10 bar, 50-300mm (2" – 12") size; lower on higher sizes
Steel/St. Steel CWP 10 bar, 50-600mm (2" – 20") size; lower on higher sizes
Face-to face Complies with MSS SP-81 (upto 900mm (36") size)
Drilling To suit ANSI 150lb,AS 2129 Table D & E, DIN PN10 (others on some sizes)
Material availability standard; others on request
Body Steel, stainless steel (304, 316)
Gate 304, 316 st. steel
Packing PTFE syntex fiber standard; others on request
Seat / Leakage Metal-to-metal – As per MSS SP-81 (upto 500mm (20") size
  Resilient seats – EPDM, Chloroprene, Viton – Zero leak
  PTFE – Max leakage of 4cc/min/inch (upto 600mm (24") size
Superstructure Steel, epoxy painted
Handwheel Cast iron, epoxy painted
Pneumatic actuators Is available
UNITECH-Knife Gate Valves provide reliable and long life on a variety of tough applications including corrosive and abrasive services. Key aspects like operating loads, ease of operation, service conditions etc. are considered in its design and construction to ensure long and maintenance free service life. Through continuous process improvement our products are competitive enough to meet the global requirements. UNITECH Knife Gate Valves are designed for isolation, on-off and throttling application.

  • Wafer type, compact design.
  • Heavy duty single piece & two piece body, rigid construction.
  • Stainless steel gate, Self-cleaning, Beveled Edge, Precision machined for smooth operation Et optimum sealing.
  • A wide range of materials of construction.
  • Different actuators to suit the customer's requirement.
  • Variety of seating options to suite different service conditions.
  • Manufactured Et tested in accordance with MSS SP -81 and rated for 10 Bar CWP (upto 900 mm).
  • Available in sizes 50 mm (2") to 1800 mm (72").

Knife Gate Valve has wide range of application as a shut-off valve in pipelines and hoppers. It is perhaps the only valve, which can be used in hopper isolation. The beveled gate cuts through the fluid by dislodging any material in the seating area. In a highly abrasive application deflector cone is used to prevent the body from direct impingement or abrasive media.
The Knife Gate Valves find application in industries such as Pulp Ex paper, Cement, Aluminium, Carbon Black, Fertilizer, Sugar, Coal Ft Mining, Power Generation, Ash Handling, Iron Et Steel, Sewage & Waste Water Treatment, Food and beverage etc.

ACUATOR :

The standard valves are provided with hand -wheel. The other actuators such as Chain Wheel, Lever, Bevel Gear, Pneumatic Cylinder & Electric Motor are available on request.
ACCESSORIES (On Request) : • Deflector Cone • Purge Connection • Fail Safe System • Locking Device • Manual Over -ride • Extended Stem • Proximity Switches • Solenoid Valves • Limit Switches • Air Filter (Regulator) • Chain for chain -wheel actuator • Mating flanges & hardware


SIZE A B P N L
50 48 203 294 347 415
65 48 203 330 400 480
80 51 203 350 437 510
100 51 203 379 480 560
125 57 270 422 548 665
150 57 270 466 615 730
200 70 270 620 878 940
260 70 390 696 948 1095
300 76 390 798 1100 1220
350 76 500 896 1238 1325
400 89 500 982 1374 1520
450 89 500 1070 1518 1635
500 114 500 1160 1655 1770
600 114 500 1432 2051 2150

MATERIAL OF CONSTRUCTION:

Body - Cast Iron IS 210 FG 260, ASTM A 216 GR, WCB, ASTM A 352, Gr. LCB ASTM 351 Gr, CF8 / CF8M / CF3 / CF3M
Gate - Mild Steel, SS 304, SS 316
Stem - SS 410, SS 304, SS 316
Gland Packing - PTFE
*Special material available on request.
NOTE:
All dimensions are in mm, unless otherwise specified and are indicative only.
In the process of continuous improvement of our products, the data given herein is subject to change.
Please specify the required size, material of construction, type of drive arrangement (if any), flange standard and quantity clearly at the time of placing the order.