TOBO STEEL GROUP CHINA
Stainless Steel 316 Manual Knife Gate Valve 4'' PN10 Flange End
Quick Details:
Stainless steel knife gate valve
Features:
● FLANGE END
● PRESSURE: 0.6/1.0/1.6MPa OR Class150
● SIZE: DN50~DN600, OR 2”~24”
● BODY:STEEL/STAINLESS STEEL
● SEAL: STAINLESS STEEL/ EPDM/PTFE
● MEDIUM: PAPER PULP,SEWAGE,CINDER,ASH
Specification
● DESIGN AND MANUFACTURE: JB/T8691, MSS SP-81
● END FLANGES ,ASME B16.5, DIN
● INSPECTION AND TEST JB/T8691, MSS SP-81
| Product Name | Material |
| Valve Body | Ductile iron, Carbon steel, Stainless steel |
| Knife | Stainless steel |
| Stem | Stainless steel |
| Handwheel | Cast iron |
| Sealing | NBR/EPDM/PTFE or Metal Seat |
Product Description
knife type gate valve has the advantages of simple and compact structure, reasonable design, light material,
reliable sealing, light and flexible operation, small size, smooth passage, small flow resistance, light weight,
easy installation and easy disassembly. The working pressure is 1.0MPa2.5MPa, and the working temperature
is normal when the temperature is-29-650°C. The knife-type gate valve has a shearing function, which can scrape
off the adhesive on the sealing surface and automatically remove debris. The stainless steel gate can prevent sealing
leakage caused by corrosion.
| Size Range: | DN50~600mm NPS 2”-24” (Larger size on request) |
| Max Working Press.: | DN50~DN250: 10Bar NPS2~NPS10:150Psi |
| DN300~DN450: 7Bar NPS12~NPS18:90Psi | |
| DN500~DN600: 4Bar NPS20~NPS24:60Psi | |
| Temp. Range: | -29...+800℃ |
| Seal Tightness: | According to MSS SP-81 |
| Body Material: | Carbon Steel, Stainless Steel, Special Allory |
| Gate Material: | Stainless Steel Chrome Plated, Special Allory |
| Seat Material: | Stainless Steel+STL |
| EPDM (120°C) /Viton(200°C)/PTFE(200°C) /NBR(90°C) | |
| Face to Face: | MSS SP-81 |
| Flange Standard: | GB/T 9113.1, JB/T 79.1, HG 20592, ASME B16.5, EN1092-1 |
| Applications: | Pulp & Paper, Water Treatment,Beverage & Food,Fine Chemical, |
| Power Planet,Steel Industry, etc. |
Main Feature:
This valve is widely applied to pipelines such as water supply and drainage, construction, oil, chemical industry,
natural gas, medicine, power plant, nuclear power plant and urban pollution discharge etc for purpose of adjusting
or cutting the flow contains various medium, such as thick granule, sticky liquid and floating contamination ect.
Technical Data:
| Nominal Diameter DN(mm): | 50(2’’)~1200(48’’) |
| Nominal Pressure PN(MPa): | 0.6~1.6 (class150) |
| Testing Pressure Shell PN(MPa): | 1.5~2.4 |
| Testing Pressure Sealing PN(MPa): | 1.1~1.76 |
| Seal type | hard / soft (EPDM,NBR and polyurethane) |
| Leakage: hard seal: | Level D(liquid 0.1xDNmm);soft seal: Level A (zero leakage) |
Material could be:
| Part | Material |
| Body | CI |
| Seal Ring | NBR |
| Knife | Stainless steel 304 |
| Packing | PTFE |
| Yoke | A3 |
| Gland | WCB , ZL103 |
| Stem Nut | Brass |
| Stem | 316 |
| Bearing | ZChSnSb10-6 |
| Standard Element | Stainless steel 201 , 304 |
Application:
Gold mine power,ore tailing,paper or wood pilp,fibers,dust,chemical treatment sewage,sedimentation
tanks,ores,slag, asphalt,bin outlets,fruit,grain,grout,waste water from slaughterhouse,pneumatic transportation
pipelines or beer brewage media. water supply and draininage or deslagging of power plants(applicable for high
temperature≤540°c and superhigh temputerature ≤ 900°c.
Product charateristics:
It's characterized by its compact design,being space-effective,low price,easy installation, complete protection from
abrasion and seizure,user-friendly maintenance and operation,long service life and free actuator options.
BODY:
· Cast-in guide claws at the port bottom for gate fixture, instead of a groove, eliminates potential valve shutoff clogging
while providing tighter seal. The guide claws also push gate to seat for tight seal in closed position.
· Integral body design ensures easy assembly and 0 shell leakage.
· Full port design minimizes pressure drop and maximize flow capacity.
· PTFE resilient points against gate eliminate metal-metal contact between gate and bo dy.
SEAT:
· Side-entry seat is replaceable, reducing the cost of maintenance.
· L-shape seat retainer locks seat into valve body and covers seat side to prevent direct flow flushing.
GATE:
· Beveled knife edge provides strong cutting stress and tight sealing.
· Gate thickness can be increased to meet higher pressure.
· Gate surface is well polished at both sides for tight seal and less jamming.
· Gate is hard chrome coated for metal sealing valve.
STEM:
· Stem cover is available to ensure long service life for stem.
· Two thrust bearings minimizes torque for operation.
· Grease nipple is available to ease bearing lubrication.
Drawing:
|
N |
L |
D1 (PCD) |
d (bore) |
N-M |
H |
|---|---|---|---|---|---|
| 50 | 42 | 114 | 45 | 4-M16 | 320 |
| 65 | 43 | 127 | 60 | 4-M16 | 325 |
| 80 | 45 | 146 | 74 | 4-M16 | 360 |
| 100 | 45 | 178 | 93 | 8-M16 | 400 |
| 125 | 52 | 210 | 116 | 8-M16 | 441 |
| 150 | 52 | 235 | 138 | 8-M20 | 507 |
| 200 | 65 | 292 | 188 | 8-M20 | 625 |
| 250 | 70 | 356 | 233 | 12-M20 | 770 |
| 300 | 70 | 406 | 281 | 12-M22 | 873 |
| 350 | 70 | 470 | 330 | 12-M22 | 981 |
| 400 | 96 | 521 | 368 | 12-M22 | 1098 |
| 450 | 108 | 584 | 415 | 16-M22 | 1219 |
| 500 | 121 | 642 | 460 | 16-M22 | 1329 |
| 600 | 148 | 756 | 560 | 16-M22 | 1553 |
Contact Person: Ms. TOBO
Tel: 021-31262012
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