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JIS Standard · Cast Steel · OS&Y Rising Stem
JIS Cast Steel Gate Valves for Industrial On-Off Pipeline Service
JIS10K / JIS20K flanged ends, sizes 1-1/2″ to 20″ (40A~500A), SCPH2 / A216 WCB cast steel with flexible wedge and bolted bonnet per JIS B2073 / B2083.
Overview
JIS Cast Steel Gate Valve is one type of valve whose on-off disc is the flexible wedge gate, whose moving direction is perpendicular with flow. Gate valve can be only full open or full close. JIS gate valves are widely used in series of industries, especially in oil & gas filed, power plant, etc. Flowspec Luokai can produce the JIS cast steel gate valve with JIS10K, JIS20K flanged ends in accordance with JIS B2073 and JIS B2083. Just feel free to contact us now to get best prices. 30 years of experience. High quality. Big stock. Fast delivery.
1. Features
- Full bore design
- OS&Y, outside screw and yoke
- Rising stem and non-rising hand wheel
- BB, bolted bonnet
- Flexible wedge (1-1/2″~2″ Solid), fully guided
- Choice of solid or split wedge
- Renewable seat rings
- Forged T-head stem
- By pass on request
- Available with gear operator
2. Technical Specifications
- 10K / 20K
- Size: 1-1/2″ ~ 20″ (40A~500A)
- Materials: SCPH2, A216 WCB
- Applicable medium: water, waste water, oil, gas, slurry, pulp
- Applicable temperature: -29℃ ~ +425℃ (higher temperature is available upon request)
3. Standards
- Design & manufacturing: JIS B2073 / B2083
- Face to face: JIS B2002
- Flanged ends: JIS B2212 / B2214
- Inspection & testing: JIS B2003
4. Applications
- Mining, steel industry
- Coal, slurry industry
- Paper making industry
- Power plant
- Oil, chemical industry
- Fertilizer, pharmaceutical industry
- Waste water, sludge, sewage treatment industry
Main Parts and Materials
| Item | Part | Material |
|---|---|---|
| 1 | Body | ASTM A216 GR.WCB |
| 2 | Seat Ring | ASTM A105 + Stellite Faced |
| 3 | Disc | ASTM A216 GR.WCB+13Cr Faced |
| 4 | Stem | ASTM A182 GR.F6 |
| 5 | Gasket | Soft Iron + Graphite |
| 6 | Bonnet | ASTM A216 GR.WCB |
| 7 | Bonnet Bolt Nuts | ASTM A194 GR.2H |
| 8 | Bonnet Bolts | ASTM A193 GR.B7 |
| 9 | Backseat Bushing | ASTM A276 Type 410 |
| 10 | Stem Packing | Braided Graphite & Die Formed Graphite Ring |
| 11 | Eye Bolt Pins | Die formed Graphite Ring Carbon Steel |
| 12 | Gland Eye Bolts | ASTM A307 GR.B |
| 13 | Gland | ASTM A276 Type 410 |
| 14 | Gland Flange | ASTM A216 GR.WCB |
| 15 | Eye Bolt Nuts | ASTM A194 GR.2H |
| 16 | Grease Nipple | Carbon Steel |
| 17 | Stem Nut | ASTM A439 GR.D-2 |
| 18 | Retaining Nut | Carbon Steel |
| 19 | Hand wheel | Ductile Iron |
| 20 | Hand wheel Nut | Carbon Steel |
| 21 | Screw | Carbon Steel |
| 22 | Yoke | ASTM A216 GR.WCB |
| 23 | Yoke Pan Bolt Nuts | ASTM A194 GR.2H |
| 24 | Yoke Pan Bolts | ASTM A193 GR.B7 |
| 25 | Bearing | Steel |
Dimensions & Weights — JIS 10K
| Size | L (in) | L (mm) | H (in) | H (mm) | Do (in) | Do (mm) | D (in) | D (mm) | D1 (in) | D1 (mm) | D2 (in) | D2 (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-1/2″ (40A) | 6.50 | 165 | 10.00 | 250 | 6.30 | 160 | 5.50 | 140 | 4.15 | 105 | 3.20 | 81 |
| 2″ (50A) | 7.00 | 178 | 16.00 | 409 | 7.00 | 180 | 6.00 | 155 | 4.70 | 120 | 3.78 | 96 |
| 2.5″ (65A) | 7.50 | 190 | 21.00 | 535 | 8.00 | 200 | 7.00 | 175 | 5.50 | 140 | 4.60 | 116 |
| 3″ (80A) | 8.00 | 203 | 22.50 | 570 | 8.00 | 200 | 7.28 | 185 | 6.00 | 150 | 5.00 | 126 |
| 4″ (100A) | 9.00 | 229 | 23.00 | 590 | 9.00 | 220 | 8.27 | 210 | 7.00 | 175 | 6.00 | 151 |
| 5″ (125A) | 10.00 | 254 | 24.00 | 610 | 11.00 | 280 | 10.00 | 250 | 8.30 | 210 | 7.20 | 182 |
| 6″ (150A) | 10.50 | 267 | 25.00 | 630 | 12.00 | 300 | 11.00 | 280 | 9.45 | 240 | 8.35 | 212 |
| 8″ (200A) | 11.50 | 292 | 38.00 | 960 | 12.50 | 320 | 13.00 | 330 | 11.40 | 290 | 10.30 | 262 |
| 10″ (250A) | 13.00 | 330 | 45.50 | 1158 | 14.00 | 350 | 16.00 | 400 | 14.00 | 355 | 12.80 | 324 |
| 12″ (300A) | 14.00 | 356 | 54.00 | 1378 | 18.00 | 450 | 17.50 | 445 | 16.00 | 400 | 14.50 | 368 |
| 14″ (350A) | 15.00 | 381 | 61.00 | 1543 | 20.00 | 500 | 19.30 | 490 | 17.50 | 445 | 16.30 | 413 |
| 16″ (400A) | 16.00 | 406 | 68.50 | 1738 | 24.00 | 600 | 22.00 | 560 | 20.00 | 510 | 18.70 | 475 |
| 18″ (450A) | 17.00 | 432 | 77.00 | 1959 | 24.00 | 600 | 24.41 | 620 | 22.25 | 565 | 21.00 | 530 |
| 20″ (500A) | 18.00 | 457 | 87.00 | 2214 | 27.00 | 680 | 26.60 | 675 | 24.50 | 620 | 23.00 | 585 |
Dimensions & Weights — JIS 20K
| Size | L (in) | L (mm) | H (in) | H (mm) | Do (in) | Do (mm) | D (in) | D (mm) | D1 (in) | D1 (mm) | D2 (in) | D2 (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-1/2″ (40A) | 6.50 | 165 | 10.00 | 250 | 6.30 | 160 | 5.50 | 140 | 4.15 | 105 | 3.20 | 81 |
| 2″ (50A) | 7.00 | 216 | 19.00 | 480 | 8.00 | 200 | 6.00 | 155 | 4.70 | 120 | 3.78 | 96 |
| 2.5″ (65A) | 9.60 | 241 | 20.10 | 510 | 10.00 | 250 | 7.00 | 175 | 5.50 | 140 | 4.60 | 116 |
| 3″ (80A) | 11.45 | 283 | 22.84 | 580 | 11.00 | 280 | 7.28 | 200 | 6.00 | 160 | 5.00 | 132 |
| 4″ (100A) | 12.20 | 305 | 27.56 | 700 | 14.00 | 350 | 8.86 | 225 | 7.28 | 185 | 6.00 | 160 |
| 6″ (150A) | 15.87 | 403 | 37.00 | 940 | 16.00 | 400 | 12.00 | 305 | 10.24 | 260 | 9.06 | 230 |
| 8″ (200A) | 16.50 | 419 | 46.85 | 1190 | 18.00 | 450 | 14.00 | 350 | 12.00 | 305 | 10.83 | 275 |
| 10″ (250A) | 18.00 | 457 | 54.75 | 1390 | 20.00 | 500 | 17.00 | 430 | 15.00 | 380 | 13.58 | 345 |
| 12″ (300A) | 20.00 | 502 | 64.00 | 1600 | 20.00 | 500 | 19.00 | 480 | 17.00 | 430 | 15.55 | 395 |
| 14″ (350A) | 30.00 | 762 | 70.00 | 1750 | 24.00 | 600 | 21.26 | 540 | 19.00 | 480 | 17.32 | 440 |
| 16″ (400A) | 33.00 | 838 | 76.00 | 1900 | 24.00 | 600 | 23.82 | 605 | 21.26 | 540 | 19.50 | 495 |
| 18″ (450A) | 36.00 | 914 | 91.34 | 2320 | 26.00 | 650 | 26.60 | 675 | 23.82 | 605 | 22.00 | 560 |
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
OEM Custom Solutions
Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
Worldwide Delivery
Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle