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**Commodity Name:** JIS F7474 Cast Steel 20k Screw-down Check Angle Valves
**Product Description:**
This JIS F7474 cast steel check valve is designed for industrial use, especially in applications involving high-viscosity fluids or media with suspended particles. The valve features a simple flow path with minimal dead zones and vortex areas, allowing the fluid itself to help prevent clogging and providing excellent self-cleaning properties. It also offers low flow resistance and a flow coefficient comparable to that of double-seat valves, making it ideal for use in pipelines where flow direction changes are required. The flow typically enters from the bottom and exits on the side.
**Key Features:**
- **Material:** Cast Iron
- **Structure:** Tubular
- **Function:** DDCV Double Lobe, SFCV Rubber Lobe, NRVZ Silence, NRVG Silence
- **Flow Direction:** Reversing
- **Application:** Industrial, Water Treatment
- **Standards:** JIS, CCS, ABS, GL, NK, BV, LR, DNV, RINA
- **HS Code:** 8481804090
- **Connection Type:** Thread
- **Pressure Rating:** Low Pressure
- **Sealing Type:** Bellows Globe Valve
- **Trademark:** Trust
- **Origin:** China
**Dimensions Table (JIS 7474 Cast Steel 20k Screw-down Check Angle Valves – Size 32–250):**
| DN (mm) | L1 (mm) | H (mm) | Handwheel Dia (mm) | Flange Connection Dimensions | N (mm) |
|---------|---------|--------|--------------------|------------------------------|--------|
| | | | | D (mm) | C (mm) | t (mm) | n-d (mm) | |
| 32 | 100 | 240 | 160 | 135 | 100 | 18 | 4-19 | M16 |
| 40 | 110 | 255 | 160 | 140 | 105 | 18 | 4-19 | M16 |
| 50 | 125 | 270 | 200 | 155 | 120 | 18 | 8-19 | M16 |
| 65 | 135 | 295 | 224 | 175 | 140 | 20 | 8-19 | M16 |
| 80 | 150 | 325 | 250 | 200 | 160 | 22 | 8-23 | M20 |
| 90 | 160 | 345 | 265 | 210 | 170 | 24 | 8-23 | M20 |
| 100 | 170 | 365 | 280 | 225 | 185 | 24 | 8-23 | M20 |
| 125 | 200 | 415 | 315 | 270 | 225 | 26 | 8-25 | M22 |
| 150 | 225 | 460 | 355 | 305 | 260 | 28 | 12-25 | M22 |
| 200 | 280 | 520 | 455 | 350 | 305 | 30 | 12-25 | M22 |
| 250 | 310 | 595 | 560 | 430 | 380 | 34 | 12-27 | M24 |
**Main Products Offered:**
a) Standard Marine Butterfly Valve
b) Blind Plate Valve
c) Lift Stop Valve
d) Check Valve
e) Gate Valve
f) Sea Valve
g) Valve Chest
h) Quick Close Valve
i) Storm Valve
**Additional Specifications:**
- Nominal Diameter: DN6mm – DN750mm
- Nominal Pressure: PN0.1MPa – PN6.4MPa
- Certifications: CCS, GL, BV, DNV, KR, ABS, ISO9001:2000
- Air Pipe Head Certified by CCS, KR, GL, and ISO9001:2000
**How to Order:**
1. Mounting Type
2. Flange Standard: S-ISO/J-JIS/G-GB, etc.
3. Materials of Valve Seat: Buna-N rubber? Fluorine-containing rubber? Tetrafluoroethylene-containing rubber?
4. Materials of Valve Body: Cast Steel? Cast Iron? Ductile Cast Iron? Bronze? Stainless Steel?
5. Nominal Diameter: DN (mm)
6. Nominal Pressure: PN (MPa)
7. Operating Type: Manual (Handle, Worm, Spiral), Electric, Pneumatic, Hydraulic
8. Structure Type: Centered, Double Eccentric
This product is suitable for a wide range of industrial applications and meets international standards for quality and performance. Whether you're looking for standard or custom solutions, we provide reliable and durable valves tailored to your needs.