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**Product Name:** JIS F7474 Cast Steel 20k Screw-down Check Angle Valve
**Basic Information:**
- **Model No.:** JIS F7474
- **Connection Form:** Thread
- **Pressure Rating:** Low Pressure
- **Sealing Type:** Bellows Globe Valve
- **Standard:** JIS
- **Brand:** Trust
- **Origin:** China
- **Material:** Cast Iron
- **Structure:** Tubular
- **Function:** DDCV Double Lobe, SFCV Rubber Lobe, NRVZ Silence, NRVG Silence
- **Flow Direction:** Reversing
- **Application:** Industrial Use, Water Treatment Systems
- **Certifications:** CCS, ABS, GL, NK, BV, LR, DNV, RINA
- **HS Code:** 8481804090
**Product Description:**
The JIS F7474 Cast Steel 20k Screw-down Check Angle Valve is designed for efficient and reliable operation in various industrial applications. Its streamlined flow path minimizes dead zones and vortex areas, allowing the media itself to scour and prevent clogging. This self-cleaning feature makes it ideal for use with high-viscosity fluids or those containing suspended particles.
With a small flow resistance and a flow coefficient comparable to that of a double-seat valve, this check valve is suitable for applications where fluid flow needs to be controlled at right angles to the pipe. The flow direction is typically bottom-in to side-out.
**Dimensions Table (JIS F7474 Cast Steel 20k Screw-down Check Angle Valves - Size 32–250 mm):**
| 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, ISO9000:2000
- Air Pipe Head Certified by CCS, KR, GL under ISO9000:2000
**How to Order:**
1. Mounting Type
2. Flange Standard: S-ISO/J-JIS/G-GB etc.
3. Seat Material: Buna-N Rubber? Fluorine-containing Rubber? Tetrafluoroethylene-containing Rubber?
4. Body Material: 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 designed to meet international standards and ensure long-term performance in demanding environments. Whether for industrial or marine use, the JIS F7474 valve provides a reliable and durable solution.