| Item | WCB | ZG1Cr18Ni9Ti | CF8 (304) | CF3 (304L) | ZG1Cr18Ni12Mo2Ti | CF8M (316) | CF3M (316L) |
|---|---|---|---|---|---|---|---|
| Body / Bonnet | WCB | ZG1Cr18Ni9Ti | CF8 (304) | CF3 (304L) | ZG1Cr18Ni12Mo2Ti | CF8M (316) | CF3M (316L) |
| Stem | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni9 (304) | 00Cr19Ni11 (304L) | 1Cr18Ni12Mo2Ti | 0Cr17Ni12Mo2 (316) | 00Cr17Ni14Mo2 (316L) |
| Disc | WCB | ZG1Cr18Ni9Ti | CF8 (304) | CF3 (304L) | ZG1Cr18Ni12Mo2Ti | CF8M (316) | CF3M (316L) |
| Packing / Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket | V-PTFE, Flexible Graphite Ring, PTFE, Flexible Graphite Wound Gasket |
| Item | WCB | ZG1Cr18Ni9Ti | CF8 (304) | CF3 (304L) | ZG1Cr18Ni12Mo2Ti | CF8M (316) | CF3M (316L) |
|---|---|---|---|---|---|---|---|
| Applicable Medium | Water, steam, oil etc. | Nitric acid and other corrosive medium | Strong oxidizing medium | Strong oxidizing medium | Acetic acid and other corrosive medium | Acetic acid and other corrosive medium | Urea and other corrosive medium |
| Applicable Temperature | -28 ~ 425°C | -28 ~ 425°C | -28 ~ 425°C | -28 ~ 425°C | -28 ~ 425°C | -28 ~ 425°C | -28 ~ 425°C |
| Item | GB Standard | ANSI Standard |
|---|---|---|
| Design and Manufacture | GB12237-89 | API 6D |
| Flange Size | GB/T9113 (according HG20592-97 customizable) | ANSI B16.5 |
| Face to Face Dimension | GB12221-89 | ANSI B16.10 |
| Test & Inspection | JB/T 9092-99, GB/T 13927-89 | API 598 |
| Model | ZTQFL |
|---|---|
| Bore | DN50–500 mm |
| Pressure | 0.6, 1.0, 1.6, 2.5, 4.0 MPa; 150Lb, 300Lb |
| Dimension Standard | GB Standard, American Standard |
| Body Material | Cast Iron, Carbon Steel (WCB), Stainless Steel (CF8, CF8M, CF3, CF3M) |
| Seat Material | Metal Sealed (H, W, Y), PTFE (F) |
| Mode of Action | Double-acting / Single-acting (spring return) pneumatic actuator |
| Control | Switch Type, Adjust Type, Intelligent |
| Selection of Accessories | Solenoid valve, Locator, Limit switch, F.R.L. Combination Unit, Manual Device |
| Model | ZTQFL |
|---|---|
| Bore | DN50–500 mm |
| Pressure | 0.6, 1.0, 1.6, 2.5, 4.0 MPa; 150Lb, 300Lb |
| Dimension Standard | GB Standard, American Standard |
| Body Material | Cast Iron, Carbon Steel (WCB), Stainless Steel (CF8, CF8M, CF3, CF3M) |
| Seat Material | Metal Sealed (H, W, Y), PTFE (F) |
| Mode of Action | Power-on type, Power-off type |
| Control | Switch Type, Adjust Type, Intelligent |
| Selection of Accessories | Stroke switch, Analog quantity feedback module, Electric control box |
| DN | ~H | D | D1 | D2 | C | f | n | d | D3 | D4 | D5 | L | Z-M | Pneumatic Actuator (Double Action) | Interface |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 750 | 115 | 85 | 65 | 16 | 2 | 4 | Φ14 | 115 | 85 | 47 | 125 | M12×4 | ZTCL-130 | |
| 40 | 845 | 150 | 110 | 84 | 18 | 3 | 4 | Φ18 | 160 | 125 | 80 | 160 | M16×4 | ZTCL-140 | |
| 50 | 845 | 165 | 125 | 99 | 20 | 3 | 4 | Φ18 | 180 | 145 | 80 | 169 | M16×4 | ZTCL-160 | |
| 65 | 1000 | 185 | 145 | 118 | 20 | 3 | 4 | Φ18 | 195 | 160 | 110 | 175 | M16×8 | ZTCL-160 | 1/4" |
| 80 | 1050 | 200 | 160 | 132 | 20 | 3 | 8 | Φ18 | 225 | 190 | 137 | 185 | M16×8 | ZTCL-160 | |
| 100 | 1120 | 220 | 180 | 156 | 22 | 3 | 8 | Φ18 | 260 | 225 | 180 | 210 | M16×8 | ZTCL-200 | |
| 125 | 1370 | 250 | 210 | 184 | 22 | 3 | 8 | Φ18 | 280 | 240 | 180 | 230 | M20×8 | ZTCL-250 | |
| 150 | 1450 | 285 | 240 | 211 | 24 | 3 | 8 | Φ22 | 295 | 295 | 210 | 240 | M20×8 | ZTCL-250 | |
| 200 | 1580 | 340 | 295 | 266 | 24 | 3 | 12 | Φ22 | 405 | 335 | 275 | 330 | M22×12 | ZTCL-350 | |
| 250 | 1720 | 405 | 355 | 319 | 26 | 3 | 12 | Φ26 | 460 | 410 | 330 | 380 | M22×12 | ZTCL-450 | 3/8" |
This valve is suitable for power plant dry ash systems and bin pump discharge conveying. It can also be used in pipelines of mining, papermaking, chemical and other industries for opening and closing media containing abrasive dry powder and slurry.
Working pressure: ≤ 1.0 MPa
Applicable temperature: ≤ 425 °C
The valve adopts a packing-free sealing structure. The valve body and bonnet are made of WCB cast steel and welded with seamless steel pipes. Graphite packing is used as the sealing material. This valve features good sealing performance, strong wear resistance, low starting load, no ash accumulation, and long service life.
PN 1.0MPa
| Type | Nominal Diameter (DN) | L | D | D1 | D2 | b | Z-Φd | H |
|---|---|---|---|---|---|---|---|---|
| Z644Y-10C | 50 | 229 | 160 | 125 | 100 | 16 | 4-Φ18 | 480 |
| 65 | 229 | 180 | 145 | 120 | 18 | 4-Φ18 | 500 | |
| 80 | 255 | 195 | 160 | 135 | 20 | 4-Φ18 | 630 | |
| 100 | 298 | 215 | 180 | 155 | 20 | 8-Φ18 | 690 | |
| 125 | 310 | 245 | 210 | 185 | 22 | 8-Φ18 | 720 | |
| 150 | 360 | 280 | 240 | 210 | 24 | 8-Φ23 | 810 | |
| 200 | 380 | 335 | 295 | 265 | 26 | 8-Φ23 | 950 | |
| 250 | 450 | 405 | 350 | 320 | 30 | 12-Φ23 | 1180 | |
| 300 | 500 | 460 | 400 | 368 | 30 | 12-Φ23 | 1390 |
Step 1: Order and Design
Confirm the working conditions, material, size, pressure rating, and connection type of the discharge valve according to customer requirements. Then prepare the production drawing, technical parameters, and machining plan.
Step 2: Forging & Casting
Select suitable raw materials for the body, bonnet, and internal parts of the discharge valve. Main pressure-bearing parts are produced by casting or forging to ensure sufficient strength, sealing performance, and corrosion resistance.
Step 3: Machining
Carry out precision machining on the valve body, flange, stem, sealing surface, and other key parts of the discharge valve. This step includes turning, drilling, milling, threading, and surface finishing to meet dimensional and assembly requirements.
Step 4: Assembly
Assemble all finished components of the discharge valve, including body, actuator, stem, plug, seal parts, and fasteners. During assembly, special attention is paid to alignment, sealing contact, and smooth operation.
Step 5: Testing & Quality Assurance
Each discharge valve must undergo pressure test, sealing test, action test, and appearance inspection. Quality control ensures the valve meets performance standards and customer specifications before delivery.
Step 6: Painting and Finishing
After final inspection, clean the valve surface, apply anti-rust treatment, and complete painting, marking, and packaging. This ensures the product has good protection and a neat final appearance.
It is primarily used in the chemical, petroleum, metallurgical, pharmaceutical, and food processing industries.
These valves are widely used in:
Oil and Gas
Chemical Processing
Power Plants
Water Treatment
Metallurgy and Mining
Agriculture and Irrigation
Superior Quality
Our valves are manufactured using premium materials and undergo rigorous quality testing to ensure reliable performance in demanding industrial applications.
Advanced Technology
Equipped with state-of-the-art CNC machining centers and precision manufacturing equipment, we deliver valves with exceptional accuracy and consistency.
Competitive Pricing
Through optimized manufacturing processes and bulk material procurement, we offer high-quality valves at competitive prices without compromising on quality.
Expert Support
Our experienced technical team provides comprehensive support from product selection to after-sales service, ensuring optimal valve performance for your specific application.
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