Description
Buy Rising Stem Knife Gate Valve PZ9 Series 0.6–1.6 MPa WCB Flanged Manual Operated
The VALVEHU PZ9 Series Rising Stem Knife Gate Valve is a high-performance industrial solution engineered for dependable shut-off in systems handling pulp, sewage, coal slurry, and similar abrasive or viscous media. Designed with a rising stem structure, this valve offers visual indication of valve position and enhanced operational control.
This flanged valve complies with PN10 standards and supports pressure ratings from 0.6 MPa to 1.6 MPa, making it adaptable for medium-pressure systems across multiple industries. Depending on the application, it can be equipped with rubber sealing (≤80°C), PTFE (≤180°C), or metal-to-metal sealing (≤425°C), providing flexibility across varying temperature and media conditions.
Constructed from carbon steel or stainless steel, and featuring a corrosion-resistant stainless steel stem and gate, this valve ensures long service life and reliable performance. The actuation type includes manual handwheel for small sizes and gear-operated configurations for larger diameters up to DN2500.
The PZ9 rising stem configuration enhances reliability and maintenance efficiency compared to non-rising stem designs. The exposed stem structure allows for easy identification of valve status, ideal for process monitoring in harsh environments.
Whether for wastewater treatment, pulp processing, or solid-laden fluid applications, this rising stem knife gate valve is a trusted option. For custom configurations or professional guidance, contact the VALVEHU team in China. Our valve specialists are ready to support you in selecting the best solution for your flow control system.
Technical Specifications
- Valve Type: Rising Stem Knife Gate Valve
- Model: PZ9/93H/X/Y/F/N
- Pressure Rating: 0.6 to 1.6 MPa
- Body Material: Carbon Steel or Stainless Steel
- Stem & Gate: Stainless Steel
- Sealing Options: Rubber, PTFE, Metal-to-Metal
- Temperature Range: Up to 425°C depending on seal
- Connection: Flanged (PN10 standard)
- Size Range: DN50 to DN2500
- Operation: Manual or Gear Operated
Main Material of Valve Components
| Part | Material 1 | Material 2 |
|---|---|---|
| Valve Body, Cover | Stainless Steel, Carbon Steel | Stainless Steel |
| Valve Disc | Stainless Steel | |
| Valve Stem | Stainless Steel | |
| Sealing Area | NBR, PTFE, Stainless Steel, Hard Alloy |
Main Performance Parameters
| Nominal Pressure | PN |
|---|---|
| Shell Test | 1.5 × PN |
| Seal Test | 1.1 × PN |
| Working Temperature | Rubber Seal ≤ 80°C |
| PTFE Seal ≤ 180°C | |
| Metal Seal ≤ 425°C | |
| Applicable Media | Paper pulp, sewage, coal gas, etc. |
Main Connection Dimensions (PN10 Standard)(Unit: mm)
| DN | L | D | D1 | D2 | D0 | N–Th | d | H1 |
|---|---|---|---|---|---|---|---|---|
| 50 | 48 | 165 | 125 | 99 | 180 | 4–M16 | Ø18 | 292 |
| 65 | 48 | 185 | 145 | 118 | 200 | 4–M16 | Ø18 | 320 |
| 80 | 51 | 200 | 160 | 132 | 200 | 8–M16 | Ø18 | 348 |
| 100 | 51 | 220 | 180 | 156 | 240 | 8–M16 | Ø18 | 395 |
| 125 | 57 | 250 | 210 | 184 | 260 | 8–M16 | Ø18 | 450 |
| 150 | 57 | 285 | 240 | 211 | 280 | 8–M20 | Ø23 | 504 |
| 200 | 70 | 340 | 295 | 266 | 300 | 8–M20 | Ø23 | 617 |
| 250 | 70 | 395 | 350 | 319 | 320 | 12–M20 | Ø23 | 758 |
| 300 | 76 | 445 | 400 | 370 | 350 | 12–M20 | Ø23 | 857 |
| 350 | 76 | 505 | 460 | 429 | 400 | 16–M20 | Ø23 | 946 |
| 400 | 89 | 565 | 515 | 480 | 450 | 16–M24 | Ø27 | 1023 |
| 450 | 89 | 615 | 565 | 530 | 500 | 20–M24 | Ø27 | 1091 |
| 500 | 114 | 670 | 620 | 582 | 500 | 20–M24 | Ø27 | 1148 |
| 550 | 114 | 725 | 680 | 638 | – | 20–M27 | Ø30 | Gear |
| 600 | 114 | 780 | 725 | 682 | – | 20–M27 | Ø30 | Gear |
| 700 | 127 | 895 | 840 | 794 | – | 24–M27 | Ø30 | Gear |
| 800 | 127 | 1015 | 950 | 901 | – | 24–M30 | Ø30 | Gear |
| 900 | 127 | 1115 | 1050 | 1001 | – | 28–M30 | Ø30 | Gear |
| 1000 | 149 | 1230 | 1160 | 1112 | – | 28–M33 | Ø30 | Gear |
| 1100 | 149 | 1340 | 1260 | 1220 | – | 28–M33 | Ø30 | Gear |
| 1200 | 156 | 1455 | 1380 | 1328 | – | 32–M36 | Ø30 | Gear |
| 1350 | 171 | 1630 | 1540 | 1480 | – | 36–M39 | Ø30 | Gear |
| 1400 | 171 | 1675 | 1590 | 1530 | – | 36–M39 | Ø30 | Gear |
| 1500 | 198 | 1795 | 1705 | 1640 | – | 40–M39 | Ø30 | Gear |
| 1600 | 198 | 1915 | 1820 | 1750 | – | 40–M45 | Ø30 | Gear |
| 1800 | 219 | 2115 | 2020 | 1950 | – | 44–M45 | Ø30 | Gear |
| 2000 | 250 | 2325 | 2230 | 2150 | – | 48–M45 | Ø30 | Gear |
FAQ
What makes rising stem knife gate valves suitable for abrasive media?
Their sturdy design and visible operation make them ideal for slurry, pulp, and solids-laden fluids.
Can this valve be used in high-temperature applications?
Yes, with metal sealing, it operates safely up to 425°C.
What are the benefits of gear operation in large sizes?
Gear-operated valves reduce manual effort and ensure smooth operation in large diameters.
Is this valve corrosion-resistant?
Yes, stainless steel internal parts ensure corrosion protection in aggressive environments.
What industries commonly use this valve model?
It’s widely used in wastewater treatment, pulp and paper, mining, and chemical plants.
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