The ZMHS Pneumatic Diaphragm High-Pressure Angular Control Valve is a special type of valve designed for high-pressure systems. When connected to pneumatic or electric regulating instruments (with an electric-air converter), the pneumatic diaphragm high-pressure angular control valve is widely used in industries such as petrochemicals, power stations, and light industry for automatic process regulation and remote control. The valve adjusts the flow energy section by changing the signal pressure, thereby altering the medium flow rate and completing the regulation of required parameters (such as pressure, flow rate, temperature, and level).

Pneumatic Diaphragm High Pressure Angle Type Control Valve - Technical Specifications
| Nominal Bore Diameter (mm) | 6 | 10 | 15 | 25 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bore Diameter (mm) | 3 | 4 | 6 | 4 | 5 | 7 | 8 | 10 | 6 | 7 | 8 | 10 | 12 | 7 | 8 | 10 | 12 | 16 | 20 |
| Flow coefficient Kv | 0.04 | 0.1 | / | 0.1 | 0.4 | / | / | / | 0.4 | / | / | / | / | 1 | 1.6 | 2.5 | 4 | 6.3 | 8 |
| / | 0.16 | 0.4 | 0.16 | / | 1 | 1.6 | 2.5 | 0.63 | 1 | 1.6 | 2.5 | 4 | / | / | / | / | / | / | |
| 0.063 | 0.25 | 0.25 | 0.63 | / | / | / | / | / | / | / | / | / | / | / | / | / | / | ||
| Nominal Bore Diameter (mm) | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||||||||||
| Bore diameter (mm) | 16 | 20 | 30 | 20 | 38 | 30 | 50 | 38 | 65 | 50 | 80 | 65 | 100 | 65 | 125 | 100 | 150 | 125 | 200 |
| Flow coefficient | 6.3 | 8 | 16 | 8 | 25 | 16 | 40 | 25 | 63 | 40 | 100 | 63 | 160 | 100 | 250 | 160 | 400 | 250 | 600 |
| Adjustable Range | When Kv value is less than 18, r=20:1; when Kv value is greater than 18, R=30:1. | ||||||||||||||||||
| Nominal Pressure | 16、22、32MPa | ||||||||||||||||||
| Valve Core Type | Sleeve-guided single-seat plug valve core | ||||||||||||||||||
| Flow characteristics | Straight line | ||||||||||||||||||
| Functionality | Pneumatically Open, Pneumatically Closed | ||||||||||||||||||
| Operating Temperature | Standard Type: -40~230℃; Finned Type: 230~450℃; Special Order: 450~600℃ | ||||||||||||||||||
| Flange Standard | Meets JB/T2769-92 standards, available for production according to orders based on ANSI, JIS, DIN, etc. | ||||||||||||||||||
| Actuating Mechanism | ZHA/B Type Multi-Spring Pneumatic Diaphragm Actuator | ||||||||||||||||||
| Available accessories | Locators, solenoid valves, air filter-regulating valves, limit switches, valve position feedback devices, emergency operation devices, handwheels, etc. | ||||||||||||||||||
Pneumatic diaphragm high-pressure angle type regulating valve - Allows pressure difference
| Nominal Bore Size DN(mm) | PN320 | 6 | 10 | 15 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PN220 | |||||||||||||||||||||||||||||||||
| Bore Diameter (mm) | 3 | 4 | 6 | 4 | 6 | 7 | 8 | 10 | 6 | 7 | 8 | 10 | 12 | 7 | 8 | 10 | 12 | 16 | 20 | 16 | 20 | 30 | 20 | 38 | 30 | 50 | 38 | 65 | 50 | 80 | 65 | 100 | |
| Input Signal kgf/cm2 (0.2~0.1) | 320 | 200 | 320 | 200 | 80 | 320 | 200 | 80 | 40 | 20 | 80 | 40 | 16 | 4 | 4 | 16 | 4 | 6 | 16 | 25 | 1 | 16 | 0.6 | ||||||||||
| 220 | 160 | 220 | 160 | 64 | 40 | 140 | 64 | 25 | 64 | 16 | 25 | 8 | 20 | 6 | 10 | 4 | 6 | 2.5 | |||||||||||||||
| Input Signal kgf/cm2 (0.6~1.8) | 320 | 320 | 160 | 100 | 320 | 160 | 64 | 160 | 35 | 64 | 20 | 55 | 16 | 30 | 10 | 16 | 6 | ||||||||||||||||
| 320 | 220 | 200 | 110 | 220 | 200 | 70 | 200 | 45 | 70 | 25 | 70 | 20 | 35 | 14 | 20 | 8 | |||||||||||||||||
Aerodynamic Diaphragm High-Pressure Angular Control Valve - Performance Specifications
| Serial Number | Project | Unit | No GPS Tracker | With GPS tracker | |
|---|---|---|---|---|---|
| 1 | Basic Error | % | ±4 | ±1 | |
| 2 | Return Difference | % | 2.5 | 1 | |
| 3 | Dead zone | % | 1.5 | 0.1 | |
| 4 | Permitted leakage amount | % | For C-value 0.01%, for C≤4.Q leak≈0 | ||
| 5 | Rated flow coefficient Kv deviation | C≤4 | % | ±15 | |
| Flow Characteristic Error | C>4 | % | ±10 | ||
Pneumatic Diaphragm High-Pressure Angular Type Control Valve - Parts Material
| Part Name | Valve body | Valve stem | Valve Core | Valve seat | Filling Material | Coiled Spring | Wavy Film |
|---|---|---|---|---|---|---|---|
| Material | 40 Carbon Steel Stainless Steel Molybdenum Disilicide | 2Cr13 Stainless Steel Molybdenum Disilicide | 2Cr13 or stacked Welded Cobalt Chrome钨 Hardened alloy | 2Cr13 or stack Welded Cobalt Chrome钨 Hardened alloy | V-shaped PTFE Ring | 60Si2Mn | Nitrile rubber Jacket lining |
Pneumatic Diaphragm High-Pressure Angle Type Regulating Valve - Product Selection
(1) Valve Body Parameters: Nominal Bore Size, Working Pressure, Process Medium, Application, Valve Body Material, and other series of parameters.
(2) Actuator Parameters: Actuator Type, Control Method, Control Signal (4-20mA, 1-5V), Operating Mode (Air-Open, Air-Closed)
Please provide as detailed technical specifications as possible, to facilitate our production and technical team in accurately selecting the right options for you. Should you have any questions, feel free to call us, and we will strive to provide you with excellent service!




