Product Inquiry：137-7170-5679
Main Features
· Stable valve plug structure with frictionless flat sealing, ensuring long‑term stability. Unique anti‑erosion design extends service life, with laboratory test life reaching 1,000,000 cycles.
· Low flow resistance valve body, optimized via computer‑aided design technology.
· Self‑tightening packing seal with low friction coefficient and reliable sealing performance.
· Supports on‑line maintenance.
· Local valve position indication and remote position signal feedback.
· Enables remote control.
■ Technical Specifications
| Parameter Category | Specific Parameters | Unit / Description | Typical Value / Range Description |
| Basic Specification | Nominal Diameter (DN) | mm | Generally DN50 ~ DN300, matched according to process pipeline size. |
| Nominal Pressure (PN) | MPa / Class | Commonly PN1.6 ~ PN10.0 (Class 150 ~ 600), corresponding to different pressure classes. | |
| Performance Index | Leakage Class | - | Generally required to meet ANSI/FCI 70-0 Class Ⅵ (bubble-tight) or Class Ⅴ, achieving near-zero leakage. |
| Opening & Closing Time | second | 1 ~ 3 seconds (adjustable), fast response ensures process cycle stability. | |
| Service Life | million cycles | ≥ 500,000 ~ 1,000,000 trouble-free cycles, meeting high reliability requirements. | |
| Flow Coefficient (Kv/Cv) | m³/h / - | Determined by nominal diameter and design, reflecting flow capacity. | |
| Pressure Drop | kPa | As low as possible when fully open (typically < 20 kPa) to reduce system energy consumption. | |
| Drive & Control | Actuator Type | - | Mainly pneumatic double-acting / single-acting, electro-hydraulic actuation. |
| Air Supply Pressure | MPa | 0.4 ~ 0.7 MPa (standard pneumatic supply). | |
| Control Signal | - | 4-20mA analog feedback + 24VDC switch signal, interlocked with PLC/DCS. | |
| Positioning Accuracy | % | ±0.5 ~ ±1.0%, ensuring precise opening control. | |
| Material & Design | Valve Body Material | - | CF8/CF8M (304/316 stainless steel), WCB carbon steel, or special alloys. |
| Valve Plug / Seat Material | - | Hardened stainless steel (e.g. 17-4PH), Stellite alloy, wear and erosion resistant. | |
| Sealing Material | - | Metal hard seal + flexible graphite / PTFE, high temperature and high pressure resistant. | |
| Connection Type | - | Flanged (RF/RTJ), wafer type, conforming to ANSI / GB and other standards. | |
| Environment & Safety | Explosion-proof Class | - | Ex d IIC T4 (for explosive atmospheres). |
| Ingress Protection (IP) Rating | IP | IP65/IP67, dustproof and waterproof. | |
| Operating Temperature | ℃ | -40 ~ +200℃ (standard type), high temperature type up to above 400℃. | |
| Suitable Medium | - | Hydrogen, carbon monoxide, natural gas, etc., may contain trace corrosive components. |