Stainless Steel 2/2-Way Pneumatic Valve
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S22HD Series
- Direct Acting, Double Acting
- Port Size: 1/8"–2"
- Fluid Temperature: -5°C to 80°C (120℃ optional)
- Operating Pressure: 0–3.0MPa
- Media: air, water, oil, gas, steam
S22HD series is a safety-type pneumatic control valve specifically designed for hazardous environments. The stainless steel body offers multiple pressure ratings within a compact and durable structure. By adopting pneumatic control actuation, it completely eliminates the risk of electrical ignition. The pneumatic valve underwent precision machining and multi-layer sealing technology, ensuring high reliability and a long service life even under harsh conditions.
Features
- Valve body available in 304 or 316 stainless steel, providing superior resistance against acids, alkalis, and high temperatures
- Offers three pressure range options for precise system matching: 0-10 bar, 0-20 bar, and 0-30 bar
- Compact structural designs allow installation in confined spaces without compromising flow rate or response speed
- Advanced sealing system prevents fluid intrusion and supports multiple sealing materials (e.g., NBR and PTFE) for different media
- Designed with a simple and reliable structure, for easy maintenance, long lifespan, and suitable for long-term continuous operation
Applications
This pneumatic valve is engineered for explosion-proof and environmental resistance standards. It is suitable for hazardous environments containing flammable or explosive media, such as:
- Oil and gas equipment
- Chemical plants
- Mining machinery
- Fuel handling systems
- LNG stations
- Petrochemical facilities
Dimensions (mm)
| Port Size | A | B | C | D | E | M |
| 1/4" (1/8") | 98 | 45 | 28 | 24 | 1/4" (1/8") | 1/8" |
| 3/8" | 98 | 45 | 28 | 24 | 3/8" | 1/8" |
| 1/2" | 108 | 55 | 32 | 27 | 1/2" | 1/8" |
| 3/4" | 112 | 65 | 32 | 33 | 3/4" | 1/8" |
| 1" | 136 | 75 | 38 | 42 | 1" | 1/8" |
| 1"-1/4" | 156 | 85 | 55 | 49 | 1-1/4" | 1/8" |
| 1"-1/2" | 167 | 99 | 55 | 57 | 1-1/2" | 1/8" |
| 2" | 192 | 115 | 68 | 68 | 2" | 1/8" |
Specifications
| Category | | ||
| Mode of operation | Direct acting | Port size | 1/8"–2" |
| Series | S22HD | Function | Double acting / normally closed (NC) |
| Body material | SUS304 (316 optional) | Wiring | None |
| Control method | Pneumatic control | Protection level | IP65 |
| Operating pressure | 0–3.0MPa | Mounting | Bracket required |
| Sealing material | NBR, PTFE | Recommended installation method | Horizontally |
| Fluid temperature | -5°C to 80°C (120℃ optional) | Thread options | BSP, NPT thread |
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