Wholesale Industrial & Commercial Point-Type Combustible Gas Detector Factory for Oman

Mounting heights are governed by the relative vapor density of the target gas compared to ambient air (Air = 1.0). For Natural Gas / Methane (CH₄), which has a vapor density of approximately 0.55 (lighter than air), detectors must be installed 30 cm to 50 cm below the ceiling or highest roof point, positioned within a horizontal radius of 1.5 meters from potential leak sources (flanges, valves, or gas cooktops). Conversely, for Liquefied Petroleum Gas (LPG: Propane/Butane), which is significantly heavier than air with a density of 1.55 to 2.0, point detectors must be installed 30 cm to 50 cm above the finished floor or drainage channel surface to capture low-creeping vapor blankets before dangerous lower explosive limit concentrations accumulate.

Operating in regions like Marmul or Fahud involves ambient temperatures exceeding 50°C and direct solar radiation elevating metal enclosure surfaces past 65°C. Excessive heat typically causes zero-baseline drift and accelerates the thermal sintering of the active catalyst on catalytic pellistors. Shield detectors mitigate this through two distinct engineering provisions: first, our integrated micro-controller executes real-time active digital temperature compensation via internal thermistors, mathematically dampening baseline thermal drift. Second, we provide optional 316-grade stainless steel sunshields that lower internal sensor cavity temperatures by up to 15°C, ensuring catalytic sensors achieve their intended 3-to-5-year operational lifecycle without premature failure.

Yes. Shield fixed detectors such as the SD2100E series are equipped with industrial-standard 3-wire 4-20mA current loop outputs that integrate seamlessly into legacy Emerson, Honeywell, Yokogawa, or Siemens DCS and PLC I/O cards. Additionally, every unit provides an independent RS485 serial communication port running standard Modbus RTU protocol (supporting baud rates up to 19200 bps). This enables modern digital multi-drop topology where up to 32 point detectors can be linked over a single shielded twisted-pair cable, sending gas concentration (%LEL), fault diagnostic codes, and temperature telemetry directly into asset management SCADA consoles.

Every shipment shipped to the Sultanate of Oman is backed by a comprehensive compliance documentation dossier:

• Certificate of Origin (COO) legalized for GCC import customs.
• Ex-Proof Certification (Ex d IIC T6 Gb / Ex tb IIIC T80°C Db) verified under ATEX / IECEx standards.
• Factory Calibration Test Certificates specifying zero point, 50% LEL span verification, and sensor serial batch tracking.
• Manufacturer’s Declaration of Conformity and SIL-2 Functional Safety assessment reports.
• Technical product datasheets in dual English/Arabic format to facilitate smooth approval by Royal Oman Police Civil Defence and Ambulance Authority inspection teams.

For standard catalog models (SD2100A, SD2100E, SD2130, and JYFJS-011 valves), our baseline MOQ is flexible (typically 10 to 50 units) for commercial evaluation, with full container-load capabilities for large EPC infrastructure rollouts. Standard factory dispatch lead times are 7 to 12 working days. We utilize direct air cargo routing to Muscat International Airport (MCT) via Dubai or Doha (transit time: 3–5 days for urgent projects) and ocean container shipping directly to Port Sultan Qaboos (Muscat) or the Port of Sohar (transit time: 18–22 days from major Chinese maritime ports).

The safety linkage is engineered as a positive-action fail-closed system. When the point-type detector senses gas concentrations exceeding the programmed threshold (typically 20% or 25% LEL), its internal dry-contact relay closes, delivering a momentary DC12V or DC24V electrical pulse (≤1 second) to the JYFJS-011 solenoid coil. This triggers an internal mechanical latch, instantly slamming the valve disc closed via high-force spring pressure in less than 0.3 seconds. To prevent catastrophic re-ignition, the valve cannot be reopened electrically; it requires certified safety personnel to physically visit the pipe manifold, investigate the leak source, and manually pull the red reset pin once safe atmospheric conditions are confirmed.