Manogauge supplies explosion proof pressure gauge configurations for hazardous-area pressure monitoring. Buyers should confirm area classification, gas group, temperature class and required certification documents before ordering.
These pages cover custom OEM, China factory, explosion-proof and sanitary pressure gauge buying-intent queries, giving Googlebot a stronger internal path to rediscover and recrawl them.
ZX-15-1 · 0–40 MPa · ±1.6 / 2.5%
ZX-15-2 · 0–40 MPa · ±1.6 / 2.5%
ZX-01-R · 0–100 MPa · ±1.0 / 1.6%
ZX-03-R · 0–270 psi · ±2.5%
ZX-06-R · 0–60 MPa · ±1.6 / 2.5%
Explosion proof pressure gauges must be selected against the project jurisdiction and site classification. Do not assume ATEX, IECEx or local approval from the product name alone. Zone 1 and Zone 2 classifications are used for gas and vapour hazard environments.
Typical applications include upstream oil and gas wellhead and separator instrumentation, petrochemical reactor and pipeline monitoring, chemical plant hazardous area measurement, mining and offshore platform pressure monitoring.
Specify the hazardous area zone classification, gas group, temperature class (T-class), connection thread, pressure range, mounting direction and the exact approval documents required by your project jurisdiction.
IEC 60079 divides flammable gases and vapors into gas groups: IIA (e.g. propane, typical in petrochemical plants), IIB (e.g. ethylene, common in chemical processing) and IIC (e.g. hydrogen, acetylene — the most ignition-sensitive group). Temperature class (T1–T6) defines the maximum surface temperature the equipment may reach; T4 (135 °C) and T6 (85 °C) are common requirements in hydrogen-related hazardous locations. Confirm the required marking and document package before ordering.
Explosion proof pressure gauges in vibration-prone environments benefit from glycerin or silicone liquid fill, which damps pointer oscillation and reduces wear on the movement. Solid-front safety cases are also available for installations where an over-range rupture could direct debris toward personnel. Specify both features in the RFQ if the application involves pulsating flow, cavitation, pump-generated vibration or personnel exposure near the gauge face.
Do not select an explosion proof pressure gauge from pressure range alone. The RFQ must include area classification, gas group, T-class, ambient temperature, medium temperature, connection, wetted material and required local approval or certificate package. Final suitability for Zone 1 or Zone 2 service should be confirmed by the project engineer or safety authority before procurement.
Final configuration still depends on medium, temperature, pressure, connection and documentation requirements.
| Item | Common options | Selection note |
|---|---|---|
| Area classification | Zone 1 / Zone 2 or local hazardous-area class | The project safety document controls the required marking and certificate scope. |
| Gas group | IIA, IIB or IIC | Hydrogen and acetylene applications require stricter IIC review than typical hydrocarbon service. |
| Temperature class | T1 to T6 | Confirm both ambient temperature and medium temperature before selecting the gauge configuration. |
| Mechanical safety | Solid-front case, blow-out back, liquid fill or snubber | Use these options when overpressure, vibration, pulsation or personnel exposure is present. |
| Documents | ATEX, IECEx or local approval package by project requirement | Do not infer certification from the page; document availability must be confirmed during RFQ. |
For an ammonia refrigeration plant, the pressure gauge RFQ should identify whether the point is in a classified machinery room, the expected R717 pressure range, vibration from compressors, ambient temperature and the exact safety document required by the operator. Material compatibility and local hazardous-area rules must be reviewed before release.
Use the RFQ form when you have range, connection, quantity or drawings. Use WhatsApp when you only need a quick compatibility check before preparing the full purchase file.
ATEX is the EU directive for equipment in explosive atmospheres. IECEx is an international certification scheme accepted in many non-EU countries. Which document is required depends on the project location and safety specification, so confirm this before RFQ.
Send area classification (Zone 1 or Zone 2), gas group, temperature class, pressure range, process medium, connection thread and the exact approval documents required by the project.
Yes. Liquid-filled explosion-proof gauge configurations are used where vibration or pulsation is present alongside a hazardous area classification. Specify the fill requirement and required document package in your RFQ.
No. Pressure range is only one item. Area classification, gas group, T-class, ambient temperature, medium temperature, wetted material and required approval documents must also be confirmed.
Standard explosion-proof gauge configurations are typically available in 2–4 weeks. Projects requiring special approval documents may need additional time. Send your specification for an accurate lead-time estimate.
MOQ for standard explosion-proof gauge configurations is typically 10–50 units. Custom configurations and special document requirements may have different minimums. Send your requirements for a confirmed quantity and lead-time.
Yes. Sample units are available for evaluation. Submit your specification via the RFQ form and note that you need a sample for inspection or project approval.
Route buyer traffic into downloadable PDF guides for selection, thread standards, materials, installation, troubleshooting and OEM customization.