Hengda Safe, automated and reliable Increased Safety Motor Pre-Purging Control Device Petrochemical
SUMEC INTERNATIONAL TECHNOLOGY CO.,LTD
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Hengda Safe, automated and reliable Increased Safety Motor Pre-Purging Control Device Petrochemical
SUMEC INTERNATIONAL TECHNOLOGY CO.,LTDThe supplier hasn’t listed a price. We can get their current prices and MOQ.
Verify from $29 · written report in 3 business days · 100% refund if not satisfied
About this product
- Materials: See figure
- Size: See Image
- Color: See figure
- Phase: Other
- Power: Other
- Rotating shaft: Other
- Exports to: Mainland China, Africa, Middle East, Southeast Asia, South Asia, Central Asia, USA and Canada, Latin America, Russia, EU, Other European Countries, Japan and South Korea, Hong Kong China, Macao China and Taiwan China, Others
About this product
- Materials: See figure
- Size: See Image
- Color: See figure
- Phase: Other
- Power: Other
- Rotating shaft: Other
- Exports to: Mainland China, Africa, Middle East, Southeast Asia, South Asia, Central Asia, USA and Canada, Latin America, Russia, EU, Other European Countries, Japan and South Korea, Hong Kong China, Macao China and Taiwan China, Others
Product details
| Materials | See figure |
|---|---|
| Size | See Image |
| Color | See figure |
| Phase | Other |
| Power | Other |
| Rotating shaft | Other |
| Stress wayof blade | Other |
| Numberof blade | Other |
| Certification | Other |
| Output type | Other |
Product details
| Materials | See figure |
|---|---|
| Size | See Image |
| Color | See figure |
| Phase | Other |
| Power | Other |
| Rotating shaft | Other |
| Stress wayof blade | Other |
| Numberof blade | Other |
| Certification | Other |
| Output type | Other |
From the supplier
ZCHDE Pre-Purge Device ensures safe motor startup in hazardous areas with explosive gases (Groups IIA, IIB, IIC). It is widely used in petrochemical plants, coal chemical facilities, offshore platforms, and underground mining, providing automated purging for increased safety motors on critical equipment such as blowers and pumps. ZCHDE utilizes pneumatic logic control and two-stage filtration to achieve intrinsic safety without electrical power. Its flow-interlocked purge initiation ensures thorough cavity gas replacement, while the integrated pressure relief module maintains operational safety. Supporting remote monitoring and compatible with air or inert gas sources, the system operates reliably from -20 ℃ to +60 ℃ and complies with Chinese National Standard GB/T 3836 (Ex db eb mb IIC T4 Gb).
Your Benefits
Compliant & Asset-Safe Operation
ZCHDE complies with Chinese and international standards, performing thorough and effective gas purging prior to motor start-up. This ensures operational compliance in explosive atmospheres, mitigates safety risks, and safeguards high-value Increased Safety (Ex e) motors.
Reliable Design, Lower Operating & Maintenance Costs
The core control logic uses pneumatic controls, and all field indicators are pneumatic, minimizing electrical failure risks. With dual-stage air filtration (50μm and 5μm) and pressure regulation, the system ensures long-term stability of control operations.
Automated Process & Safety Interlock, Minimizing Human Error
Once activated, the purge sequence runs automatically. The timer starts continuous counting only when the purge flow reaches the minimum required rate. A mandatory safety interlock prevents erroneous start signals during insufficient purging.
Remote Centralized Management for Improved Operational Efficiency
The unit is equipped with an explosion-proof "Ex d IIC" switch and corresponding electrical signals connected to the Increased Safety terminal box. This allows monitoring and start-up operations from a remote control room, optimizing human resource allocation.
From the supplier
ZCHDE Pre-Purge Device ensures safe motor startup in hazardous areas with explosive gases (Groups IIA, IIB, IIC). It is widely used in petrochemical plants, coal chemical facilities, offshore platforms, and underground mining, providing automated purging for increased safety motors on critical equipment such as blowers and pumps. ZCHDE utilizes pneumatic logic control and two-stage filtration to achieve intrinsic safety without electrical power. Its flow-interlocked purge initiation ensures thorough cavity gas replacement, while the integrated pressure relief module maintains operational safety. Supporting remote monitoring and compatible with air or inert gas sources, the system operates reliably from -20 ℃ to +60 ℃ and complies with Chinese National Standard GB/T 3836 (Ex db eb mb IIC T4 Gb).
Your Benefits
Compliant & Asset-Safe Operation
ZCHDE complies with Chinese and international standards, performing thorough and effective gas purging prior to motor start-up. This ensures operational compliance in explosive atmospheres, mitigates safety risks, and safeguards high-value Increased Safety (Ex e) motors.
Reliable Design, Lower Operating & Maintenance Costs
The core control logic uses pneumatic controls, and all field indicators are pneumatic, minimizing electrical failure risks. With dual-stage air filtration (50μm and 5μm) and pressure regulation, the system ensures long-term stability of control operations.
Automated Process & Safety Interlock, Minimizing Human Error
Once activated, the purge sequence runs automatically. The timer starts continuous counting only when the purge flow reaches the minimum required rate. A mandatory safety interlock prevents erroneous start signals during insufficient purging.
Remote Centralized Management for Improved Operational Efficiency
The unit is equipped with an explosion-proof "Ex d IIC" switch and corresponding electrical signals connected to the Increased Safety terminal box. This allows monitoring and start-up operations from a remote control room, optimizing human resource allocation.
About the supplier
- ✓Exhibited at 2 recent Canton Fairs
- ✓Foreign Trade Company
- ✓Founded 1999
- ✓1 certificate on file
Manufacturing exhibitors show in Phase 1 of the Canton Fair, 15 to 19 October 2026.
- Exhibited at 2 recent Canton Fairs
- Foreign Trade Company
- Founded 1999
- 1 certificate on file
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