Electric Solenoid Valves
DC12V Wired Explosion-Proof LPG Gas Cylinder Manipulator | Gas Shut-off Valve
- Place Of Origin : Shenzhen, Guangdong
- Model : SR-512
- Feature:Safe Gas Supply Control :
- Material : brass
- The warranty time : 2 yesrs
- Product Details

✅ DC12V wired linkage design, stable signal without wireless signal interference
✅ CNEX certified & ExiIIC T4 Gc explosion-proof standard for flammable LPG environment
✅ Solid brass valve body + explosion-proof ABS plastic shell for long service life
✅ 6~10 seconds fast valve opening & closing for emergency gas cut-off
✅ Low power consumption: rated power 1.2W, operating current 10mA~65mA
✅ Perfect for home kitchens, restaurants, factories and gas safety engineering projects
✅ Realize gas interlock linkage with matched gas leakage alarm sensors
Engineering Project Advantages
✅Hardwired connection eliminates signal loss risk, reliable for dense-equipment commercial kitchens and factories
✅ Manufactured following GB/T 3836 explosion-proof standards and CNEX certification specifications
✅ Rapid gas isolation effectively avoids fire, explosion and gas poisoning risks after leakage
✅ Support bulk wholesale, available to match SUMRING series explosion-proof gas detectors
✅ Wide operating temperature range (-20℃ ~ +40℃), adapts to most indoor installation environments
✅Low energy consumption reduces long-term operation and maintenance costs for end users
Working Principle of SR-512 Gas Cylinder Manipulator
- The matched gas leakage detector continuously monitors ambient LPG concentration;
- When gas leakage exceeds threshold value, the detector sends alarm signal through wired circuit;
- SR-512 manipulator receives trigger signal and rotates to shut off LPG cylinder gas supply within 6~10s;
- Manual reset can be carried out after eliminating gas leakage hazards on site.
Installation Tip: Install the manipulator on the hand valve of LPG cylinder, in front of pressure reducing valve. Complete wired connection between manipulator and gas detector.

SR-512 Technical Specifications
| Item | Parameter |
|---|---|
| Model Number | SR-512 |
| Alias | Gas Manipulator, LPG Cylinder Gas Manipulator, Automatic Gas Shut-off Valve, Gas Valve Actuator |
| Main Material | Brass valve body, explosion-proof ABS plastic shell |
| Operating Voltage | DC12V |
| Rated Power | 1.2W |
| Valve Opening Time | 6~10s |
| Valve Closing Time | 6~10s |
| Operating Current | 10mA~65mA |
| Explosion-proof Mark | ExiIIC T4 Gc |
| Certification Standard | CNEX25.1955X, GB/T 3836.1-2021, GB/T 3836.4-2021 |
| Operating Temperature | -20℃ ~ +40℃ |
| Alarm Function | Automatically cut pipeline gas after receiving gas leakage signal |
| Linkage Mode | Wired linkage alarm mode |
Application Scenarios
- Household kitchen liquefied gas cylinder safety protection
- Commercial kitchens of restaurants, chain catering stores and staff canteens
- Gas safety renovation and supporting projects for manufacturing factories
- Gas safety projects undertaken by North American engineering contractors and system integrators
- Bulk procurement for gas safety equipment distributors & importers

Frequently Asked Questions About SR-512
Q1: Does SR-512 come with gas leakage alarm detector?
A: The gas detector is sold separately. We can supply matched explosion-proof gas sensors for complete system set.
Q2: What power supply does SR-512 require?
A: It requires stable DC12V power supply with rated power of 1.2W.
Q3: Can this manipulator be installed in factory gas workshops?
A: Yes. With ExiIIC T4 Gc explosion-proof certification, it is suitable for factory flammable gas environments.
Q4: What is the difference between SR-512 and SR-512R?
A: SR-512 adopts DC12V wired linkage; SR-512R is battery-powered RF433 wireless linkage version. You can choose according to on-site wiring conditions.

Shenzhen SUMRING technology Co.,Ltd is complete fire alarm solution factory over 15 years, products cover fire alarm control panel(fire detection system), fire detector, photoelectric smoke detector, heat detector, fire alarm bell, strobe siren, manual call point, LPG/natural gas detector, Carbon monoxide alarm, PIR detector(Motion detector) home security products etc. SUMRING owns trademarks “SUMRING” and the company implemented ISO9001 standard management.

Get Wholesale Quotation for SR-512 Gas Cylinder Manipulator
If you are an importer, distributor or engineering contractor engaged in North American commercial kitchen and gas safety projects, send us your inquiry freely. Please provide order quantity, application site and special requirements, we will offer competitive bulk price and matched gas safety solution. Sample testing orders are supported before mass purchase.
Contact Us: WhatsApp: 0086 13678999834
Email: info@sumring.com

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