| Input Signal: | 4-20 Ma |
|---|---|
| Customized: | OEM |
| Enclosure Rating: | IP66/IP67 |
|
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| Category | Parameter | Specification |
|---|---|---|
| General | Model Series | YT-3300 (Standard) / YT-3300Ex (Explosion-proof) |
| Manufacturer | Rotork | |
| Type | Smart electro-pneumatic positioner | |
| Electrical | Input Signal | 4-20 mA DC (2-wire) with HART 7 protocol |
| Power Consumption | 3.8 mA @ 20 mA signal | |
| Communication | HART/DE protocol | |
| Mechanical | Housing Material | Die-cast aluminum with epoxy coating |
| Mounting Standard | IEC 60534-6 | |
| Protection Rating | IP66 (NEMA 4X) | |
| Pneumatic | Supply Pressure Range | 1.4-7 bar (20-100 psi) |
| Air Consumption | 0.15 Nm³/h @ 6 bar supply | |
| Output Pressure | 0-100% of supply pressure | |
| Performance | Positioning Accuracy | ±0.5% of span (IEC 60534-8-1 Class 1) |
| Repeatability | ±0.1% of span | |
| Response Time | 1 sec (for 90% stroke) | |
| Environmental | Operating Temperature | -40°C to +80°C |
| Vibration Resistance | 2g @ 10-150 Hz | |
| Technical Features | Sensor Technology | Non-contact magneto-resistive sensing |
| Pilot Stage | Dual-nozzle flapper system | |
| Control Algorithm | Adaptive PID with friction compensation | |
| Diagnostics | Self-diagnostics | Air path blockage/leak detection, travel limit alarm, sensor fault |
| Valve Characterization | Linear/Equal%/Quick-open/Custom (programmable) | |
| Certifications | Hazardous Area | ATEX, IECEx (for YT-3300Ex) |
| Safety Integrity | SIL 2 capable | |
| Reliability Data | MTBF (Oil & Gas) | >100,000 hours |
| Mean Failure Rate | <0.5% annually | |
| Main Failure Mode | Air path blockage (68% of failures) | |
| Maintenance | Service Interval | 24 months (standard conditions) |
| Critical Component Life | Nozzle/flapper assembly: ≥5 million cycles Position sensor: Infinite (non-contact) |
Display of company strength
KeRui (Weifang) Automation Equipment Co., Ltd. has maintained a cooperative relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.
We supplied the tuning fork level gauge to the Rosemount factory, and it has been well-received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.
The companies we have cooperated with:
1. Awarded "Outstanding Supplier by Yanchang Petroleum in 2008
2. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant
3. Awarded "Outstanding Supplier by Yaxing Group in 2013
4.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.
5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.
6.160 transmitters and 20 electric actuators for the Shandong Laigang Yongfeng Steel expansion project in 2019
7. In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built), equipped with 460 transmitters from our company.
8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.'s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.
9. In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.
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