Flowserve Logix 520MD Plus Digital HART Positioner 4 20mA Control Valve Actuator Oil Gas Chemical Power
Price:
US $1800.00 - 1900.00/ Set
MOQ:
1
Delivery Time:
4-6 weeks
Brand:
Flowserve
Product Description
Flowserve Logix 520MD Plus Digital HART Valve Positioner
Product Overview
- Adopts advanced piezoelectric technology with 4–20mA two-wire HART 5/6/7 communication for valve actuator control.
- Built-in over 130 valve diagnostic alarms, supporting ValveSight DTM software for real equipment health monitoring.
- Supports on-site quick auto-calibration and local jog operation without handheld communicator.
Technical Specifications
| Category | Official Standard Parameters |
|---|---|
| Input Signal | 4–20mA DC, HART protocol; loop voltage ≥10VDC, max 500Ω load |
| Air Supply | 1.5–6.2 bar; air quality meets ISA 7.0.01 standard. |
| Control Performance | Linearity <±1.0%; resolution <0.1%; fast startup within 1 second |
| Environment | Standard temp: -20℃~+80℃; IP67 housing; ATEX / FM intrinsically safe certification |
| Software & Hardware | Local LCD & LED indicator; single/double acting actuator compatible; 10-year service life |
Application Industry
- Oil & gas upstream/downstream pipelines for pneumatic regulating valve automatic control
- Chemical & petrochemical plants for corrosive medium flow adjustment valves
- Thermal power station boiler and steam pipeline control valve matching equipment
Common Problems & Solutions
- Control loop oscillation: Reduce proportional gain, clean internal spool valve and filter air supply.
- Position feedback failure: Check linkage connection, execute full stroke quick calibration.
- HART communication loss: Verify loop voltage and wiring, restart device after power cycle.
Replacement Models
- Flowserve Logix 521MD Plus / 522MD Plus high-end upgraded positioners
- Flowserve Logix 3200MD series double-acting digital HART positioner
- Masoneilan SVI2 AP universal HART valve positioner cross-brand substitute
Why Buy From Us
- Supply brand-new original Flowserve complete sets with factory test & explosion-proof certificates.
- Provide free calibration guidance and ValveSight DTM software operation training.
- 12-month official warranty with global after-sales technical support service.
Stock & Delivery Time
- Standard non-explosion Logix 520MD Plus models in stock, ship within 3–7 working days.
- Custom intrinsically safe ATEX/FM versions take 15–20 working days for production.
- Complete export customs documents provided for sea & air global logistics.
RFQ Form
- Specify explosion-proof grade and single/double acting actuator matching requirement.
- Confirm valve stroke range and working temperature environment parameters.
- Inform target order quantity to get accurate FOB USD tiered unit price.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xiangjing (Shanghai) M&E Technology Co., Ltd
Location
No.6 Building,No.98 Lane, No.1 Fulian Road, Baoshan District, Shanghai, China
Contact Person
Edward Zhao