Xiangjing (Shanghai) M&E Technology Co., Ltd
| Payment Terms | T/T |
| Material | Aluminum Alloy,SS316L |
| Type | Control,pneumatic |
| Power | electric |
| Delivery Time | 5~8 weeks |
| Application | General,industrial |
| Standard | DIN,ANSI,BS,ASTM |
| Supply Ability | 2,750 units per year |
| Standard or nonstandard | Standard |
| Packaging Details | carton or wooden crate, 30 × 30 × 30 cm |
| Structure | Control,Angle stroke |
| Model Number | SVI3 |
| Brand Name | Masoneilan SVI3 |
View Detail Information
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Product Specification
| Payment Terms | T/T | Material | Aluminum Alloy,SS316L |
| Type | Control,pneumatic | Power | electric |
| Delivery Time | 5~8 weeks | Application | General,industrial |
| Standard | DIN,ANSI,BS,ASTM | Supply Ability | 2,750 units per year |
| Standard or nonstandard | Standard | Packaging Details | carton or wooden crate, 30 × 30 × 30 cm |
| Structure | Control,Angle stroke | Model Number | SVI3 |
| Brand Name | Masoneilan SVI3 | ||
| High Light | HART 7 Communication Digital Valve Positioner ，Advanced Diagnostics Valve Positioner ，IP66 Protection Pneumatic Control Valve Positioner | ||
Product Overview
The Masoneilan SVI3 represents the third generation of digital valve positioners, using HART 7 communication over a two-wire 4-20mA loop. It provides highly accurate pneumatic actuator control and incorporates advanced diagnostics for continuous valve monitoring. The non-contacting position sensor reads through the housing, so there are no mechanical wear points. The unit operates down to -55°C, making it suitable for extreme climates.
The local interface includes a high-contrast graphical display and pushbuttons rated for hazardous areas. Smart Cal enables one-button setup and calibration, cutting commissioning time. The positioner stores up to one year of diagnostic data on-board, allowing trend analysis without external tools. It integrates with major control systems via DTM and EDD support.
Steady-state air consumption is 40% lower than earlier models, and air delivery is 15% higher for faster stroking. The SVI3 includes 19 online valve diagnostics that monitor valve health while the process is running, helping predict maintenance needs before failures occur.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Masoneilan |
| Communication Protocol | HART 7 over 4-20mA |
| Input Signal | Electric |
| Data Interface | Wired |
| Diagnostics | Positioner; Advanced; Online Valve Diagnostics |
| Supply Pressure | 20 to 120 psi |
| Air Delivery | 410 SLPM @ 30psi |
| Action | Single Acting, fail safe; Rotary and linear |
| Mounting Type | Actuator Mounted |
| Operating Temperature | -55°C to +85°C |
| Housing Material | Copper-free Aluminum (ASTM A360); Optional 316SS Housing |
| Protection Rating | IP66 and NEMA 4X |
| Weight (Aluminum) | 3.3 kg (7.4 lbs) |
| Weight (Stainless Steel) | 6.26 kg (13.8 lbs) |
| Electrical Entries | Two 1/2 NPT female |
| Minimum / Maximum Current | 3.2mA / 22mA |
| Required Compliance Voltage | 9Vdc @ 20mA, 11Vdc @ 4mA |
| Optional Output | Two configurable solid-state switches (1A, 30Vdc); One 4-20mA position retransmit; One configurable digital input |
| Certifications | SIL3 Capable; ATEX, IECEx, US, Canada approvals |
| Communication Software | Masoneilan Valve Lifecycle Management (VLM); DTM and EDD support |
Application Industry
The Masoneilan SVI3 is used in power generation, refining, petrochemicals, midstream oil and gas, and upstream oil and gas. Key applications include steam turbine generators, condensers, cooling towers, reactor buildings, turbine buildings, heat recovery steam generators, balance of plant, distillation, hydroprocessing reforming, cracking, secondary blending, quenching and fractioning, charge gas compression, separation, pipeline integrity operations, dehydration, refrigeration, liquefaction, loading and shipping, regasification, and compression.
Common Problems
Smart Cal fails to complete: Check supply pressure is within 20-120 psi. Verify valve travel limits are within the rated range. Ensure the valve is not stuck or binding.
Position oscillation or cycling: Check whether stick slip is present. If position cycles are much greater than setpoint cycles, the positioner may be causing the cycling. Inspect for a handwheel blocking valve stroke, a broken stem, or disconnected position feedback components.
Communication failure with HART handheld: Verify loop resistance is adequate. Check terminal voltage meets compliance requirements (9Vdc @ 20mA, 11Vdc @ 4mA).
Low power error (LOW_POWER): Input current below 3.15 mA. Increase loop current to 4 mA for calibration and diagnostics.
TuneERR appears after autotune: Manual tuning may be required. Refer to the troubleshooting section in the instruction manual.
SelfCheckError or hardware failure: Remove power for two minutes and restart. Clear the alarm using ValVue or HART Host. If the failure persists, replace the electronics module.
Replacement Models
The Masoneilan SVI3 is the direct replacement for the SVI II AP and SVI1000. It features stainless steel mounting brackets for any valve/actuator combination and is fully backwards compatible with SVI II AP and SVI1000 mounting brackets. For SVI II AP users, the upgrade is relatively simple — existing mounting can be used, and only the air/tubing connection may need adjustment. For cross-vendor alternatives, verify actuator mounting, travel range, and communication protocol before ordering.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2015
Total Annual:
30,000,000-50,000,000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr... Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...
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