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Home /Products/Pneumatic Control Valves/Masoneilan SV II AP Advanced Performance Digital Valve Positioner SVI2-21123111

Masoneilan SV II AP Advanced Performance Digital Valve Positioner SVI2-21123111

1
MOQ
US $1780.00 - 1900.00/ Set
Price
Masoneilan SV II AP Advanced Performance Digital Valve Positioner SVI2-21123111
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Signal - Communication: HART 5 Or 7 Over 4-20mA
Diagnostics: Standard Diagnostics
Construction / Materials: Copper-free Aluminum Housing
Valve Size: 1/4NPT
Basic Infomation
Place of Origin: China
Brand Name: Masoneilan
Model Number: SV II
Payment & Shipping Terms
Packaging Details: Cardboard box/Wooden crate
Delivery Time: 4-6 weeks
Payment Terms: T/T
Supply Ability: 3000 sets per year
Product Description
Masoneilan SV II AP Advanced Performance Digital Valve Positioner SVI2-21123111
Product Overview
  1. 32-bit microprocessor-based digital valve positioner with HART 5/7 protocol over 4-20mA signal, delivering high-precision pneumatic actuator control and real-time online diagnostics.
  2. Features non-contact through-housing position sensing and built-in LCD pushbutton interface, supporting safe local configuration in certified hazardous areas without removing the enclosure.
  3. Universal modular design compatible with both Masoneilan and third-party single-acting linear/rotary valves, serving as a direct drop-in replacement for traditional analog positioners.
Technical Specifications
Parameter Specification
Input Signal 4-20mA with HART 5/7 bidirectional communication
Supply Pressure 20 – 150 psi (1.4 – 10.3 bar)
Operating Temperature -50°C to +85°C
Pneumatic Action Single-acting, fail-safe
Application Industry
  1. Oil & Gas / Petrochemical: Suitable for wellhead control, pipeline transmission and refining processes in explosive hazardous zones.
  2. Power Generation: Delivers stable flow regulation for boiler feed water, steam circulation and cooling water systems in thermal/nuclear power plants.
  3. Chemical & Pharmaceutical: Supports precise process control for corrosive media, batch production and strict safety-compliant manufacturing lines.
Common Problems & Solutions
  1. Valve position drift / calibration inaccuracy: Run auto-tune and auto-stop calibration via local LCD or HART host; verify stable supply air pressure.
  2. Slow response / blocked air vent: Clean the exhaust port to remove dust and condensate; inspect the air filter regulator for clogging.
  3. HART communication failure: Check 4-20mA loop wiring and power supply; confirm device address and cable shielding integrity.
Replacement Models
  1. SVI2-21123121: Same base configuration with additional valve position feedback signal output.
  2. SVI2-22123111: Double-acting pneumatic version with LCD display, for dual-acting actuators.
  3. SVI3 AP: Next-generation upgraded model with enhanced advanced diagnostics and wider environmental adaptability.
Why Buy From Us
  1. 100% original authentic Masoneilan products with full factory traceability and quality assurance.
  2. Professional technical team with 10+ years of industrial valve experience, providing free selection and commissioning guidance.
  3. Flexible bulk pricing and dedicated after-sales support, minimizing downtime for your on-site projects.
Stock & Delivery Time
  1. Sufficient ready stock of SVI2-21123111 in local warehouse, available for immediate dispatch upon order confirmation.
  2. Standard delivery: 3–5 working days for domestic orders; 7–15 working days for international express (DHL/FedEx/UPS).
  3. Customized export packaging (carton/wooden case) provided, with full set of shipping documents including commercial invoice and packing list.
Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

A
Amir Rezaei
United Arab Emirates Jan 6.2026
Helpful (6)
We have been cooperating for 3 years with stable supply and reliable service
F
Firoz Kannur
United Arab Emirates May 1.2025
Helpful (21)
We sourced Masoneilan SVI3 valve positioners for a refinery project in UAE. The delivery was fast and the technical support was very professional. Everything worked perfectly during commissioning
A
Anggoro Fikri
Indonesia Jan 31.2025
Helpful (2)
good quality
Tag:

rotary plug control valve

3 way pneumatic valve

pneumatic speed control valve

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Tel : +8615000725058
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edward.zhao@gongboshi.com
+8615000725058
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