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China WZI Pneumatic Valve Samson 3730-31001 HART Electro Pneumatic Valve Positioner Controller

1
MOQ
US $1250.00 - 1500.00/ Set
Price
China WZI Pneumatic Valve Samson 3730-31001 HART Electro Pneumatic Valve Positioner Controller
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Communication Protocol: 4-20 MA HART
Output Signal: Pneumatic Pressure Up To 145 Psig (10 Bar)
Protection Rating: IP66/IP67
Power Supply: 24V DC
Ambient Temperature Range: -40°C To 85°C (-40°F To 185°F) Standard
Material: Aluminum Alloy Or Stainless Steel
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WZI pneumatic valve positioner

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Samson 3730-31001 valve controller

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HART electro pneumatic positioner

Basic Infomation
Place of Origin: Germany
Brand Name: Samson
Model Number: 3730-31001
Payment & Shipping Terms
Packaging Details: Cardboard box/Wooden crate
Delivery Time: 6-8 weeks
Payment Terms: T/T
Supply Ability: 2000 sets per year
Product Description
SAMSON Type 3730-3 Electro-pneumatic Valve Positioner
Product Overview

The SAMSON Type 3730-3 is a digital electropneumatic positioner with HART communication for pneumatic linear and rotary actuators. It features self-calibration, an intuitive menu with LCD display, and reliable performance in industrial environments. It is a popular choice for accurate valve positioning in process plants that need HART diagnostics without excessive complexity.

Technical Specifications
Parameter Specification
Input Signal 4–20 mA DC + HART
Supply Air Pressure 1.4–7 bar (20–105 psig)
Air Consumption Approx. 0.12 m³/h (4.2 scfh) at 1.4 bar
Stroke Linear 10–150 mm, rotary 30–100°
Hysteresis ≤ 0.3 % of span
Sensitivity ≤ 0.1 % of span
Linearity ≤ ±1.0 % of span
Ambient Temperature –20 … +80 °C (–4 … +176 °F)
Enclosure Rating IP66
Housing Material Aluminum or stainless steel
Application Industry
  • Chemical and petrochemical plants
  • Power generation
  • Oil & gas processing
  • Water and wastewater treatment
  • General industrial automation
Common Problems & Solutions
  • Problem: Slow calibration → Solution: Automatic start-up and self-calibration
  • Problem: Output drift → Solution: Simple local adjustment via pushbuttons
  • Problem: Harsh environment → Solution: IP66 enclosure and wide temperature range
Replacement Models
  • Older SAMSON 3730-2 / 3730-1 series
  • SAMSON 3761 (pneumatic version)
Why Buy From Us
  • Genuine SAMSON product with factory warranty
  • Local technical support and calibration service
  • Competitive pricing
  • Fast spare parts availability
Stock & Delivery Time
  • Standard models: 6–8 weeks typical
  • Special configurations: 6–10 weeks
RFQ Form

Please provide:

  • Actuator type (linear or rotary) and stroke
  • Required communication (HART)
  • Supply air pressure available
  • Ambient temperature range
  • Quantity & delivery timeline
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
Alex
Switzerland Dec 1.2025
great price and fast delivery
F
Firoz Kannur
United Arab Emirates May 1.2025
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
Z
zahir mustafa
United States Feb 26.2025
Happy to work with them, fast response, hope to do more business with them soon
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Get in touch with us
Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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