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

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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
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

M
Madiyar serikov
Kazakhstan Feb 3.2026
Great experience with this supplier! Very professional, quick to respond, and clear in communication. The prices were fair, and delivery was even faster than expected. Highly recommend!
A
Anggoro Fikri,Indonesia
Indonesia Jul 4.2025
Just wanted to say thanks for the smooth service. Your team knows the products inside out, replies are always quick, and shipments arrive on time. Makes working with you easy.
E
edward makara
South Africa May 3.2024
great quality
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Get in touch with us
Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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