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Home /Products/Pneumatic Control Valves/Samson 3730 OEM Smart Valve Positioner HART Digital Pneumatic Actuator Controller Oil Gas Water Treatment System

Samson 3730 OEM Smart Valve Positioner HART Digital Pneumatic Actuator Controller Oil Gas Water Treatment System

1
MOQ
US $1750.00 - 1950.00/ Set
Price
Samson 3730 OEM Smart Valve Positioner HART Digital Pneumatic Actuator Controller Oil Gas Water Treatment System
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Product Type: Electro Pneumatic Positioner
Input Signal: 4 -20mA Two-wire
Supply Air Pressure: 1.4-7 Bar
Housing Material: Cast Aluminum
Protection Grade: IP66
Highlight:

Samson 3730 OEM valve positioner

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HART digital pneumatic actuator

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oil gas water treatment valve
Basic Infomation
Place of Origin: China
Brand Name: Samson
Model Number: 3730
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
Samson Type 3730 Electropneumatic Positioner Product Description
Product Overview
  1. Microprocessor-controlled positioner for single/double acting pneumatic linear & rotary actuators
  2. Multi-variant lineup: 3730-1 (basic), 3730-3 (HART), 3730-4 (PROFIBUS-PA), 3730-5 (Foundation Fieldbus)
  3. Built-in EXPERTplus valve diagnostics, one-touch auto initialization, reversible control direction
Technical Specifications
Item Official Parameter
Input Signal 4–20mA two-wire, reverse polarity protected
Supply Air 1.4–7 bar, compliant with ISO 8573-1
Linear Travel 3.6–200 mm (IEC 60534-6 NAMUR mount)
Rotary Angle 24–100° (VDI/VDE 3845 rotary mount)
Housing Material Die-cast aluminum, optional stainless steel
Protection Class IP66 / NEMA 4X
Control Hysteresis ≤ 1%
Unit Weight Approx. 1.0 kg
Application Industry
  1. Chemical & Petrochemical: Process flow throttling and control loop valve regulation
  2. Oil & Gas: Pipeline and refining valve control with digital bus monitoring
  3. Power Generation: Steam and water circuit control valve precise positioning
Common Problems & Solutions
  1. Issue: No response to control signal

    Solution: Check 4–20mA wiring integrity and 1.4–7 bar supply air

  2. Issue: Position drift / accuracy deviation

    Solution: Run auto-initialization, re-secure feedback linkage

  3. Issue: Slow actuator movement

    Solution: Clean air filter element, verify air quality meets ISO 8573-1

Replacement Models
  1. TROVIS 3730 Series: SAMSON official direct successor for 3730 product line.
  2. Samson Type 3731: Upgraded positioner with enhanced safety and diagnostics
  3. Samson Type 3725: Cost-effective analog alternative for basic control loops
Why Buy From Us
  1. 100% genuine SAMSON original products with full factory quality certificates
  2. Ready stock for standard variants, covering basic, HART and explosion-proof versions
  3. Professional pre-sales 选型 matching and after-sales technical support
Stock & Delivery Time
  1. Standard models (3730-1 / 3730-3): In stock, dispatch within 3–8 working days
  2. Explosion-proof and stainless steel versions: 7–15 working days lead time
  3. Bulk orders ≥10 units: Negotiated priority delivery and packaging service
RFQ Form
  1. Full model code (e.g. 3730-31001000400000000)
  2. Configuration requirements: communication protocol, Ex protection, housing material
  3. Order quantity and target delivery deadline
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

L
leyla kh
United Arab Emirates Sep 12.2025
Helpful (10)
We purchased 20 units of valve positioners for a refinery project in UAE. Delivery was fast and technical support was very professional.
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:

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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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