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Home /Products/Pneumatic Control Valves/New Samson Steam Control Valve Samson Electropneumatic Valve Positioner 3725 3730-3 3730-5 Valve Parts Supplier

New Samson Steam Control Valve Samson Electropneumatic Valve Positioner 3725 3730-3 3730-5 Valve Parts Supplier

1
MOQ
US $1250.00 - 1750.00/ Set
Price
New Samson Steam Control Valve Samson Electropneumatic Valve Positioner 3725 3730-3 3730-5 Valve Parts Supplier
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Structure: Control
Input Signal: 4-20 MA DC
Operational Pressure Range: Customized
Air Connections: G Or NPT
Operating Temp. Range: Customized
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 Steam Control Valve Samson Electropneumatic Valve Positioner 3725 3730-3 3730-5
Product Overview
  1. Original Samson electropneumatic valve positioner series, perfectly matched with Samson steam control valves for precise process regulation
  2. Includes basic analog type 3725 and smart HART-enabled 3730-3 / 3730-5, covering entry-level to high-end control demands
  3. Modular structure with full range of matching valve spare parts available, easy for on-site maintenance and upgrade
Technical Specifications
Category Core Parameters
Control Performance 4-20mA input signal; 3725 accuracy ±0.5% span; 3730 series accuracy ±0.25% span; fits linear/rotary actuators
Environment & Protection IP66 enclosure; -40°C to +85°C operating temperature; optional ATEX / IECEx explosion-proof certification
Communication & Air Supply 3730 series supports HART protocol; supply pressure 1.4–6 bar; standard NPT pneumatic ports
Application Industry
  1. Petrochemical and chemical plants for steam pipeline and process fluid flow regulation
  2. Power generation and district heating for boiler steam control and heat exchange system regulation
  3. Food, pharmaceutical and water treatment for sanitary process and industrial water flow control
Common Problems & Solutions
  1. Position drift or unstable output: Recalibrate zero and span, verify clean and stable air supply pressure
  2. Slow valve response: Clean air filter element, adjust damping setting and inspect actuator air tightness
  3. HART communication failure (3730 series): Check signal wiring loop, reset communication parameters
Replacement Models
  1. Samson 3731: Upgraded smart positioner with PROFIBUS PA communication for advanced digital control
  2. Samson 3724: Basic pneumatic positioner for pure pneumatic control systems
  3. F-isher DVC6200: Peer alternative smart positioner compatible with most industrial control valves
Why Buy From Us
  1. 100% original Samson products with official certification and 12-month warranty
  2. Massive stock of positioners and valve spare parts for one-stop procurement
  3. Professional technical support for model selection, installation and commissioning guidance
Stock & Delivery Time
  1. Standard models (3725, 3730-3) in stock, dispatched within 5–7 working days
  2. Custom explosion-proof versions and special spare parts have 2–3 weeks lead time
  3. Global sea/air shipping available with full customs clearance documents
RFQ Form
  1. Please confirm exact model, quantity and explosion-proof grade in your inquiry
  2. Provide matched valve/actuator parameters and application conditions for accurate quotation
  3. Formal quotation with full official datasheet will be sent within 24 working hours
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
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
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Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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No.6 Building,No.98 Lane, No.1 Fulian Road, Baoshan District, Shanghai, China
edward.zhao@gongboshi.com
+8615000725058
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