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Samson 6493 Process Controller Temperature Pressure Flow Control Process Automation

1
MOQ
US $1200.00 - 1368.00/ Unit
Price
Samson 6493 Process Controller Temperature Pressure Flow Control Process Automation
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Wire Resistance: Three-wire
Degree Of Protection: IP 65
Ambient: 0 To 50 °C
Max. Permissible Signal Range: 0 To 22 MA, 0 To 11 V
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Samson process controller temperature control

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Samson 6493 flow control valve accessory

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process automation pressure control device

Basic Infomation
Place of Origin: Germany
Brand Name: Samson
Model Number: 6493
Payment & Shipping Terms
Packaging Details: Cardboard box/Wooden crate
Delivery Time: 4-6 weeks
Payment Terms: T/T
Supply Ability: 1800 units per year
Product Description
Product Overview

The SAMSON Type 6493 is a purely pneumatic differential pressure controller that operates without any electrical power. It uses a diaphragm measuring system and force-balance principle to maintain a constant differential pressure by producing a pneumatic control signal. This model is still widely used in plants with legacy pneumatic instrumentation or where explosion-proof, non-electric control is required.

Technical Specifications
Parameter Specification
Control Type Pneumatic, force-balance
Set Point Adjustment Adjustable springs (0.02–2 bar / 0.3–29 psi typical)
Supply Air 1.4 bar ±0.1 bar (20 psig ±1.5 psi)
Output Pressure 0.2–1.0 bar (3–15 psig)
Proportional Band Adjustable (typically 2–200 %)
Reset Time Adjustable (typically 0.1–30 min)
Ambient Temperature –20 … +80 °C (–4 … +176 °F)
Protection IP 54
Materials Aluminum body (standard), stainless steel option
Application Industry
  • Steam pressure differential control
  • Pump differential pressure maintenance
  • Heat exchanger bypass control
  • Tank blanketing systems
  • Pneumatic-only safety loops in hazardous areas
Common Problems & Solutions
  • Problem: Controller oscillates → Solution: Fine-tune proportional band and reset time
  • Problem: Air supply contamination → Solution: Use clean, dry instrument air with filter
  • Problem: Set point shift over years → Solution: Recalibrate springs periodically
Replacement Models
  • Current SAMSON Type 6493 (still manufactured)
  • Older SAMSON pneumatic controllers (similar force-balance models)
Why Buy From Us
  • Original SAMSON product with traceability
  • Experienced in pneumatic loop troubleshooting
  • Quick delivery of spares (springs, diaphragms)
  • Fair pricing with warranty
Stock & Delivery Time
  • Standard ranges: in stock or 2–4 weeks
  • Special set point / material versions: 4–8 weeks
RFQ Form

Please send us:

  • Differential pressure set point range
  • Supply air pressure
  • Medium & operating temperature
  • Connection type
  • Quantity & urgency
  • Any special options needed
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
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2 stars
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1 stars
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All Reviews

A
Alex
Switzerland Dec 1.2025
great price and fast delivery
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Get in touch with us
Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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