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Samson 3277 - User Manual

Samson 3277
104 pages
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Translation of original instructions
EB 8048-2 EN
53-07
Type3349 Valve with Type3277 Pneumatic
Actuator and Type3730 Positioner
Type3349 Valve combined with Type3379
Pneumatic Piston Actuator and Type3724
Positioner
Edition June 2022
Type3349 Aseptic Angle Valve with USP-VI diaphragm
In combination with an actuator, e.g. a SAMSON Type3271 or
Type3277 Pneumatic Actuator or Type3379 Pneumatic Actuator

Table of Contents

Other manuals for Samson 3277

Preview: Manual
Manual32 pages
Preview: Quick Guide
Quick Guide2 pages
Preview: Original Instructions
Original Instructions72 pages

Questions and Answers

  • C
    Christy RobinsonAug 20, 2025
    Why doesn't the actuator stem move on demand in my Samson Controller?
    • S
      Shane GomezAug 20, 2025
      The actuator stem might not move due to several reasons. It could be blocked; check the attachment and remove any blockage, remembering to disconnect and lock the pneumatic air supply and control signal before unblocking, and release any stored energy in the actuator. Insufficient signal pressure is another possibility; in this case, check the signal pressure and the signal pressure line for leakage. Also, the signal pressure might not be connected to the correct diaphragm chamber. Finally, the diaphragm in the actuator might be defective.
  • T
    Tina SosaAug 22, 2025
    What to do if the actuator stem doesn't stroke fully in my Samson Controller?
    • J
      Joseph GrimesAug 22, 2025
      If the actuator stem isn't stroking through its complete travel range, first check if the travel stop is active. Then, verify the signal pressure and check the signal pressure line for any leaks. Finally, examine the settings of the valve accessories, first checking the actuator without valve accessories.
  • R
    Richard StoutAug 25, 2025
    Why is my Samson Control Unit valve leaking to the atmosphere?
    • J
      Jacob ChristensenAug 25, 2025
      The valve might be leaking due to several reasons: * Defective packing: Consider replacing the packing. * Adjustable packing not tightened correctly: Ensure the packing is tightened correctly. * Loose flanged joints or worn-out body gaskets: Check the flanged joints and replace the gaskets if necessary. * Bellows seal defective: If your unit has a bellows seal, it might be defective.
  • M
    Matthew CunninghamAug 26, 2025
    What to do if there is increased flow through my closed Samson Control Unit valve?
    • F
      Francisco McdonaldAug 26, 2025
      If you observe increased flow through a closed valve, it could be due to: * Dirt or foreign particles: Shut off the pipeline section and flush the valve to remove any deposits between the seat and plug.
  • D
    Daniel HicksAug 27, 2025
    Why doesn't the actuator and plug stem stroke through the full range on my Samson Control Unit?
    • E
      ericedwardsAug 28, 2025
      The actuator and plug stem might not stroke fully due to: * Signal pressure too low: Check the signal pressure and inspect the signal pressure line for leaks. * Incorrect setting of valve accessories: Verify the settings of the valve accessories.
  • J
    james77Aug 29, 2025
    How to troubleshoot an actuator that doesn't move on demand in a Samson Control Unit?
    • A
      Adam MurrayAug 30, 2025
      If the actuator and plug stem do not move on demand, consider the following: * Actuator blockage: Put the control valve out of operation and remove the blockage. * Signal pressure too low: Check the signal pressure and the signal pressure line for leakage.
  • J
    Jamie WilliamsAug 31, 2025
    What causes jolting movement of the actuator and plug stem in a Samson Control Unit?
    • J
      joshua90Aug 31, 2025
      If you experience jolting movement, it might be because the packing is tightened too far. Tighten the packing correctly.
  • J
    Jessica GriffinSep 2, 2025
    What to do if there is increased flow through closed Samson Control Unit valve?
    • J
      Jessica BestSep 2, 2025
      If you observe increased flow through a closed valve, it could be due to dirt or foreign particles deposited between the seat and plug. Try shutting off the section of the pipeline and flushing the valve. Another reason could be worn valve trim, especially with a soft seat. In this case, replace the seat and plug.
  • M
    mariahughesSep 4, 2025
    How to troubleshoot a Samson Control Unit actuator that doesn't move on demand?
    • S
      Sandy FrySep 4, 2025
      If the actuator and plug stem do not move on demand, the actuator might be blocked; check the attachment and unblock it. Another cause may be that the signal pressure is too low; check the signal pressure and the signal pressure line for leakage. A defective diaphragm in the actuator could also be the cause.
  • S
    Sarah BurgessSep 6, 2025
    Why Samson Control Unit actuator doesn't stroke through the entire range?
    • M
      Michael HowellSep 6, 2025
      If the actuator and plug stem do not stroke through the entire range, this could be due to several reasons. The signal pressure might be too low, so check the signal pressure and the signal pressure line for leakage. It may also be that the travel stop is active, or the valve accessories are incorrectly set; in that case check the settings of the valve accessories.

Summary

Safety Instructions and Measures

Notes on Possible Severe Personal Injury

Details severe personal injury risks from pressure equipment and bursting.

Notes on Possible Personal Injury

Covers burn risks from hot/cold components, noise, and exhaust air.

Notes on Possible Property Damage

Warnings on the Device

Markings on the Device

Design and Principle of Operation

Fail-Safe Action

Explains valve behavior upon signal pressure or air supply failure.

Versions

Technical Data

Shipment and On-site Transport

Transporting and Lifting the Valve

Safety precautions and methods for transporting and lifting the valve.

Installation

Installation Conditions

Covers work position and pipeline routing requirements for proper function.

Preparation for Installation

Mounting the Device

Details the necessary activities for installing the valve and actuator.

Testing the Installed Valve

Outlines tests like leak test, travel motion, fail-safe position, and pressure test.

Start-up

Malfunctions

Troubleshooting

Provides a table of malfunctions, possible reasons, and recommended actions.

Emergency Action

Outlines plant operator responsibilities for emergency actions during valve malfunction.

Servicing

Periodic Testing

Checking the Extent of Servicing

Details checks for wear at seat, plug, and diaphragm, and torque checks.

Preparing the Valve for Service Work

Installing the Valve After Service Work

Service Work for Version with Type 3271 or Type 3277 Actuator

Procedures for replacing packing and diaphragm/plug for specific actuator types.

Service Work for Version with Type 3379 Actuator

Procedures for servicing valves with the Type 3379 actuator.

Checking the Concentricity of the Plug to the Plug Stem

Decommissioning

Removal

Removing the Valve from the Pipeline

Removing the Actuator from the Valve

Repairs

Returning Devices to SAMSON

Detailed process for returning defective devices to SAMSON for repair.

Samson 3277 Specifications

General IconGeneral
BrandSamson
Model3277
CategoryController
LanguageEnglish

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