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Samson 41-23 - User Manual

Samson 41-23
78 pages
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Translation of original instructions
EB 2512 EN
Type41-23 Universal Pressure Reducing Valve
Self-operated Pressure Regulators
Edition June 2020

Table of Contents

Questions and Answers

  • J
    johnsonjulieAug 13, 2025
    Why does the downstream pressure exceed the set point on my Samson Controller?
    • Z
      zedwardsAug 13, 2025
      The downstream pressure might exceed the adjusted set point on your Samson Controller due to several potential causes. Insufficient pressure pulses on the operating diaphragm can be a factor; for regulators with an external control line, ensure proper connection of the control line. Blockages can also be responsible: foreign particles blocking the plug, or a blocked control line. The regulator or K /C coefficient might be too large, indicating a need to check the sizing and potentially change the K /C coefficient or install a different sized regulator. For steam applications, the compensation chamber might be incorrectly positioned or too small. A defective operating diaphragm can also contribute to this issue.
  • D
    David KellyAug 25, 2025
    How to fix downstream pressure exceeding set point on Samson Controller?
    • M
      Mark JacobsAug 26, 2025
      To address downstream pressure exceeding the set point on your Samson Controller, begin by checking the control line connection (for regulators with external control lines) to ensure sufficient pressure pulses on the operating diaphragm. Inspect and clear the plug and control line of any foreign particles or blockages. Ensure that the pressure is tapped at the correct place, avoiding pipe bends or necks (for regulators with external control lines). Verify the regulator sizing and K /C coefficient, adjusting or replacing as necessary. If using steam, check the compensation chamber's position and size. If the operating diaphragm is defective, replace it.
  • B
    Barbara RoachNov 3, 2025
    What to do if the downstream pressure exceeds the adjusted set point in my Samson Controller?
    • S
      Seth BauerNov 3, 2025
      If the downstream pressure exceeds the adjusted set point, several factors could be responsible. First, if you have a regulator with an external control line, ensure the control line is properly connected for sufficient pressure pulses on the operating diaphragm. Also, check for and remove any foreign particles blocking the plug. A blocked control line can also cause this issue, so clean the control line and screw fittings. If you have a regulator with an external control line, ensure the pressure is tapped at the correct place, avoiding pipe bends or necks. The regulator or K /C coefficient might be too large, so check the sizing and change the K /C coefficient if needed, or install a different sized regulator. For steam applications, the compensation chamber might be in the wrong positio...

Summary

Safety Instructions and Measures

Intended Use

Describes the purpose and limitations of the regulator.

Qualifications of Operating Personnel

Personal Protective Equipment

Details required PPE for safe operation and handling.

Warning Against Residual Hazards

Advises on preventing hazards from process medium, pressure, or moving parts.

Responsibilities of the Operator

Responsibilities of Operating Personnel

Notes on Possible Severe Personal Injury

Warns about risks like bursting in pressure equipment.

Notes on Possible Personal Injury

Covers hazards from moving parts, illegible labels, noise, and burns.

Specific Warnings on the Regulator

Details warnings related to set point springs and bellows seal.

Design and Principle of Operation

Regulator Design and Functionality

Explains the components and operational principle of the regulator.

Technical Data: Temperature and Leakage

Shipment and On-site Transport

Transporting and Lifting the Regulator

Safety warnings and guidelines for transporting the regulator.

Lifting the Regulator Safely

Detailed instructions and safety measures for lifting the regulator.

Installation

Installation Conditions

Covers work position, pipeline routing, and mounting orientation.

Control line

Preparation for Installation

Lists checks and procedures before installing the regulator.

Assembly Instructions

Covers the general process of assembling the regulator components.

Installing Diaphragm Actuator

Step-by-step guide for installing the diaphragm actuator.

Installing Bellows Actuator (DN 15-50)

Installing Bellows Actuator (DN 65-100)

Installing Bellows Actuator (DN 65-100) - Continued

Regulator Testing Procedures

Performing a Leak Test

Details the process and responsibilities for conducting a leak test.

Performing a Pressure Test

Explains how to conduct a pressure test safely.

Start-up

Pre-Start-up Checks

Start-up Procedure Overview

Starting Up the Plant

Regulation of Liquids

Regulation of Steam

Operation

Adjusting the Set Point

Details how to adjust the downstream pressure set point.

Malfunctions and Troubleshooting

Troubleshooting Guide

Lists common malfunctions and their recommended solutions.

Troubleshooting Common Issues

Continues troubleshooting table for various issues.

Emergency Action Procedures

Outlines steps for emergency situations and regulator malfunctions.

Servicing and Maintenance

General Servicing Information

Preparing for Service Work

Installing After Service

Service Work Procedures

Replacing the Actuator

Detailed steps for removing and mounting the actuator.

Replacing Set Point Springs

Replacing Operating Diaphragm

Details on removing and mounting the operating diaphragm.

Operating Diaphragm Mounting

Steps for mounting the new operating diaphragm.

Ordering Spare Parts and Supplies

Decommissioning Procedures

Safety Precautions for Decommissioning

Lists hazards and safety measures before decommissioning.

Decommissioning Steps

Step-by-step guide for safely decommissioning the regulator.

Repairs and Returns

General Repair Information

Returning Devices to SAMSON

Annex: Technical Data and Support

Tightening Torques

Spare Parts List

After-Sales Service Contact

Contact details and procedures for service and support.

Required Information for Service

Samson 41-23 Specifications

General IconGeneral
BrandSamson
Model41-23
CategoryControl Unit
LanguageEnglish

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