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Pressure Control Valves Samson 3241 Ball Valve with 3730 Positioner and 3277 Actuator 4708 Regulator for Whole Valve Control - Casting / Medium Pressure / 1/2 in

SAMSON Type 3241-7 Pneumatic Globe Control Valve with 3277 Actuator, 3730 Positioner and 4708 Regulator

SKU: 1600983277802Brand: TSA HydraulicsCategory: Valves

The SAMSON Type 3241-7 Pneumatic Globe Control Valve Assembly is designed for precise regulation of flow, pressure, and temperature in industrial process control systems.

  • Two-Way Globe Valve Valve Configuration
  • PN 10–40 DIN Pressure Rating Options
  • Pneumatic Valve Actuation
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SAMSON Type 3241-7 Pneumatic Globe Control Valve with 3277 Actuator, 3730 Positioner and 4708 Regulator

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Product Overview

The SAMSON Type 3241-7 Pneumatic Globe Control Valve Assembly is designed for precise regulation of flow, pressure, and temperature in industrial process control systems. Manufactured by SAMSON, this complete valve assembly combines the Type 3241 globe control valve, Type 3277 pneumatic diaphragm actuator, Type 3730 electropneumatic valve positioner, and Type 4708 instrument air pressure regulator. These components work together to provide accurate valve positioning, controlled pneumatic operation, and dependable process regulation. The globe valve's linear-moving plug and seat mechanism adjusts the flow of compatible liquids, gases, and steam, making the assembly suitable for demanding industrial applications.

Part of the SAMSON Series 240, the Type 3241-7 features a modular design that supports different valve body materials, pressure ratings, flow characteristics, and pneumatic control configurations. The Type 3277 actuator converts instrument air pressure into linear valve stem movement, while the Type 3730 positioner controls actuator pressure to achieve the required valve opening. The Type 4708 regulator reduces and stabilises the supply air pressure delivered to the pneumatic control equipment. This arrangement supports accurate flow modulation, reliable actuator response, and efficient maintenance in chemical processing, oil and gas facilities, power generation, water treatment, and industrial manufacturing. 

Technical Specifications

Specification

Value

Product Name

Pneumatic Globe Control Valve Assembly

Manufacturer / Brand

SAMSON

Main Valve Model

Type 3241

Complete Valve Designation

Type 3241-7

Product Series

Series 240

Product Type

Pneumatically Actuated Globe Control Valve

Valve Configuration

Two-Way Globe Valve

Valve Operating Principle

Linear Plug and Seat Flow Regulation

Actuator Model

Type 3277

Actuator Type

Pneumatic Diaphragm Actuator

Positioner Model

Type 3730 Series

Positioner Type

Electropneumatic Valve Positioner

Pressure Regulator Model

Type 4708 Series

Regulator Type

Instrument Air Supply Pressure Regulator

Valve Nominal Size Range, Series

DN 15–300

Type 3241-7 Nominal Size Range

DN 15–150

DIN Pressure Rating Options

PN 10–40

Valve Body Material Options

Cast Iron, Cast Steel, Stainless Steel and Special Alloys

Process Connection

Flanged, with Other Options Depending on Configuration

Valve Stem Movement

Linear

Flow Characteristic Options

Linear or Equal Percentage

Valve Plug Sealing Options

Metal Seal, Soft Seal or High-Performance Metal Seal

Standard Process Temperature Range

−10°C to +220°C

Special Process Temperature Capability

−196°C to +450°C, Depending on Configuration

Valve Leakage Classification

Depends on the Installed Valve Trim

Valve Actuation

Pneumatic

Actuator Operating Principle

Pneumatic Pressure and Spring Force

Actuator Failure Action

Stem Extends or Stem Retracts

Positioner Mounting

Integral Attachment to Compatible Type 3277 Actuator

Positioner Electrical Input

Depends on Installed Type 3730 Model

Positioner Communication

Depends on Installed Type 3730 Model

Regulator Function

Instrument Air Pressure Reduction

Compatible Regulator Family

Type 4708

Regulator Mounting

Direct or Adapter-Based, Depending on Model

Regulator Filtration

Available Depending on Configuration

Instrument Air Medium

Clean, Dry Compressed Air

Primary Control Function

Flow, Pressure and Temperature Regulation

Application Scope

Industrial Process Control Systems

Condition

New

Warranty

1 Year 

Key Features

Complete pneumatic globe control valve assembly for industrial process regulation

SAMSON Type 3241 globe valve for precise fluid flow control

Type 3277 pneumatic diaphragm actuator for controlled linear valve movement

Type 3730 electropneumatic positioner for automatic actuator positioning

Type 4708 instrument air regulator for stable pneumatic supply pressure

Modular construction for convenient maintenance and component replacement

Two-way globe valve design for accurate throttling applications

Linear or equal-percentage flow characteristics available according to valve trim

Multiple valve body material options for different industrial operating conditions

Spring-return actuator design with configurable fail-open or fail-closed action

Integral positioner mounting supported by the Type 3277 actuator

Responsive pneumatic control for stable flow and pressure regulation

Compatible with properly specified industrial automation and process control systems

Optional valve trim configurations for different leakage and operating requirements

Suitable for continuous modulating control in industrial process installations

Individual components can be serviced or replaced using compatible SAMSON spare parts

Designed for industrial control valve maintenance and process automation upgrades

Typical Applications

Industrial process flow regulation

Oil and gas production and processing facilities

Chemical and petrochemical manufacturing plants

Petroleum refining and processing installations

Power generation and steam control systems

Water and wastewater treatment facilities

Industrial manufacturing and production equipment

Industrial pressure regulation systems

Temperature control and heat exchanger applications

Process fluid distribution and transfer systems

Pneumatic control valve automation

Chemical dosing and processing systems

Industrial utilities and plant instrumentation

Boiler feedwater and compatible steam systems

Distributed control and process automation systems

Industrial valve maintenance and equipment replacement

Shipping & Support

Fast dispatch – Australia & Worldwide Shipping

Technical assistance available

1-year warranty

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Questions about this part?

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Can you help me size a pump or valve for my application?

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Can you cross-reference a discontinued part?

Yes — cross-referencing is one of the things we do most. Send us the original part number (even if the manufacturer has dropped it) and our engineering desk will identify a current equivalent or compatible alternative. Cross-reference lookups are free and typically come back within 4 business hours.