SAMSON Additional Accessories

SAMSON's control valve accessories encompass a range of items including pneumatic lock-up valves, reversing amplifiers, pneumatic volume boosters, explosion-proof field barriers, air filter regulators, and position transmitters. These accessories are designed for precise control and safety in industrial environments, offering reliability and enhanced performance for various applications. Their products are engineered to meet the stringent requirements of modern industrial processes, ensuring efficiency and operational excellence.

Key Features

Key features and benefits of SAMSON Control Valve Accessories

Key Features

SAMSON's accessories are designed for accurate control, ensuring precise flow rates and pressure management in industrial systems.

Key Features

With features like explosion-proof field barriers, these accessories provide enhanced safety in hazardous environments, maintaining operational integrity.

Key Features

The range includes diverse products such as pneumatic volume boosters and air filter regulators, catering to a wide array of applications and improving overall system performance.

3709 Type Pneumatic Lock-up Valves

The Type 3709 pneumatic lock-up valve, suitable for all general industrial applications, is designed to shut off the signal pressure line of pneumatic actuators during air supply failure or when it falls below a preset value, ensuring the actuator retains its last position. It offers switching accuracies of 3 psi for 30psi, 4.5 psi for 60 psi, and 6 psi for 90 psi.

Application: Shutting Off the Signal Pressure Line of Pneumatic Actuators
Connections: ¼ NPT or G ¼
KVS Coefficient Range: Approx. 0.2
Weight (kg): 0.4
Housing Material: Die-cast Aluminum, Plastic-coated Stainless Steel on Request
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3710 Type Reversing Amplifiers

The Type 3710 reversing amplifier is designed for general industrial use, enabling double-acting pneumatic actuators to be operated with single-acting pneumatic or electro-pneumatic positioners or limit switches. This amplifier is suitable for integration with single-acting devices to facilitate the operation of double-acting pneumatic actuators, ensuring efficient functionality across a wide range of applications.

Application: Operate a Double-acting Pneumatic Actuator
Maximum Pressure: 6 Bar
Ambient Temperature Range: –25°C to 80°C
KV Coefficient: 0.11
Weight Range (kg): 0.5 / 1.2 for Stainless Steel Version
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3755 Type Pneumatic Volume Boosters

The Type 3755 pneumatic volume booster, suitable for all general industrial applications, is designed to enhance the positioning speed of actuators by providing a high-volume air flow. This device, fitted between the positioner and actuator, features a compact cast aluminium body, offers rapid dynamic response with minimal hysteresis, and includes a sintered polyethylene filter disk for reduced noise emissions. It also allows for exhaust air feedback and has a lead-sealable setting for the bypass restriction.

Application: Increase the Positioning Speed of Pneumatic Actuators
KVS for Exhaust and Supply: 2.5 m³/h
Pressure Ratio: 1:1
Mounting: Between Positioner & Actuator
Weight Range (kg): 2.1 to 5.2
Body Material: Cast Aluminium
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3770 Type Explosion Proof Field Barriers

The Type 3770 Field Barrier, featuring an explosion-proof enclosure, is engineered for use in all general industrial settings. This device acts as an essential interface between intrinsically safe and non-intrinsically safe circuits within hazardous zones, ensuring secure operation and compliance with safety standards.

Application: Interface Between Intrinsically Safe and Non-intrinsically Safe Circuits
Mounting: M20x1.5 Male Thread
Certification: IEC 60947-5-6, RU C-DE.GB08.B.00687, & PTB 98 ATEX 1025 X II
Enclosure Material: Die-cast Aluminum, Painted or Stainless Steel (AISI 316)
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4708 Type Air Filter Regulators

The Type 4708 series supply pressure regulators, designed for general industrial applications, provide pneumatic measuring and control equipment with a stable air supply by reducing compressed air network pressure to an adjusted level up to a maximum of 180 psi. Offering set point ranges from 3 to 24 psi and 8 to 90 psi, these regulators feature air blow-off, low air consumption, and are nearly unaffected by upstream pressure. They can be mounted in any position, except when a filter receptacle is used, and are suitable for pipe and panel mounting or attachment to various positioners and actuators.

Application: Provide Pneumatic Measuring and Control Equipment
Set Point Ranges: 0.2 to 1.6 Bar (3 to 24 psi) or 0.5 to 6 Bar (8 to 90 psi)
End Connection: Threaded Ends G According to DIN ISO 228-1 or with NPT Tapered Pipe Thread
Body Material: Stainless Steel
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4748 Type Position Transmitters

The Type 4748 analogue position transmitter, designed for general industrial use, connects to control valves and Type 4763 or 4765 positioners, converting valve movement into a 4-20mA output signal. It offers a wide travel range, reversible direction, versatile mounting, high vibration resistance, minimal hysteresis, and a two-wire circuit connection.

Application: Attachment to Control Valves
Weight (kg): 0.7
Body Materials: Die-cast Aluminium, Plastic Coated External Parts
Certification: IEC 60534
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Frequently Asked Questions

Control Valve Accessory FAQs

A positioner is a device used in industrial automation to precisely control the position of valves, actuators, or other mechanical devices. It typically consists of a sensor, a controller, and an actuator. The sensor measures the current position, which is compared to the desired position set by the controller.

Inductive limit switches are sensors that detect the presence or absence of metallic objects without physical contact. In pneumatic control valves, they are utilised to signal valve positions. These switches generate a magnetic field, and when a metallic object (such as a valve stem) enters this field, it induces a current, signaling the switch to change state.

A solenoid valve is an electromechanical device used to control the flow of fluids, such as water, air, gas, or oil. It consists of a coil of wire (solenoid) surrounding a movable ferromagnetic core (plunger) that is connected to a seal or valve mechanism.

Yes, inductive limit switches for pneumatic control valves are designed to function effectively in all general industrial applications. Their robust construction allows them to withstand harsh conditions such as temperature fluctuations, dust, and vibration commonly found in industrial settings.

Positioners offer several benefits, including improved accuracy, increased efficiency, and reduced maintenance. By precisely controlling the position of valves and actuators, positioners can ensure that processes operate at optimal levels, leading to higher productivity and quality. Additionally, positioners can help reduce wear and tear on equipment by minimising unnecessary movements, thereby extending the lifespan of industrial machinery.

Absolutely. These switches are versatile and can be used with both linear and rotary control valves. They come with attachment methods that facilitate their installation and operation on different types of valves, ensuring compatibility across various valve configurations.

Heating, ventilation, and air conditioning (HVAC) systems for regulating the flow of air or refrigerant.

When choosing a positioner, it's essential to consider factors such as the type of valve or actuator being controlled, the required positioning accuracy, environmental conditions, and compatibility with existing control systems. Additionally, factors such as response time, communication protocols, and power requirements should also be taken into account to ensure the selected positioner meets the needs of the application effectively.

The versions with Foundation Fieldbus offer advanced communication capabilities and diagnostics, enhancing control system functionality. Diagnostic features such as partial stroke test (PST), movement counter, operating hours counter, dead time, and transit time measurement provide valuable insights into valve performance and facilitate predictive maintenance.

Fluid compatibility, pressure and temperature ratings, flow rate requirements, environmental conditions.

The partial stroke test (PST) feature allows operators to test a portion of the valve's stroke without fully actuating it. This capability enables routine testing of valve functionality while the system remains operational, minimizing downtime. PST helps identify potential issues with valve operation and ensures that the valve responds as expected in critical situations.

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SAMSON Additional Accessories