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PLAST-O-MATIC

PLAST-O-MATIC is a manufacturer of corrosion-resistant fluid control components, primarily serving industries that handle aggressive chemicals, ultrapure water, and other demanding media. The company's product line includes diaphragm check valves, solenoid valves, pressure relief valves, regulators, and sight flow indicators, all constructed from engineered thermoplastics such as PVC, polypropylene, and PVDF. These materials provide resistance to a wide range of acids, bases, and solvents, making PLAST-O-MATIC components suitable for applications in chemical processing, water treatment, semiconductor manufacturing, and electroplating. The product range covers pipe sizes from 1/2 inch to 3 inches, with operating pressures up to 140 psi for PVC models and 115 psi for polypropylene variants. Valve configurations include 2-way normally closed solenoid valves with coil enclosures rated for dust-tight or watertight service, and diaphragm check valves with FKM (Viton) seals for chemical compatibility. Sight flow indicators are available in single-wall and double-wall designs with acrylic windows, allowing visual confirmation of flow direction and clarity. All components use standard NPT or FNPT threaded connections, facilitating integration into existing piping systems. 3G Electric stocks over 160 SKUs from PLAST-O-MATIC, covering the most commonly specified sizes and configurations. The inventory includes inline diaphragm check valves, solenoid valves with 120V AC coils, and full-view flow indicators in PVC and polypropylene. For applications requiring visual flow monitoring, the double-wall sight flow indicators provide an additional layer of containment. The solenoid valves feature pilot-operated or direct-acting designs, with options for DIN connectors or junction boxes. PLAST-O-MATIC components are designed for maintenance and replacement without special tools, reducing downtime. The use of thermoplastic bodies eliminates galvanic corrosion concerns when installed in metal piping systems. For procurement specialists and plant engineers, PLAST-O-MATIC offers a predictable specification path: material selection based on chemical compatibility, pressure rating, and connection size. 3G Electric supports this line with technical data sheets and cross-reference assistance, enabling accurate selection for new installations or retrofit projects.

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About PLAST-O-MATIC

PLAST-O-MATIC is a manufacturer of corrosion-resistant fluid control components, primarily serving industries that handle aggressive chemicals, ultrapure water, and other demanding media. The company's product line includes diaphragm check valves, solenoid valves, pressure relief valves, regulators, and sight flow indicators, all constructed from engineered thermoplastics such as PVC, polypropylene, and PVDF. These materials provide resistance to a wide range of acids, bases, and solvents, making PLAST-O-MATIC components suitable for applications in chemical processing, water treatment, semiconductor manufacturing, and electroplating. The product range covers pipe sizes from 1/2 inch to 3 inches, with operating pressures up to 140 psi for PVC models and 115 psi for polypropylene variants. Valve configurations include 2-way normally closed solenoid valves with coil enclosures rated for dust-tight or watertight service, and diaphragm check valves with FKM (Viton) seals for chemical compatibility. Sight flow indicators are available in single-wall and double-wall designs with acrylic windows, allowing visual confirmation of flow direction and clarity. All components use standard NPT or FNPT threaded connections, facilitating integration into existing piping systems. 3G Electric stocks over 160 SKUs from PLAST-O-MATIC, covering the most commonly specified sizes and configurations. The inventory includes inline diaphragm check valves, solenoid valves with 120V AC coils, and full-view flow indicators in PVC and polypropylene. For applications requiring visual flow monitoring, the double-wall sight flow indicators provide an additional layer of containment. The solenoid valves feature pilot-operated or direct-acting designs, with options for DIN connectors or junction boxes. PLAST-O-MATIC components are designed for maintenance and replacement without special tools, reducing downtime. The use of thermoplastic bodies eliminates galvanic corrosion concerns when installed in metal piping systems. For procurement specialists and plant engineers, PLAST-O-MATIC offers a predictable specification path: material selection based on chemical compatibility, pressure rating, and connection size. 3G Electric supports this line with technical data sheets and cross-reference assistance, enabling accurate selection for new installations or retrofit projects.

Common Applications

  • Chemical processing — PLAST-O-MATIC PVC diaphragm check valves for preventing backflow in acid transfer lines
  • Water treatment — PLAST-O-MATIC polypropylene solenoid valves for automated control of chemical dosing systems
  • Semiconductor manufacturing — PLAST-O-MATIC PVDF pressure relief valves for ultrapure water distribution
  • Electroplating — PLAST-O-MATIC sight flow indicators for monitoring electrolyte circulation in plating baths
  • Pharmaceutical production — PLAST-O-MATIC 2-way normally closed solenoid valves for sterile fluid handling
  • Wastewater treatment — PLAST-O-MATIC double-wall flow indicators for visual confirmation of sludge flow

Frequently asked questions

Common questions about PLAST-O-MATIC from 3G Electric.

What materials are PLAST-O-MATIC valves and flow indicators available in?

PLAST-O-MATIC components are primarily manufactured from PVC and polypropylene. PVC models are suitable for a broad range of chemicals and offer a maximum operating pressure of 140 psi. Polypropylene models provide higher temperature resistance and are rated to 115 psi. Both materials resist corrosion from acids, bases, and many solvents. Seals and diaphragms are typically FKM (Viton) for chemical compatibility. Window materials on sight flow indicators are acrylic.

What is the difference between single-wall and double-wall sight flow indicators from PLAST-O-MATIC?

Single-wall sight flow indicators have one acrylic window for direct viewing of the fluid. Double-wall indicators have two concentric windows, providing an additional containment layer in case the inner window fails. Both types are rated for horizontal mounting and can be installed in any flow direction. Double-wall models are recommended for hazardous or high-value fluids where leak prevention is critical.

Are PLAST-O-MATIC solenoid valves suitable for outdoor or washdown environments?

PLAST-O-MATIC solenoid valves are available with coil enclosures rated as dust-tight or watertight. For example, the PS series with watertight enclosures can withstand direct water spray and dust ingress. Standard models without junction boxes are intended for indoor or protected locations. Always verify the coil enclosure rating against the environmental conditions of the installation site.

What pipe sizes and connection types are available for PLAST-O-MATIC check valves?

PLAST-O-MATIC inline diaphragm check valves are available in pipe sizes from 1/2 inch to 2 inches, with FNPT x FNPT threaded connections. The diaphragm design provides low cracking pressure and positive sealing against backflow. These valves are suitable for vertical or horizontal installation and can handle flow in any direction.

Can PLAST-O-MATIC flow indicators be used with opaque or dirty fluids?

PLAST-O-MATIC sight flow indicators are designed for clear or translucent fluids where visual observation of flow is possible. Opaque or heavily contaminated fluids may obscure the view through the acrylic window. For such applications, alternative flow monitoring methods such as flow switches or ultrasonic sensors should be considered.

Does 3G Electric supply PLAST-O-MATIC products?

Yes — 3G Electric (S) Pte. Ltd. supplies PLAST-O-MATIC products. We stock the PLAST-O-MATIC catalog and supply genuine factory-original products with full manufacturer warranty and technical support.