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PLAST-O-MATIC

PLAST-O-MATIC is a US-based manufacturer of thermoplastic valves, pressure regulators, and flow control components for corrosive and ultra-pure liquid handling. The company's product line is built around PVC, CPVC, PTFE, polypropylene, and PVDF wetted materials, with seal options including FKM, EPDM, Viton, and Buna-N. These products are used in chemical processing, water treatment, semiconductor wet benches, plating lines, and laboratory fluid systems where metal components would corrode or contaminate the media. 3G Electric supplies the PLAST-O-MATIC range as part of its industrial flow-control catalog, with more than 160 SKUs available for direct quotation and global dispatch.

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About PLAST-O-MATIC

PLAST-O-MATIC is a US-based manufacturer of thermoplastic valves, pressure regulators, and flow control components for corrosive and ultra-pure liquid handling. The company's product line is built around PVC, CPVC, PTFE, polypropylene, and PVDF wetted materials, with seal options including FKM, EPDM, Viton, and Buna-N. These products are used in chemical processing, water treatment, semiconductor wet benches, plating lines, and laboratory fluid systems where metal components would corrode or contaminate the media. 3G Electric supplies the PLAST-O-MATIC range as part of its industrial flow-control catalog, with more than 160 SKUs available for direct quotation and global dispatch.

The PLAST-O-MATIC portfolio covers several functional categories. Pressure relief valves, including adjustable back pressure and antisiphon models, protect piping from overpressure in corrosive service. These are available in body sizes from 1 inch to 3 inches with FNPT connections, and set pressures are field-adjustable. Gauge guards isolate pressure instruments from aggressive or clogging process media using PTFE or Viton diaphragms, preventing gauge damage and maintaining readable pressure indication. The gauge guard line includes models with PVC bodies, Buna-N O-rings, and 1/2 inch process by 1/4 inch gauge connection patterns. Other product families include pressure regulators, bypass valves, and specialty flow control devices, all sharing the same thermoplastic construction philosophy.

Technical buyers selecting PLAST-O-MATIC components typically evaluate body material, seal elastomer, end connection type and size, and temperature range. For example, a PTFE antisiphon relief valve may be rated from 32°F to 140°F, while PVC-bodied units with FKM seals suit a broader chemical compatibility envelope. Many PLAST-O-MATIC products carry ISO 9001:2015 certification, and country of origin is typically the USA, though this can change by batch. 3G Electric lists manufacturer part numbers, connection sizes, seal materials, and media suitability for each SKU so that maintenance and procurement teams can cross-reference existing installations without ambiguity.

3G Electric supports the PLAST-O-MATIC line by holding or sourcing the full range of catalog items, from common relief valves to less frequently stocked gauge guard variants. The distributor provides part-number-level search, specification filtering, and quotation support for plant engineers and maintenance managers who need to replace or specify components in corrosive-fluid systems. Because 3G Electric ships globally, buyers are not limited by region when sourcing these thermoplastic valves and accessories. The catalog includes both standard and OEM part numbers, and 3G Electric can assist with identifying equivalent or alternate materials when a specific elastomer or body material is required for a given chemical service.

Common Applications

  • Chemical processing — PLAST-O-MATIC RVT150V-PV PVC pressure relief valve with FKM seals for overpressure protection on corrosive liquid lines.
  • Semiconductor wet bench — PLAST-O-MATIC RVDTM100T-PV PTFE antisiphon relief valve for ultra-pure chemical delivery systems.
  • Water treatment — PLAST-O-MATIC GGS series gauge guards with PTFE diaphragm to isolate pressure gauges from scaling and corrosive additives.
  • Plating and surface finishing — PLAST-O-MATIC gauge guards with Viton diaphragm and PVC body for acid and caustic bath monitoring.
  • Pharmaceutical fluid handling — PLAST-O-MATIC PTFE-bodied valves for high-purity liquid transfer where metal contamination is prohibited.
  • Laboratory and pilot plants — PLAST-O-MATIC adjustable back pressure relief valves in 1 inch to 3 inch sizes for small-scale corrosive fluid systems.

Guides & Resources

Frequently asked questions

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

What body and seal materials are available in PLAST-O-MATIC pressure relief valves?

PLAST-O-MATIC pressure relief valves are offered with PVC, CPVC, PTFE, polypropylene, and PVDF bodies. Seal options include FKM, Viton, EPDM, and Buna-N. For example, the RVT150V-PV model uses a PVC body with FKM seals and 1 1/2 inch FNPT connections, while the RVDTM100T-PV is a PTFE-bodied antisiphon relief valve with 1 inch FNPT connections. Material selection depends on the specific corrosive or ultra-pure liquid being handled and the operating temperature range. 3G Electric lists these material combinations at the SKU level so buyers can match existing wetted parts.

How do PLAST-O-MATIC gauge guards protect pressure gauges in corrosive service?

PLAST-O-MATIC gauge guards, such as the GGS series, use a flexible diaphragm to isolate the pressure gauge from the process fluid. The process side of the diaphragm contacts the media, while the gauge side is filled with a clean transfer fluid. This prevents corrosive liquids, slurries, or clogging media from reaching the gauge internals. Models are available with PTFE or Viton diaphragms, Buna-N O-rings, and PVC bodies. Connection sizes are typically 1/2 inch process and 1/4 inch gauge ports. The guards are used in chemical feed systems, plating lines, and wastewater treatment where direct gauge contact would cause rapid failure.

What temperature ranges do PLAST-O-MATIC valves support?

Temperature ratings vary by body and seal material. For instance, the PTFE antisiphon relief valve RVDTM100T-PV is rated from 32°F to 140°F. PVC-bodied valves generally have lower temperature limits than PTFE or PVDF units. FKM seals extend the upper temperature range compared to EPDM or Buna-N in many configurations. Because the maximum allowable temperature depends on the specific model and the chemical being handled, buyers should verify the rating for each part number. 3G Electric provides temperature specifications in the product data for each PLAST-O-MATIC SKU.

Are PLAST-O-MATIC products suitable for ultra-pure water applications?

Yes. PLAST-O-MATIC manufactures valves and gauge guards specifically for ultra-pure liquid systems. PTFE and PVDF wetted materials are common in these applications because they resist leaching and do not introduce metal contamination. The RVDTM100T-PV antisiphon relief valve, for example, is designed for corrosive and ultra-pure liquids. Gauge guards with PTFE diaphragms also prevent process fluid from contacting gauge internals, which helps maintain purity. For semiconductor, pharmaceutical, or laboratory water systems, buyers should confirm that all wetted materials meet the required extraction or purity standards for the specific process.

What connection sizes are available for PLAST-O-MATIC relief valves and gauge guards?

PLAST-O-MATIC relief valves are available in sizes from 1 inch to 3 inches with FNPT connections. The RVT150V-PV has 1 1/2 inch FNPT x FNPT ports, while the RVTX300V-PV has 3 inch FNPT x FNPT ports. Gauge guards typically use a 1/2 inch process connection and a 1/4 inch gauge connection, with NPT or FNPT threads depending on the model. Other connection types and sizes may be available across the broader catalog. 3G Electric lists the exact connection size and type for each SKU to simplify replacement and new specification.

Does 3G Electric stock PLAST-O-MATIC replacement parts and OEM part numbers?

3G Electric catalogs PLAST-O-MATIC products by manufacturer part number, including OEM numbers such as RVT150V-PV, RVTX300V-PV, RVDTM100T-PV, GGTSX1-PP, GGTS1-PV, GGTSX1-PV, GGVS1-PP, and GGVS1-PV. The catalog covers pressure relief valves, antisiphon valves, and gauge guards, with more than 160 SKUs in the PLAST-O-MATIC line. Availability varies by item, and 3G Electric can source non-stocked part numbers on request. Buyers can search by MPN, connection size, body material, or seal material to find the correct replacement or equivalent for their application.