PVC & CPVC High Performance Pressure Regulators Now Certified NSF-61 (read more)

The Best Ball Valve Is Now Available with BCF Butt-Fusion Metric Spigots. Now with spigot connections...fully compatible with Polypure, Beta, Purad and Sygef systems! (read more)

• Prevent reverse flow.
• Prevent liquids from mixing.
• Prevent tainted liquids downstream from mixing with a pure supply, similarly…
• Prevent treated liquids downstream from backing up into the original untreated source.

• Engineered Ball Valves that provide performance, longevity, and value that is superior to all other brands.
• Available in Grade 1, Type1 Geon® PVC, Corzan ® CPVC, Natural Unpigmented Polypro, Kynar ® PVDF, and custom materials.
• Ball Valves manufactured in USA since 1983.
• Million-cycle design – 3 year guarantee

By knowing how to avoid situations that will create water hammer or pulsations during the specification process, or while trouble shooting, you can eliminate a lot of problems, failed valves and equipment, and costly downtime. (read more)

The what, how, where & why of degassing valves, with technical details, explanation of function, installation notes, dimensions, and more..... (read more)

The combination of a pressure regulator at the beginning of a system, and a backpressure regulator at the end of a system, will ensure balanced pressure throughout the system. This is a simplification, of course, and the specifics within any given system can vary greatly. (read more)

Plast-O-Matic Valves'' Andy Ryan describes the use and function of a normally-closed, 2-port "relief/backpressure" valve at the downstream end of a closed loop piping system. The valve is used to regulate backpressure, so that the system will maintain a desired, pre-set pressure to points of use. (read more)

Static method for setting a pressure regulator, also known as a pressure reducing valve. By setting statically, Series PRHM assures that pressure will not "creep" across the valve and exceed the set point (read more)

Gauge Guard isolates the transducer, eliminating corrosion and contamination. A flexible barrier prevents the process fluid from entering the instrument. Pressure on the process side flexes it, transmitting the pressure to the instrument. Conversely, vacuum pulls the diaphragm, creating an equal vacuum in the isolated instrument. (read more)

Acrylic material shows float opening as air or gas collects in the valve, then closing after degassing. Design provides continuous expulsion of trace amounts of gas as it occurs. (read more)

Plast-O-Matic thermoplastic calibration columns are a quick and convenient way to
measure or verify pump flow rates, chemical dosing, or chemical feed systems with higher
accuracy than competitive models. Designed for precise, efficient testing with a variety of
installation options. (read more)

Verify pump flow rates, chemical dosing, or chemical feed systems with higher accuracy than competitive models. Constructed of UV Resistant PVC and designed for precise, efficient testing with a variety of installation options. (read more)

The Stabilizer reacts to downstream liquid pressure and provides continuous feedback control to the compressed air supply, for even greater regulator sensitivity and performance. (read more)

Air Release or Degassing?
Differences Between an Air Release Valve and a Degassing Valve (read more)

Series EASMT and EASYMT automatically shut off flow of highly corrosive and ultra-pure liquids. They can handle acids, caustics, solvents, chlorine solutions, sodium solutions, deionized water, reverse osmosis water, brewery processes, etc. and do not require pressure to aid in opening the valve.. (read more)

Overview of "the engineered ball valve" product line from Plast-O-Matic Valves (read more)

We offer an extensive array of process controls to help you address your process and chemical handling needs. Plast-O-Matic Valves, Inc. provides innovative products and technologies, technical expertise and customer support services for municipal water and wastewater treatment customers. (read more)

Plast-O-Matic Valves. Inc. designs innovative process controls that lead the industry in cleanliness and functionality to meet these ever changing demands (read more)

Plast-O-Matic Valves provides the knowhow for handling the corrosive, caustic, and other difficult materials used in metal finishing. Our most popular offerings for this industry include PTFE bellows solenoid valves and by-pass relief valves designed for 2 million cycles. (read more)

Thermoplastic Pressure Regulator
Downstream Pressure Settings From 10 To 125 PSI
Designed for Higher Flow Capacities, and …
Achieved with Less System Pressure Loss! (read more)

A specialty diaphragm check valve that opens with virtually no forward pressure. However, Series CKD requires a minimum back pressure of 1/2 PSI to close. When inlet pressure is sensed the sealing disc is pushed off the valve seat opening the valve. In this position the sealing disc is supported internally allowing the valve to operate under high flow conditions with relatively no force... (read more)

Innovative Design Provides Multiple System Safeguards (read more)

The Series PDS Pulsation Dampener / Suppressor from Plast-O-Matic Valves has an Innovative Design which provides multiple system safeguards. (read more)

Compact Globe Style Shut Off Valves

Series BSR/BSRM Compact globe-style shut off valves in PVC or Polypro with elastomer seals. Wide range of sizes and connection types. Normally closed operation; ideal alternative to fail safe air-operated ball valves. (read more)

High Performance Pressure Regulators

Series PR/PRH/PRHM Downstream pressure reducing valve features large area rolling diaphragm, ultra-smooth operation and isolated spring control. Molded and machined valves in 1/4″ through 4″ and metric pipe sizes in popular thermoplastic materials with a wide range of connection types. Proven design provides highest flow with... (read more)

Series CKS Check Valves are normally-closed in design. They feature a corrosion resistant PFA encapsulated spring which energizes a poppet seal that will neither stick nor chatter and is automatic in action. The valves are not dependent upon gravity or reverse flow and represent a significant improvement over ball check valves. (read more)

Differential Pressure Indicator

Series DPI Indicator designed to show at a glance if maximum filter pressure has been exceeded. 1/8″ FNPT connections with 0-15 PSID or 0-30 PSID Gauge; PVC or CPVC. Series DPIS includes optional switch. (read more)

Our chemical handling valve designs offer extraordinarily high cycle life, beginning with engineered dynamic seals for long trouble free service and optimum return on investment. (read more)

We offer an extensive array of process controls to help you address your process and chemical handling needs. Plast-O-Matic Valves, Inc. provides innovative products and technologies, technical expertise and customer support services for municipal water and wastewater treatment customers. (read more)

Maintain constant flow with inlet pressure changes from 15 to 120 PSI (1 bar to 8 bar). Available in pipe sizes 1/4″ through 3″, with standard flow ranges from 1/4 GPM to 120 GPM. Valves are pre-set and tamper-proof. (read more)

Series VPA metering pumps are air-operated, self-priming, positive displacement type pumps designed to meter precise quantities of liquids, accurate to 1/2 of 1%. The four sizes of pumps available have a single stroke maximum delivery capacity of 7, 10, 32 or 128 liquid ounces, adjustable to deliver smaller portions. (read more)

Series PCWS supply side or Series PCWR return side assemblies simplify piping and provide superior strength. Fully customizable with choice of valves, flow, and pressure controls; pressure and temperature gauges, flowmeters, and virtually any conceivable combination of connection sizes and types. (read more)

Series CKS Check Valves are normally-closed in design. They feature a corrosion resistant PFA encapsulated spring which energizes a poppet seal that will neither stick nor chatter and is automatic in action. The valves are not dependent upon gravity or reverse flow and represent a significant improvement over ball check valves. (read more)

Plast-O-Matic continuous, automatic degassing valve now available with clear acrylic body for easy visual verification. One minute video demonstration shows ozone generation system with continuous outgassing, alleviated by the Series DGV Degassing Valve. (read more)

Series DPI Indicator designed to show at a glance if maximum filter pressure has been exceeded. 1/8″ FNPT connections with 0-15 PSID or 0-30 PSID Gauge; PVC or CPVC. Series DPIS includes optional switch. (read more)

Series BSR requires 25 PSI of air pressure to fully open; Series BSRM requires 50 PSI of air pressure to fully open. The valve closes automatically via spring -- also known as fail-safe to closed position -- when air is shut off. The spring is not in the liquid.

Double U-cup seals are used on the internal shaft for low friction and long cycle life. This, in conjunction with a popp... (read more)

Plast-O-Matic Series BSR and BSRM air operated normally closed valves are the answer to handling pure liquids, chemicals, acids, and caustics where positive bubble-tight shutoff is a prime concern, and where it is not necessary to visually see the position of the valve. (read more)

Series CKS Check Valves are normally-closed in design. They feature a corrosion resistant PFA encapsulated spring which energizes a poppet seal that will neither stick nor chatter and is automatic in action. The valves are not dependent upon gravity or reverse flow and represent a significant improvement over ball check valves. (read more)

Series CKD Compact Diaphragm Check Valve -- CKD025EP-PV

A specialty diaphragm check valve that opens with virtually no forward pressure. However, Series CKD requires a minimum back pressure of 1/2 PSI to close. When inlet pressure is sensed the sealing disc is pushed off the valve seat opening the valve. (read more)

Series ARV designed to expel large volume of air at system start up, then close bubble tight. Unique self-guided poppet seals more reliably than ball designs; does not deform under pressure and assures minimal emission of system liquid prior to sealing. (read more)

Introduction to the complete line of backpressure valves offered by Plast-O-Matic (read more)

Introduction to the line of pressure regulators -- also known as pressure reducing valves -- offered by Plast-O-Matic. (read more)

Training & Seminars
Self-Training Powerpoints

As the performance leader in the development of plastic valves and controls, Plast-O-Matic provides a complete line of standard and custom designed solutions for difficult applications. (read more)