Products

Plast-O-Matic Series MFR is the answer for handling pure de-ionized rinse water where your hands must be free to handle the part being rinsed. They are also ideal for handling corrosive or other ultrapure liquids where economical performance is a prime consideration. Series MFR self-closing valves are normally-closed and require a minimum of palm, foot or knee pressure to open. Double u-cup seals are used on the shaft to isolate the spring from the process fluid. Maximum working inlet pressure of 150 psi @ 73°F. Series MFR valve bodies are made from Type 1, grade 1 PVC with seal materials in FKM and EPDM. The spring (non-wetted) is stainless steel.

Plast-O-Matic Series PRHM pressure regulators are designed to handle corrosive and ultra-pure liquids with inlet pressures up to 150 psi at 75°F. The standard downstream set pressure range is 5 to 125 psi; however, with special springs it can reach 75 psi. The design incorporates a poppet seat at the valve orifice to prevent sticking and double U-cup seals on the internal shaft to prevent inlet pressure from affecting the sensing of the downstream pressure. Also, the one-piece body construction eliminates internal leakage that could cause the set pressure to creep beyond a safe limit. A unique rolling diaphragm seal isolates the spring chamber from the downstream liquid. This unique design, in conjunction with a pressure balanced shaft, assures smooth and stable control. Series PRHM pressure regulators prevent downstream pressure from exceeding the desired set pressure. The regulator will remain closed as long as the set pressure is maintained. As equipment or valves downstream of the regulator begin to open and demand flow, the downstream pressure begins to fall and the regulator opens. It continues to open further as more flow is needed until its maximum opening is reached. When the downstream pressure again reaches the set pressure, the regulator closes. Series PR pressure regulators are available in PVC, Polypropylene, PTFE and PVDF. Seals can be EPDM or FKM. For Series PRHM, inlet and outlet connections are NPT female threads.

Advantages of Plast-O-Matic PRHM Regulators
• Automatically regulate and prevent the downstream pressure from exceeding its set point   • Large surface area of its frictionless rolling diaphragm provides exceptional sensitivity to pressure fluctuations      • Downstream pressures settings adjustable from 5 to 125 psi   • Optional gauge ports to assist with setting and monitoring pressure   • Rugged construction with inlet pressures to 150 psi   • Seal concepts provide non-sticking design   • Control spring is isolated from liquid path

* PR series pressure regulators with a pressure setting range of 5 to 50 psi - request information on PH Series regulators.