PLAST-O-MATIC PR/PRH/PRHM High Performance Pressure Regulators

Descriptions of PLAST-O-MATIC PR/PRH/PRHM

PR/PRH

• Series PRH pressure regulators prevent downstream pressure form exceeding the desired set pressure.
• Regulator will remain closed as long as set pressure is maintained.
• As equipment or valve downstream of regulator begin to open and demand flow, the down-stream pressure begins to fall and the regulator begins to open.
• As valves or equipment downstream open further, the pressure regulator continues to open until the maximum opening is reached.
• As the process is reversed, downstream pressure begins to increase and the regulator starts closing.
• When the downstream pressure again reaches set pressure the regulator closes bubble-tight.

IMPORTANT: It should be noted from the preceding xplanation that a pressure regulator does not maintain a specific downstream pressure, but only prevents the downstream pressure from exceeding a set point.

PRHM

• Pressure regulators prevent downstream pressure from exceeding the desired set pressure.
• Regulator will remain closed as long as set pressure is maintained.
• As equipment or valves downstream of regulator begin to open and demand flow, the downstream pressure begins to fall and the regulator begins to open.
• As valves or equipment downstream open further, the pressure regulator continues to open until the maximum opening is reached.
• As the process is reversed, downstream pressure begins to increase and the regulator starts closing.
• When the downstream pressure again reaches set pressure the regulator closes bubble-tight.

IMPORTANT: A pressure regulator does not maintain a specific downstream pressure, but only prevents the downstream pressure from exceeding a set point.

Technical specifications of PLAST-O-MATIC PR/PRH/PRHM

PR/PRH

• Converts varying inlet pressure up to 150 PSI, to a stabilized, lower pre-set downstream pressure.
•  This protects sensitive downstream instruments, tubing and filters against damage from overpressure/pressure surges; permits the entire system to operate safely and effectively.
•  Downstream pressure settings adjustable from 10 PSI to 125 PSI; 11/2″ PTFE and 3″ polypro are 5-50 PSI.
•  Large surface area of its frictionless rolling diaphragm provides exceptional sensitivity.
•  Free movement of the diaphragm on a balanced shaft assures smooth, accurate performance and reliable sealing for millions of cycles.
•  Double U-cups prevent leakage along the shaft and eliminates the possibility of “creep.”.
•  Sizes: 1/4″, and 3″ in PVC, Natural PP and PVDF. 1/4″, in CPVC. 1/4″, 1/2″, 3/4″, 1″, 11/2″ in PTFE.
•  New non-rising stem standard on 3/4″, 1″, 11/2″ and 2″ body sizes.

The standard connections are female NPT threaded ports. JIS, DIN, socket, flanged and spigot connections are also available. Standard body materials are Geon PVC, Corzan CPVC, Natural Polypropylene, PTFE and Kynar PVDF. Standard seal materials are FKM or EPDM.
Some Kynar PVDF components are used in the Natural Polypropylene and PTFE models for strength. Glass-filled polypro non-rising stem spring housing (non wetted) used on PP and PTFE models.

PRHM

•  Converts varying inlet pressure up to 150 PSI, to a stabilized, lower pre-set downstream pressure.
•  Protects sensitive downstream tools, instruments, tubing and filters against damage from overpressure/pressure surges; permits the entire system to operate safely and effectively.
•  Downstream pressure settings adjustable from 5 to 125 PSI.
•  Large surface area of its frictionless rolling diaphragm provides exceptional sensitivity.
•  Free movement of the diaphragm on a balanced shaft assures smooth, accurate performance and reliable sealing for millions of cycles.
•  Double U-cups prevent leakage along the shaft and eliminates the possibility of “creep”.
•  For corrosive and ultra-pure liquid applications.

Bodies available in Grade 1 Type 1 PVC, Corzan CPVC, Natural Polypropylene, Kynar PVDF. Some Kynar PVDF components are used in the Natural Polypro models for strength. Seals are FKM (Viton) or EPDM. Custom materials available. Connections in NPT, socket, spigot, flange, flare, sanitary. BSP, JIS and DIN connections available.