Valves & Actuation

Marquest Throttle Master: Manually Actuated - CPVC \ PTFE

$Marquest Throttle Master: Manually Actuated - CPVC \ PTFE$

Produced in two styles: Globe pattern (straight 180°) and Angle pattern (90°). NSF standard 14 & 61 compliant, FDA, USDA and USP standards met or exceeded. Fine metering control, excellent linearity of flow. No elastomer (O-rings) metals or lubricants. Working pressures to 250 psi @ 70°F.

Marquest Throttle Master: Manually Actuated - CPVC \ PTFE

$Marquest Throttle Master: Manually Actuated - CPVC \ PTFE$

Marquest Scientific’s complete line of Throttle Master™ Needle Valves provide precise control with fine adjustment of corrosive and high purity fluids. The developed metering chamber provides for the most reliable stabilization and linearity of flow. Produced in two styles: Globe pattern (straight 180°) and Angle pattern (90°). Needle finish, SPI/SPE No. 1. Bubble tight, low torque shutoff, long term performance. NSF standard 14 & 61 compliant, FDA, USDA and USP standards met or exceeded. Needle stem is PTFE sealed for excellent chemical resistance

Plast-O-Matic GGS Series Gauge Guard only: Automatic

Advantages of Plast-O-Matic Gauge Guards
• Inexpensive initial investment • Reduces instrument failures • Reduces system down time • Eliminates special alloy instruments • Maximum chemical / temperature compatibility

* “T” in model number refers to PTFE diaphragm, FKM available, change “T” to “V”, prices are the same.

Plast-O-Matic GGS Series Gauge Guard with 2-1/2 IN Stainless Gauge: Automatic - CPVC \ PTFE

$Plast-O-Matic GGS Series Gauge Guard with 2-1/2 IN Stainless Gauge: Automatic - CPVC \ PTFE$

Plast-O-Matic Chemical Gauge Guards should be utilized to isolate and protect pressure or vacuum instruments used on ultra-pure or highly corrosive fluid lines. Utilization of Plast-O-Matic gauge guards offers the added advantage of protection against clogging of instruments caused by suspended solids or highly viscous fluids. Gauge Guards are available with or without gauges.

GGS-Series Gauge Guard with 2-1/2" Stainless Steel Gauges (1/4" gauge connection, 1/2" FNPT process connection)

Plast-O-Matic RVDT Series: Automatic - CPVC \ PTFE

$Plast-O-Matic RVDT Series: Automatic - CPVC \ PTFE$

Series RVDT In-Line Pressure Relief Valves feature a wetted flat PTFE diaphragm to resist both chemical attack and salt crystallization problems. A large, active diaphragm area provides for smooth, chatter-free operation. Relief setting is infinitely adjustable from 5 PSI to 100 PSI. This design functions as a relief valve, by-pass valve, back-pressure valve and anti-siphon valve. The Relief Function protects systems and equipment from over-pressure and pressure surges. The By-Pass Function prevents pumps from “dead-heading”. The Back- Pressure Function maintains necessary reverse pressure in closed-loop systems. The Anti- Siphon Function prevents unwanted chemical siphoning, if city water pressure drops to zero, and changes in elevation create negative pressure. Series RVDT relief valves are constructed of Type 1, Grade 1 PVC, CPVC, Polypropylene, PTFE or PVDF Kynar® body materials. The wetted diaphragm is PTFE, energized by a non-wetted Viton® diaphragm. Springs (not in wetted area) are zinc-plated steel, fasteners are stainless steel and the adjusting screw is polyethylene.

Breadcrumb

Valves & Actuation