Products
The 9950 Transmitter is a two channel controller that supports two sensors of same or different types in one instrument. Includes advanced features such as derived functions, advanced multiple relay modes, and timer based relay functions.
Direct Conductivity/Resistivity Module. The Direct Conductivity/Resistivity Module interfaces Signet 2819-2823 and 2839-2842 Conductivity electrodes directly to the 9900.
Relay Module.This module adds two programmable dry-contact relays to the standard Open Collector output in the base unit.
Horizontal or Vertical Operation
Asahi/America Ball Check Valves employ a free-moving ball which unseats to permit flow in one direction, but seals against a seat to prevent backflow. They may be installed in either vertical or horizontal pipe runs. These ball check valves are rated for 150 psi @ 120°F in the PVC version.
True Union Design - 1/2" through 2"
Asahi/America Ball Check Valves (1/2" through 2" sizes) can be lifted from the line without having to move the piping, simply by loosening the two union nuts. The 3" and 4" versions are manufactured with a space-saving single union design.
Features
• Uniseat / seal of EPDM or FKM • Good flow characteristics • Minimum shut-off pressure of 5 psi • Rated for full vacuum • Mount vertically or horizontally
Options
• Teflon-coated FKM uniseat/seal • Solid thermoplastic ball • Spring-loaded ball to assist ball in seating faster • Foot valve screen assembly