McDonnell & Miller 340400 Seal Assembly THPU32HP7Y Its rugged steel construction and

Its rugged steel construction and 700 PSI maximum operating pressure rating make it a reliable choice for technicians prioritizing long-term field performance over generic alternatives

Engineered as a programmable variable speed motor

This boiler pressure gauge features a specialized 0-30 PSIG range

Application-specific configuration

The thermowell (such as the TE-6300W-103) must be ordered separately if not already installed

McDonnell & Miller 340400 Seal Assembly THPU32HP7Y Its rugged steel construction andThe McDonnell & Miller 340400 Seal Assembly, also categorized under model number SA27T 75, is a critical replacement component engineered for use with Series 25 A make up water feeders. Designed to maintain the integrity of the diaphragm seal within the feeder system, this assembly ensures consistent boiler water level control by preventing bypass leakage between the float and valve chambers. This replacement diaphragm assembly is built to withstand