21 Make-Up Water Feeder Model 21 by McDonnell & Miller (a xylem brand)
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The McDonnell and Miller Model 21 is a make-up water feeder engineered specifically for boiler receiver tanks. This unit features a direct mounting design that completely eliminates the need for equalizing connections during installation. Operating with a proportional feed action, the device utilizes a soft seat to provide a positive seal against water flow. The feeder is constructed with a mounting flange containing six 7/16 inch bolt holes situated on a 5 and 3/4 inch bolt circle. In terms of operational limits, the feeder handles a maximum water supply pressure of 150 psi and a maximum inlet water temperature of 120 degrees Fahrenheit, while withstanding a maximum vessel pressure of 35 psi.
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Frequently Asked Questions(FAQ):
Where can I buy 21 by McDonnell & Miller (a xylem brand) in the USA?
You can purchase 21 by McDonnell & Miller (a xylem brand) from PAOParts LLC. We serve customers across the USA, offering competitive prices and reliable service.
What is the price of the 21?
Price and availability are quoted per request. Send the part number and the quantity you need through our quote request form and you will receive a written offer by e-mail.
Who is the official distributor or seller of McDonnell & Miller (a xylem brand) in the United States?
While we are not the official distributor or seller of McDonnell & Miller (a xylem brand) in the United States, we source our products from reliable channels and offer you original McDonnell & Miller (a xylem brand) equipment at competitive prices.
How can I access 21 catalogs, user manuals, technical documents, and PDFs?
Ask for them in your quote request. We attach the datasheet, catalogue page or manual we hold for 21 to our written reply.
Do you provide technical support for 21?
While we do not offer direct technical support, we can assist you in contacting the manufacturer to ensure you receive the support you need.
Characteristics
| Manufacturer | McDonnell & Miller (a xylem brand) |
|---|---|
| Part number | 21 |
| Inner Code | 4434810 |
Technical specification
| Product type | Make-Up Water Feeder |
|---|---|
| Mounting Flange | six 7/16 inch bolt holes on a 5-3/4 inch bolt circle |
| Maximum water supply pressure | 150 psi (10.5 kg/cm2) |
| Maximum inlet water temperature | 120°F (49°C) |
| Maximum vessel pressure | 35 psi (2.5 kg/cm2) |