Merrill's Product Catalog: Frost Proof Yard Hydrants
Frost Proof Yard Hydrants Several important improvements have been made on the self-closing hydrant over the years. These improvements and the basic design are why we believe the self-closing is the best hydrant of its type in the industry.

Recommended Maximum Operating Pressure 60 PSI (Due to Self-Closing Design)
Most Common submersible pump 1/2 hp, output 10 GPM.
Flow Control Valve Available.

Self-Closing* Stainless steel spring and water pressure closes hydrant.
Benefit - Hydrant shuts off so water is not wasted. Ideal for public use.
Locks Open or Closed Simply push lock button to lock hydrant open or closed. (Available WITHOUT locking pin - so only open when the hydrant head is manually pushed down.)
Benefit - Hydrant can be locked to restrict use if needed.
Brass or No Lead Hose Adapter Heavy-duty solid brass hose adapter for standard 3/4" hose coupling.
Benefit - Standard garden hose thread in long life non-corrosive brass or no lead brass..
Extra Thick Walled Head Casting greatly reduces breakage and insures longer life.
Benefit - Withstands years of use and rough service.
Flow Control Valve Available* Standard hydrant sold without flow control valve, if wanted order separately. To install simply remove top plug.
Benefit - Flow rate can be regulated easily.
Cap Screws Hydrants manufactured after 11/1/77 will have 3/8" x 5/16" self-locking socket head cap screws, and assembled with a locking sealant.
Benefit - Provides strong hold for hydrant head to pipe for years of service.
High Quality Galvanized Pipe 1" extra heavy pipe on outside and galvanized pipe on inside.
Benefit - Corrosion protected for long life.
No Exposed Threads on inside pipe or outside pipe.
Benefit - No uncoated metal to rust for longest life.
Cast Iron Body with Polished Brass Sleeve* for plunger seals to travel in, and pressed into heavy cast iron valve body for strength and economy.
Benefit - Economical smoother sealing surface for plunger seals.
Solid Brass Plunger* Hydrants manufactured after 11/1/78 will have (3) ethylene propylene quad ring seals, self-lubricating and never come out of adjustment, have longer life, and withstand higher pressures.
Benefit - Longest operating life plunger of its type.
Swivel Parts* permit withdrawal of all moving parts without digging up hydrant. A 3/16" Hex Key will allow disassembly of hydrant by simply removing two cap screws and pull up inside pipe with plunger for inspection.
Benefit - Very easy to repair, simple reliable design.
* Exclusive MERRILL Quality Features
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