Cash Acme EB45 Pressure Regulating Valve 3/4 in NPTF

In this review of the Cash Acme EB45 pressure regulating valve, the bottom line is simple: it is a solid choice for contractors and homeowners who need a compact, reliable water pressure regulator that is straightforward to install and lock at a set pressure. The reviewer found the EB45 particularly useful when replacing older units or swapping in a different brand because of its double union connections and easy, tool-free installation. For anyone wanting to reduce downstream pressure and eliminate pressure spikes, this valve delivers practical performance with a tamper-resistant design.

Key Features

• Direct cartridge access: The half cartridge design gives direct access to the adjusting screw so fine pressure changes are quick and serviceable.
• Tamper-resistant EB45 design: The locking feature secures the chosen system pressure against accidental adjustments for consistent operation.
• Quick tool-free installation: Stainless steel teeth and an O-ring allow pipe insertion and a secure seal without special tools, saving install time.
• Durable materials: Brass, stainless steel, and polymer components reduce corrosion risk and meet potable water regulations.
• Wide adjustable range: Factory rated to 60 PSI with adjustment between 10 and 70 PSI to suit many residential and light commercial needs.
• Hot and cold service: Rated for use with hot water up to 180F, so it works on both supply lines and mixed systems.

Who It's For

The Cash Acme EB45 is aimed at plumbers, building maintenance technicians, and experienced DIYers who need a compact inline regulator with union connections for easy replacement. It is especially suited for jobs where a tamper-resistant setpoint and quick changeover are valuable, such as multi-family dwellings or mechanical rooms.

Those who should look elsewhere include users needing integrated gauges or electronic control, or installations requiring sizes other than 3/4 in. NPTF. For specialty industrial systems with exotic fluids or temperature extremes beyond 180F, a different regulator would be more appropriate.

Pros & Cons

Pros

• Easy to install with tool-free pipe insertion and tight stainless steel grip for a reliable seal.
• Solid build quality from brass and stainless parts provides long service life in potable water systems.
• Tamper-resistant lock keeps set pressure steady and prevents accidental changes.
• Adjustable range up to 70 PSI gives flexibility for varied plumbing needs.

Cons

• Does not include an integrated pressure gauge, so a separate gauge is needed for precise setup.
• Only available in the 3/4 in. double union inline configuration described, so other sizes require different models.

Specifications

Our Verdict

The Cash Acme EB45 is a dependable pressure regulator that balances durability, straightforward installation, and a tamper-resistant feature that contractors appreciate. It is good value for projects requiring a 3/4 in. inline regulator for potable water where a locked setpoint and quick union swap are priorities. Pair it with a separate gauge during setup and it will serve reliably in residential and light commercial systems.

Frequently Asked Questions

Can this valve be used on hot water?
Yes. The valve is rated for hot and cold water service up to 180F.

What pressure range can be set?
The unit is rated to 60 PSI and can be adjusted between 10 and 70 PSI.

Is installation tool-free?
Yes. The design allows pipe insertion with stainless steel teeth and an O-ring to form a secure seal without special tools.