Cash Acme EB45 Pressure Regulating Valve, 3/4 in NPT

In this review of the Cash Acme EB45 pressure regulating valve the bottom line is simple: this is a compact, well-built pressure reducer for residential or light commercial plumbing where reliable downstream pressure control and easy installation matter. The reviewer found the valve's tamper-resistant EB45 design and half-cartridge access to the adjusting screw the single biggest reason to buy, because it locks the setting in place and still allows convenient service access without replacing the whole body.

Key Features

• Tamper-resistant EB45 design: Locks in the desired downstream pressure to prevent accidental adjustments and maintain consistent water delivery.
• Half-cartridge access: Allows direct access to the pressure adjusting screw for easier servicing while keeping overall costs closer to a traditional regulator.
• Tool-free installation: The quick-fit system grips the pipe with stainless steel teeth and an O-ring for a secure, leak-resistant connection without complex fittings.
• Durable construction: Brass, stainless steel and polymer components resist corrosion and are compliant with NSF/ANSI 372 for potable water use.
• Wide adjustment range: Factory-rated at 60 PSI and adjustable from 10 to 70 PSI to suit many household and light commercial needs, for both hot and cold water up to 180F.

Who It's For

The Cash Acme EB45 suits plumbers, property managers and homeowners who need a compact pressure regulator that is easy to install and service. It is especially useful where a tamper-resistant setting is important, such as multi-family buildings or commercial fixtures where unauthorized changes could cause problems.

Those who need a very large flow capacity for industrial systems or who require specialized fittings beyond 3/4 in NPT thread should look elsewhere; similarly, users who want an electronic or remote-adjustable regulator will need a different product.

Pros & Cons

Pros

• Solid build quality from brass and stainless parts provides long-term reliability in potable water systems.
• Easy, mostly tool-free installation reduces installer time and simplifies swaps during maintenance.
• Tamper-resistant adjustment offers protection against accidental or unauthorized pressure changes.
• Adjustable range up to 70 PSI covers most residential and light commercial needs.

Cons

• Some customers reported mixed results on leak prevention, so careful installation and inspection are still required.
• A few users found the valve somewhat restrictive for certain low-pressure fixtures like some showers or sinks.

Specifications

Brand	Cash Acme
Model	EB45 pressure regulating valve (PVA16P-DTH-60)
Connection	3/4 in NPT threaded
Rated pressure	60 PSI (adjustable 10 to 70 PSI)
Temperature	Cold or hot water to 180F
Materials	Brass, stainless steel and polymer; lead-free, NSF/ANSI 372 compliant
Design	Tamper-resistant EB45 with half-cartridge access

Our Verdict

The Cash Acme EB45 is a practical, value-oriented pressure regulator for homeowners and light commercial applications that need reliable pressure control and easy servicing. Its tamper-resistant design and robust materials make it a smart choice for installations where a locked, adjustable pressure setting matters, though installers should verify fit and watch for potential restrictions on certain fixtures.

Frequently Asked Questions

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

How is the valve installed?
It uses a quick-fit style where the pipe is inserted, stainless steel teeth grip, and an O-ring compresses to form a sealed connection; final tightening and leak checks are recommended.

Can the pressure be locked after adjustment?
Yes. The EB45 tamper-resistant design lets you lock the desired system pressure to prevent accidental changes.