Cash Acme EB45 Pressure Regulating Valve, 1 in NPTF - Tamper-Resistant

In this review the Cash Acme EB45 pressure regulating valve is evaluated for plumbers, building managers and homeowners who need consistent, safe water pressure. The bottom line: this direct pressure regulator delivers a reliable, tamper-resistant solution with a compact inline design that is easy to install and service, making it a strong choice when replacing older units or fitting into tight mechanical spaces. Its 1 in NPTF double union connections and metal top construction give the valve a professional feel while the 60 PSI rating with 10-70 PSI adjustability covers most residential and commercial needs.

Key Features

• Direct cartridge access: The half cartridge design provides direct access to the pressure adjusting screw for faster maintenance without removing the entire body.
• Tamper-resistant EB45 design: Locks the set pressure in place so accidental adjustments are avoided, protecting system settings in shared or public installations.
• Double union 1 in NPTF connections: Unions on both sides make swaps and replacements straightforward and speed up service time.
• Durable materials: Made from brass, stainless steel and metallic components for corrosion resistance and compliant with NSF/ANSI 372 for potable water use.
• Tool-free installation: Innovative fitting method with stainless steel teeth and an O-ring compressing for a secure seal, reducing installation time on new or retrofit jobs.
• Adjustable pressure range: Rated to 60 PSI and adjustable between 10 and 70 PSI to suit both low- and high-pressure requirements, including hot water up to 180F.

Who It's For

This valve is aimed at professional plumbers and facility maintenance teams who need a dependable pressure reducing valve that is easy to service and locks settings to prevent tampering. It also suits homeowners replacing aging regulators who want a robust, made-in-USA component with union connections that simplify installation.

Customers who require extremely specialized flow characteristics, integrated gauges, or electronic pressure control should look elsewhere, as this model focuses on mechanical regulation and straightforward adjustability rather than added instrumentation or remote control features.

Pros & Cons

Pros

• Solid build quality from brass and stainless components gives long-term durability in potable water systems.
• Easy, largely tool-free installation with union ends reduces labor time for replacements or retrofits.
• Adjustable 10-70 PSI range and tamper-resistant lock make it versatile for both residential and commercial setups.
• Direct cartridge access simplifies maintenance and adjustments.

Cons

• Does not include integrated pressure gauges, so separate gauges are needed for precise setup verification.
• At 1 in union size it may be excessive for very small residential branch runs where a smaller regulator would be more appropriate.

Specifications

Model	EB45 PVA20M-DUTH-60
Connection	1 in NPTF double union
Rated Pressure	60 PSI (adjustable 10-70 PSI)
Materials	Brass, stainless steel and metallic components
Temperature	Suitable for hot or cold water to 180F
Compliance	NSF/ANSI 372 for potable water
Design	Tamper-resistant EB45 with half cartridge

Our Verdict

The Cash Acme EB45 is a practical, well-built pressure regulator that represents good value for anyone needing reliable pressure control in residential or commercial plumbing. Its tamper-resistant design, union connections and easy serviceability make it a preferred swap for legacy regulators and a solid long-term choice for new installs where straightforward mechanical control and potable water compliance matter.

Frequently Asked Questions

Can this valve be adjusted above 60 PSI?
Yes, the valve is adjustable between 10 and 70 PSI, though it is rated nominally at 60 PSI.

Is it suitable for hot water systems?
Yes, it is rated for both cold and hot water service up to 180F.

Does installation require special tools?
No, the design allows quick insertion with stainless steel teeth and an O-ring to form a secure, largely tool-free seal.