Stainless Steel Adapter 3/8 Inch NPT Female x 3/8 Inch BSPP Male with Sealing Washer, Zinc-Plated Steel Washer with Buna-N Seal, Max Pressure 3700 PSI, Temperature Range -30°F to 200°F

Description

Product Overview

The Stainless Steel Adapter 3/8″ NPT Female to 3/8″ BSPP Male by PRM is engineered for seamless thread conversion in demanding air and water systems. Crafted from 304 stainless steel, the adapter offers exceptional corrosion resistance and long‑term durability, making it suitable for both indoor and outdoor installations. The included zinc‑plated steel washer features a Buna‑N seal, delivering a leak‑free connection that outperforms traditional rubber or metal washers. Rated for a maximum pressure of 3700 psi at 72°F and a temperature range from –30°F to 200°F, this adapter maintains performance under extreme conditions.

Usage

Designed for versatility, this adapter is ideal for a wide range of applications, including HVAC systems, pneumatic tools, water filtration units, and industrial fluid transfer equipment. Whether you are retrofitting an existing pipe network or assembling a new system, the adapter provides a quick and reliable solution for connecting NPT and BSPP thread standards. Its compact size allows installation in tight spaces, and the robust construction ensures it can withstand vibration, abrasion, and exposure to harsh chemicals.

Why Choose Us

PRM is a trusted name in fastener technology, and this adapter reflects the brand’s commitment to quality and performance. Each unit undergoes rigorous testing to verify pressure tolerance, temperature stability, and sealing integrity. The stainless steel body resists rust and staining, while the zinc‑plated washer adds an extra layer of protection against corrosion. Our dedicated customer support team is available to assist with technical questions, and we offer a hassle‑free return policy for added peace of mind.

Key Features

• Effortless conversion from 3/8″ NPT female to 3/8″ BSPP male threads, saving time on installation.
• Durable 304 stainless steel construction provides superior corrosion resistance for long‑term use.
• Includes a zinc‑plated steel washer with a Buna‑N seal for a secure, leak‑free connection.
• Rated for up to 3700 psi and operates safely from –30°F to 200°F, handling high‑pressure and extreme‑temperature environments.
• Backed by PRM’s responsive customer service and a straightforward warranty for confidence in every purchase.

FAQ

What pipe sizes can this adapter be used with?

The adapter is specifically sized for 3/8 inch NPT female threads and 3/8 inch BSPP male threads. It is not compatible with larger or smaller thread dimensions.

Is the adapter suitable for both air and water applications?

Yes, the adapter is designed for use in both air and water systems. Its material and sealing components are selected to resist corrosion from water and to maintain integrity under compressed air pressures.

Can I install this adapter without additional tools?

While the adapter can be hand‑tightened, using a suitable wrench or pipe thread sealant will ensure a proper fit and maximize the rated pressure capacity.

What is the warranty period for this product?

PRM offers a one‑year limited warranty covering manufacturing defects. For detailed warranty terms, please refer to the product packaging or contact our support team.

How does the Buna‑N seal improve performance?

The Buna‑N (nitrile) seal provides excellent resistance to oil, fuel, and many chemicals, delivering a tighter seal than standard rubber washers and reducing the risk of leaks under high pressure.