Zurn Wilkins 34-975XL Pressure Backflow Preventer Wye Design 3/4

Description

Product Overview

The Zurn Wilkins 34-975XL Reduced Pressure Principle Backflow Preventer is engineered to provide reliable protection for water distribution systems in demanding commercial and industrial environments. Constructed from high‑grade brass and stainless‑steel components, the unit meets rigorous ASSE, IAPMO, UL, C‑UL, and CSA certification standards, ensuring long‑term durability and compliance with local plumbing codes. Its compact dimensions of 12 x 5.13 x 8.5 inches and a weight of 11 pounds make it easy to handle during installation while still delivering robust performance.

At the heart of the design is a wye‑pattern configuration that streamlines the flow path, reducing turbulence and pressure loss. This architecture not only shortens installation time but also simplifies future maintenance, as the entire assembly can be serviced in line without the need for disassembly of surrounding piping. The integrated strainer captures debris before it reaches the check valve, protecting the internal mechanisms from wear and extending the service life of the device.

Key specifications include a 3/4 inch inlet and outlet size, a reduced pressure principle that maintains downstream pressure within safe limits, and a fully serviceable first‑check valve that can be accessed without shutting down the entire system. The unit is pre‑assembled with backflow, pressure regulation, and strainer components, delivering a turnkey solution that reduces on‑site labor and material costs.

Designed for versatility, the 34‑975XL model can be deployed in a variety of applications such as municipal water treatment plants, manufacturing facilities, commercial buildings, and any setting where water quality and pressure stability are critical. Its robust construction and thoughtful engineering make it a trusted choice for engineers and facility managers seeking dependable backflow protection.

Usage

In industrial facilities, the Zurn Wilkins 34‑975XL is typically installed downstream of the main water supply line to protect sensitive equipment from backflow events caused by pressure fluctuations. The wye design allows for quick connection to existing pipework, minimizing downtime during retrofits or upgrades. Because the unit is fully serviceable in line, maintenance crews can perform routine inspections, clean the strainer, or replace the check valve without draining the entire system, which is especially valuable in processes that cannot tolerate interruptions.

For commercial applications such as office complexes, hotels, and retail centers, the backflow preventer safeguards potable water supplies by preventing contamination from cross‑connections with non‑potable sources. The reduced pressure principle ensures that downstream fixtures receive consistent pressure, improving the performance of showers, faucets, and fire‑suppression systems. The integrated strainer also helps maintain water clarity by trapping sediments that could otherwise clog downstream filters.

In municipal water treatment and distribution networks, the device serves as a critical barrier against back‑siphonage, protecting public health by preventing the ingress of pollutants into the drinking water supply. Its compliance with multiple certification bodies makes it suitable for use in regulated environments where adherence to strict water safety standards is mandatory.

Why Choose Us

Choosing the Zurn Wilkins 34‑975XL means selecting a product backed by decades of industry expertise and a commitment to quality. Zurn Industries has a reputation for delivering plumbing solutions that combine innovative design with rigorous testing, and this backflow preventer exemplifies that legacy. Each unit undergoes comprehensive performance verification to ensure it meets or exceeds the expectations of engineers, contractors, and end‑users.

Our dedication to customer support extends beyond the point of sale. We provide detailed installation manuals, technical assistance, and a responsive service network that can address any questions or concerns you may have. In addition, the unit’s modular construction allows for easy part replacement, reducing long‑term ownership costs and minimizing the environmental impact associated with premature equipment disposal.

We also prioritize safety and compliance. The 34‑975XL is listed by ASSE, IAPMO, UL, C‑UL, and CSA, giving you confidence that the product meets the highest standards for backflow protection, pressure regulation, and material integrity. This multi‑certification approach simplifies the approval process for projects that must satisfy multiple regulatory agencies.

Key Features

• Wye‑pattern design reduces installation time and lowers labor costs for installers.
• Integrated strainer captures debris, protecting internal components and extending service life.
• Fully in‑line serviceable construction allows maintenance without system shutdown.
• Certified by ASSE, IAPMO, UL, C‑UL, and CSA for reliable performance in regulated environments.
• Dedicated technical support and parts availability ensure quick resolution of any issues.

FAQ

What size fittings does the 34‑975XL use?

The standard model is supplied with 3/4 inch (0.75 inch) inlet and outlet connections, but a 1‑inch version is also available to match larger pipe schedules.

Can the unit be installed in a horizontal pipe run?

Yes, the Zurn Wilkins 34‑975XL is designed for both vertical and horizontal installations. When installed horizontally, ensure the strainer is positioned upward to facilitate debris collection and easy cleaning.

How often should the strainer be inspected?

For most commercial and industrial applications, a visual inspection of the strainer during routine maintenance (typically every 6‑12 months) is sufficient. In environments with high particulate loads, more frequent checks may be advisable.

Is the backflow preventer compatible with existing pressure regulators?

The unit can be installed upstream or downstream of pressure regulators. Its reduced pressure principle works harmoniously with standard regulators, maintaining stable downstream pressure while preventing backflow.

What warranty does Zurn provide for this product?

Zurn offers a limited warranty covering defects in materials and workmanship for a period of one year from the date of purchase, along with optional extended service plans for added peace of mind.