Watts APEX XF 1-3/4″ Armless Full-Flow Diaphragm Float Valve

Description

Product Overview

The Watts APEX XF series represents a generation of high‑performance fluid control components designed for demanding agricultural and irrigation environments. This particular model, the 1-3/4 inch XtraFlo version, combines a robust diaphragm mechanism with a sleek armless construction, delivering consistent full‑flow operation while minimizing the risk of damage from livestock or debris. Engineered by Watts Water Technologies, a brand with more than a century of experience in water management, the valve reflects a commitment to reliability, precision engineering, and long‑term durability.

Constructed from UV‑stabilized nylon reinforced with fiberglass, the valve body resists the harsh effects of sunlight, chemicals, and temperature fluctuations. The internal diaphragm is fabricated from acetyl (POM), a high‑strength polymer that maintains flexibility over a wide temperature range and provides a tight seal against backflow. Together, these materials create a corrosion‑resistant assembly that can withstand up to 175 psi of operating pressure, making it suitable for both low‑pressure irrigation lines and higher‑pressure farm water systems.

The armless design eliminates protruding components that could be struck by animals or equipment, reducing the likelihood of mechanical failure. When the valve is in the open position, it delivers an average flow rate exceeding 80 gpm at 60 psi, ensuring rapid filling of troughs and minimizing water waste. In the closed position, the diaphragm seals tightly, preventing reverse flow and protecting downstream equipment from pressure spikes.

Key specifications include a 1-3/4 inch inlet and outlet size, cross‑linked polyethylene inlet connections, and PEX outlet connections. The compact dimensions—11 × 8.6 × 4.1 inches—allow easy integration into existing plumbing layouts, while the two‑port configuration supports versatile routing options. The valve is supplied with a float component that works in tandem with the diaphragm to provide precise water‑level control, making it ideal for troughs that require consistent fill levels.

Installation flexibility is a hallmark of the APEX XF line. The valve offers three mounting configurations: side mount, bottom mount, and top entry, allowing installers to select the most convenient orientation for a given system. All connections are designed for quick, tool‑free assembly, and the valve can be serviced without removing the entire unit, reducing downtime during maintenance or part replacement.

Usage

This valve excels in environments where reliable water delivery is critical. Large dairy farms, livestock operations, and horticultural irrigation systems benefit from its ability to maintain steady water levels in troughs, tanks, and reservoirs. The full‑flow capability ensures that troughs fill quickly, reducing the time animals spend waiting for water and improving overall herd health. Because the valve resists UV degradation, it can be installed outdoors in sunny fields without loss of performance.

Beyond livestock watering, the APEX XF is well‑suited for greenhouse irrigation, hydroponic nutrient delivery, and any application that demands precise water‑level management. The armless diaphragm reduces the chance of snagging on plant supports or equipment, while the robust construction tolerates frequent cycling between open and closed states. Installers can mount the valve on side walls of troughs, beneath the water line, or on top of a pipe manifold, adapting to the unique layout of each facility.

For operators who need to comply with water‑conservation regulations, the valve’s accurate float‑controlled shutoff helps prevent over‑filling and runoff, conserving water and reducing utility costs. Its compatibility with standard 1‑inch and 1‑3/4‑inch plumbing fittings means it integrates seamlessly with existing infrastructure, minimizing the need for additional adapters or custom fittings.

Why Choose Us

Choosing Watts means selecting a partner with a legacy of innovation dating back to 1874. Every APEX XF valve is manufactured under strict quality‑control protocols, and each unit carries a one‑year warranty that covers defects in material and workmanship. Should a problem arise, Watts offers rapid replacement or reconditioning services, ensuring that your operation experiences minimal interruption.

Watts’ commitment to customer support extends beyond the warranty period. Technical assistance is available through a dedicated helpline, and detailed installation manuals, CAD drawings, and video tutorials are provided to guide users through every step of the process. The company also maintains an extensive network of authorized distributors and service centers, guaranteeing that replacement parts and expert advice are always within reach.

Environmental stewardship is another pillar of the Watts brand. The use of UV‑stabilized, recyclable nylon and the design of a long‑lasting diaphragm reduce waste and lower the overall carbon footprint of water‑management systems. By selecting this valve, customers contribute to sustainable farming practices while enjoying the benefits of a high‑performance product.

Key Features

• UV‑stabilized nylon body resists sun damage and corrosion, extending service life in outdoor installations.
• Armless diaphragm design prevents damage from livestock and equipment, reducing maintenance costs.
• Full‑flow performance delivers over 80 gpm at 60 psi, ensuring rapid trough filling and efficient water use.
• Three mounting options (side, bottom, top) provide flexible installation for a variety of system layouts.
• One‑year warranty and dedicated technical support give peace of mind and fast resolution of any issues.

FAQ

What size connections does the valve use?

The valve features 1‑3/4 inch inlet and outlet connections. The inlet is a cross‑linked polyethylene (PEX) fitting, while the outlet uses a standard PEX connection, making it compatible with most agricultural plumbing systems.

Can the valve be used in high‑pressure applications?

Yes. The APEX XF is rated for a maximum operating pressure of 175 psi, which covers the majority of irrigation and livestock water‑distribution scenarios. It maintains reliable sealing performance even at the upper end of this pressure range.

How does the float mechanism work?

The included float rises with the water level and activates the diaphragm to close the valve when the desired level is reached. This automatic shutoff prevents over‑filling, conserves water, and protects downstream equipment from pressure spikes.

Is installation tool‑free?

Installation is designed to be straightforward. The valve’s connections are compatible with standard PEX tools, and the mounting brackets can be secured with basic hand tools. No specialized equipment is required for routine installation or servicing.

What maintenance is required?

Periodic inspection of the float and diaphragm for wear or debris buildup is recommended. The armless design allows easy access to the internal components, and the valve can be serviced without removing it from the system, minimizing downtime.