Long Term Temperature Pressure Relief Valve PT04-00 All Brass 3/4″ NPT

Description

Product Overview

The Long Term PT04-00 temperature and pressure relief valve is engineered for demanding industrial environments where safety and reliability are paramount. Constructed from a full‑brass body, the valve offers exceptional corrosion resistance and long‑term durability, while the internal stainless steel pressure spring ensures consistent operation over a wide temperature range. With a maximum operating pressure of 150 psi and a temperature relief threshold of 210 °F, the valve automatically vents excess pressure or heat, protecting downstream equipment from damage. The valve features a 3/4 NPT outlet and a 1/2 inlet press connection, facilitating straightforward installation on standard hydraulic and pneumatic lines. Certified to ASME B16.34 specifications, it meets rigorous safety standards for Section IV water heating systems and other high‑pressure applications. The compact dimensions (7.87 × 2.16 × 1.77 in) and lightweight design (9.6 oz) make it easy to integrate into tight spaces without sacrificing performance.

Usage

This relief valve is ideal for a variety of industrial settings, including manufacturing plants, processing facilities, and any system that relies on hydraulic or pneumatic power. It excels in applications such as water heating systems, oil circulation loops, and compressed air networks where pressure spikes or temperature excursions can occur. The valve’s automatic operation eliminates the need for manual monitoring, allowing technicians to focus on other critical tasks. Its robust construction makes it suitable for outdoor installations exposed to harsh weather, as well as indoor environments where cleanliness and reliability are essential. Whether used in a high‑volume production line or a smaller workshop, the PT04-00 provides peace of mind by maintaining safe operating conditions and preventing costly downtime.

Why Choose Us

Choosing the Long Term PT04-00 means selecting a product backed by a reputation for quality and engineering excellence. The all‑brass construction not only resists corrosion but also tolerates the mechanical stresses of frequent cycling. Our valves undergo rigorous testing to verify compliance with ASME standards, ensuring that each unit delivers the performance promised on the specification sheet. In addition, we provide comprehensive technical support and a responsive after‑sales service team ready to assist with installation guidance, troubleshooting, and spare parts availability. Our commitment to durability is reflected in the valve’s long service life, reducing the total cost of ownership for your operation. When you purchase from Long Term, you receive a product that combines precision engineering with practical design, delivering reliable protection for your critical equipment.

Key Features

• All‑brass body provides superior corrosion resistance and long‑term durability.
• Integrated stainless steel spring ensures consistent pressure relief performance.
• 150 psi pressure rating and 210 °F temperature relief protect equipment from overload.
• Standard 3/4 NPT outlet and 1/2 inlet press connections simplify installation on existing systems.
• Comes with dedicated technical support and a reliable after‑sales service network.

FAQ

What types of systems can use this relief valve?

The PT04-00 is suitable for hydraulic, pneumatic, and water heating systems where pressure or temperature spikes may occur. It works well in both industrial machinery and smaller scale equipment that require reliable safety protection.

How do I install the valve?

Installation is straightforward: connect the 1/2 inlet press fitting to your supply line, secure the 3/4 NPT outlet to the downstream pipe, and ensure the valve is oriented correctly so the extension probe points toward the pressure source. Tighten connections to the recommended torque specifications and verify that the valve operates freely before putting the system under pressure.

Is the valve compatible with stainless steel piping?

Yes. The brass body and stainless steel spring are compatible with stainless steel, copper, and other common pipe materials. Use appropriate sealing compounds or gaskets to ensure a leak‑free connection.

What maintenance is required?

The valve is designed for low‑maintenance operation. Periodic visual inspections for corrosion or debris buildup are recommended. If the valve shows signs of sticking or reduced performance, it can be disassembled, cleaned, and re‑lubricated according to the manufacturer’s guidelines.

Does the valve meet any industry standards?

Absolutely. The PT04-00 complies with ASME B16.34 specifications, which cover pressure-temperature ratings, material requirements, and testing procedures for safety‑relief devices used in industrial applications.