NVENT HOFFMAN PVD02 Pressure plug, IP55

Why Choose the nVent HOFFMAN PVD02 Pressure Compensation Plug?

The nVent HOFFMAN PVD02 is an IP55 pressure compensation plug designed to equalise pressure differences between the inside of an electrical enclosure and the surrounding environment. Temperature fluctuations can create positive or negative pressure within sealed enclosures, increasing the risk of dust and humidity entering and potentially affecting sensitive electrical components.

The PVD02 provides a controlled exchange of pressure through a waterproof membrane, helping prevent a vacuum from developing while allowing built-up humidity to leave the enclosure. It is manufactured from UL94 V-0 plastic with an NBR sealing gasket and is weatherproof and UV-resistant in accordance with UL746(f1).

Installation is straightforward using the integrated PG29 threaded connection and retaining nut, requiring a round 37 mm mounting hole. nVent HOFFMAN recommends installing two PVD pressure compensation plugs on opposite sides towards the top of an enclosure for optimum pressure equalisation.

Key Advantages

• Equalises internal and external enclosure pressure caused by temperature variations.
• Helps reduce the risk of dust and humidity entering electrical enclosures.
• Allows accumulated humidity to leave the enclosure while supporting controlled air exchange.
• IP55 protection for demanding electrical enclosure applications.
• Simple installation through a single 37 mm round mounting hole.
• Weatherproof and UV-resistant according to UL746(f1).

Key Features

• nVent HOFFMAN PVD Series pressure compensation plug.
• IP55 ingress protection rating.
• Plastic construction according to UL94 V-0.
• NBR sealing gasket.
• PG29 threaded mounting with retaining nut.
• Required mounting hole diameter of 37 mm.
• Operating temperature range of -45 °C to +70 °C.
• Approximate air interface of 1.5 cm².
• Light grey finish.
• Recommended mounting torque of 5 Nm.
• Maximum mounting torque of 10 Nm.
• Supplied in a manufacturer pack quantity of 2 pieces.

Effective Pressure Compensation for Electrical Enclosures

Rapid changes in ambient temperature can cause the air inside a sealed electrical enclosure to expand or contract. The resulting pressure differential can encourage moisture and contaminants to enter through seals and other vulnerable areas. The PVD02 provides a controlled pressure path that helps equalise these differences while reducing the risk of dust entering the enclosure.

For optimum pressure compensation, nVent HOFFMAN recommends installing two PVD02 plugs towards the top of the enclosure on opposite sides. This arrangement supports effective air exchange and helps accumulated humidity leave the enclosure, reducing potential hazards to electrical and electronic equipment.

Typical Applications

• Electrical control cabinets and enclosures.
• Industrial automation panels.
• Machine control enclosures.
• Electrical distribution cabinets.
• Enclosures exposed to significant temperature variations.
• Industrial installations requiring pressure equalisation.
• Anti-condensation and enclosure environmental management systems.