top of page
Logo Atmas group white transparent with frame.png

Vacuum Relief Valves

Atmas provides industrial vacuum relief valves manufactured by Philadelphia Safety Devices for the protection of vessels and process systems exposed to damaging vacuum conditions.
Designed for reliable low-pressure relief performance, these valves help protect industrial equipment from structural damage caused by excessive negative pressure during operation, shutdown, or process upset conditions.

Applications:

PSD vacuum relief valves are commonly used on:

​

  • Dust collectors

  • Cyclones

  • Dryers

  • Silos and storage vessels

  • Pneumatic conveying systems

  • Bulk material handling systems

  • Industrial process vessels

  • Air handling equipment

Key Features:

  • Adjustable vacuum settings

  • Durable industrial construction

  • Corrosion-resistant components

  • Reliable low-pressure operation

  • Compact installation footprint

  • Available in multiple sizes

  • Serviceable design

  • Manufactured in the USA

How It Works

Vacuum relief valves remain sealed during normal operating conditions. When internal vessel pressure drops below the valve’s designated set point, the valve opens automatically to allow atmospheric air into the system.

​

This controlled pressure equalization helps prevent:

  • Vessel collapse

  • Structural deformation

  • Equipment damage

  • Process interruptions

​​

Once pressure conditions normalize, the valve automatically reseals.

Built for Industrial Process Protection

PSD vacuum relief valves are engineered for demanding industrial environments where fluctuating process pressures may occur during material handling, airflow restriction, cooling cycles, or equipment shutdown.
Their adjustable design allows facilities to tailor vacuum protection requirements to specific operating conditions and vessel designs.

Technical Specifications:

  • Vacuum Setting: Adjustable

  • Sizes Available: Multiple sizes available

  • Construction: Industrial-grade metal construction

  • Mounting Style: Vessel-mounted

  • Application: Industrial process protection

  • Manufacturing: USA Manufactured

​

Additional specifications and configurations available upon request.

Contact Form

You are acting as
How can I contact you?

Why We Collect Your Contact Information

We use your contact information to respond to your inquiry and provide the requested information, products, services, or support.

Where appropriate, your inquiry and contact details may be shared with an authorized Atmas Group distributor, partner, or representative responsible for your country, region, or project. We do not sell your personal data.

By submitting this form, you acknowledge that Atmas Group Oy will process your personal data as described in our Privacy Policy, including information about data sharing, storage, protection, and your privacy rights.

bottom of page