B400 emergency combined pressure vacuum relief

The B400 Series Emergency Relief Manway ensures that tanks and Vessels are kept safe during periods of excessive pressure due to external fire sources and also allows access to the tank for inspection/cleaning purposes.

• Standard Pressure Settings +4 mbarg to 140 mbarg
• Size range 10″ (250mm) – 24″ (600mm)
• Standard body materials – Aluminium, Carbon Steel and Stainless Steel
• Diaphragm material – FEP
• Machinable Seats
• Standard drilled flanges – ANSI/DIN/API
• Automatic re seat
• Non Standard Applications – consult our product technical experts.

See Brochure for full details: B400