2900-40 Series Pilot Operated Safety Relief Valve

Consolidated 2900-40 Series Pilot Operated Safety Relief Valve

Inlet Sizes

1” through 12”

Inlet Ratings

ASME Class 150 to 2500

Outlet Sizes

2” through 16”

Outlet Ratings

ASME Class 150 to 300

Orifice Sizes

D through W

Set Pressure Range

40 psig to 5800 psig

Temperature Range

-20°F to 505°F, above 505°F with heat exchanger


Carbon steel base and 316 stainless steel internal components; pilot valve 316 stainless steel

Standards and Regulations

ASME B & PVC, Section 1 (Steam & Liquid)

Pressure Equipment Directive

China Manufacturing License


Hydro plug is not required since pilot can be gagged.

Non-flowing pilot design.

Maximizes throughput by allowing economizer to operate at higher pressures with the use of pilots without seat leakage. Increases efficiency by providing repeatable seat tightness.

For overpressure protection of economizers when a liquid certified safety relief valve or pilot operated safety relief valve cannot be used due to a steam relief scenario.  ASME Section 1 certified on steam and water per ASME Code Case 2446.

Includes pilot line pressure snubber to minimize chatter from rapid pressure excursions and water hammer.