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A safety valve is a valve mechanism for the automatic release of a substance from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. It is part of a bigger set named pressure safety valves (PSV) or pressure relief valves (PRV). The other parts of the set are named relief valves, safety relief valves, pilot-operated safety relief valves, low pressure safety valves, vacuum pressure safety valves.

Safety Valve Specifications:

  • ASME NB/UV, CRN Coded & Non-Coded
  • Brass or Stainless Steel
  • 5 to 600 PSI / -250°F to 400°F
  • 1/8" to 1"

PSI Specification

If ordering online, at Step 4: Review Your Order, enter in the "Review Order Notes" box your PSI in increments of 5 according to the PSI range listed above. If ordering through customer service, be sure to let them know the PSI increment needed.

Ex: 005 (5 psi), 125 (125 psi), 075 (75 psi)

Safety Valves Combo





















Kingston 128AT-2-240 Low Profile Safety Valve with Toggle

Part #: 128AT-2-240
Soft Seat, 1/4" NPT 240 PSI Non-Code
$18.50

KSV10-1-000 Low Profile Safety Valve with Silicon Disc

Part #: 1234054
1/8" 50-275 PSI AMSE Coded
Call For Pricing

KSV10-2-000 Low Profile Safety Valve with Silicon Disc

Part #: 1234055
1/4" 50-275 PSI ASME Coded
Call For Pricing

KSV12-1-000 Low Profile Safety Valve with Silicon Disc

Part #: 1234056
1/8" 25-375 PSI ASME Coded
Call For Pricing

KSV25-2-000 Low Profile Safety Valve with Silicon Disc

Part #: 1234057
1/4" 25-375 PSI ASME Coded (CHOOSE PSI IN NOTES AT CHECKOUT)
$11.00