شیرهای اطمینان انواع مختلفی دارد که در این قسمت به معرفی سری های مختلف این محصول خواهیم پرداخت.

  • Series 4000: Spring Loaded Safety Relief Valves
  • Series 4200: Conventional Type
  • Series 4400: Balance Bellows Type
  • Series 4500: Conventional Type Acc. to ASME Section I

Series 4200 and 4400 spring loaded safety relief valves have been designed according to API 520 and ASME Section VIII. The range of size and rating for these series are according to API 526 from 1 D 2 up to 8 T 10 from Class 150# up to Class 2500#.  Also, high pressure design for large orifices Q, R and T are available acc. to costumer's request. Series 4500 has been designed according to ASME SEC I for steam drum, superheater, economizer and other power plants applications.

VIRCO 4200, 4400 and 4500 Series safety relief valves present the simple safe solution for heavy duty applications, such as crude oil extraction, transportation and processing in

  • Refineries
  • Petrochemical Industries
  • Oil and Gas- Onshore and offshore
  • Vessels and piping systems
  • Blow-down systems
  • Storage Tanks
  • Power plants