Phone: +44 1462 480121
Address: Unit 25, Business Centre West,
Avenue One, Letchworth Garden City, Hertfordshire, SG6 2HB
United Kingdom

STL Power & Process Controls – Energy Under Control

Call Us: +44 1462 480121

Check Valve


  • Designed to comply with API 6D, API 6A & API 594 specifications
  • Available in a wide range of materials including 316 stainless steel trim
  • NACE MR0175 / ISO 15156 (optional)
  • Externally adjustable shaft packing gland & back- flush lever is standard
  • Available with either right-hand or left-hand lever orientation

Check valve

PdfCheck valve


Installation and maintenance manuals

PdfCheck valve