Marine Type Approvals held for these valves: American Bureau of Shipping, Bureau Veritas, DNV,Germanischer Lloyd, Lloyds Register.

Angular shaped springloaded safety valves made of gunmetal with stainless steel spring. Internal parts are made of gunmetal and seawater resistant. Suitable for the protection of pressure tanks and systems for nonneutral and neutral gas, steam and liquids, and of steam boilers. Also suitable for combustible and toxic gas, steam and liquids.

Available three models in: Gunmetal with Stainless Steel Spring: 852, Stainless Steel: 452 , Spheroidal Graphite Cast Iron: 352. Model 852/452/352 tGFO gastight without lifting device, Model 852/452/352 tGFL gastight with lever for lifting, Model 852/452/352 bGFO gastight with bellows without lifting device, Model 852/452/352 bGFL gastight with bellows with lever for lifting.

Available seals: NBR, EPDM, FKM, PTFE, PTFE+carbon (standard from 25 bar), FFKM, metaltometal sealing Model 852bGFL: Gastight with Bellows and Lever for Lifting