Home » Coltri Pressure Relief Valve 250 bar Coltri Pressure Relief Valve 250 bar SKU: 1928 More Views Coltri Pressure Relief Valve 250 bar SKU: 1928 250 bar Final Stage Safety Valve from Coltri for all your air compressors. Coltri Pressure Relief Valve for Better Safety for your compressor. Submarine Manufacturing & Products (SMP LTD) have been UK distributors of Aerotecnica Coltri compressors for over 30 years. For enquiries and pricing on all AEROTECNICA COLTRI products, spares, accessories and consumables please contact SMP Ltd on +44(0)1772 687775 or submit a quote on this website. Be the first to review this product Qty: Add to Quote Add Wishlist Add Compare Download Product Datasheet Description 250 bar Final Stage Safety Valve from Coltri for all your air compressors. Coltri Pressure Relief Valve for Better Safety for your compressor.