The manifold is mounted on a rigid stainless steel frame with integral cylinder restraint chains complete with snap shut clips. Gas is supplied to the manifold via high pressure tailpipes into the manifold header pipe with each individual tailpipe protected by non-return valve to prevent cylinder back filling. The centrally mounted regulator block is fitted with high pressure isolation valves each side to provide easy duty or reserve bank selection, high pressure quick action shut- off valve, a 1.5 bar manifold regulator to BS EN ISO 7291, safety slam shut valve or pipeline pressure relief valve, 1/2" BSP line isolation valve and flashback arrestor offers a complete pressure control package whilst also ensuring ease of installation on site.