Constructed from galvanised spring steel wire (to BS5216 HS3) at a spacing of 2-3 tpi, a wire helix can be added, buried between the plies so that it is not exposed on either the inside or outside of the hose, perfect for high or negative pressure applications or where improved flexibility is required.
Hoses can be supplied with either convoluted or castellated walls where needed. The castellated or convoluted shape allows for more flexibility than standard wire reinforced hose, and the wire helix will allow the hose to perform at negative pressures (not full vacuum).
Depending on working temperature, there are various build options available that allow the hose to function properly between -50ºC and 180ºC.