Q Seal – Valves
Q-Seal Critical Valve Sealant is an engineered solution to address the problem of leaks within process critical valves, with no risk, and without impacting the operation of the valve, or requiring removal of the valve from the processing system.
Q-Seal Critical Valve Sealant consists of a suspension of sealing micro-particles distributed within a viscous matrix, which also has valve lubricating properties. The product is injected into the valve lubricating port or stem packing chamber where it migrates to, and seals, the leak site. It can restore integrity in both elastomeric and metal to metal seals.
Q-Seal Critical Valve Sealant does not cure or set-up to seal – it remains in its original state throughout the life of the repair, so does not negatively impact access to service or test cavities, or operation of the valve. The sealing mechanism is the result of mechanical pack-off of the independent sealing particles contained within the carrier matrix, which rebuild the original seal. As the body of the material remains in its original state, as soon as the leak is fixed, any surplus matrix remains in the cavity, behind the seal face. The excess particles remain dispersed in suspension behind the original leak site. Should the leak aperture increase, or material be lost during cycling of the valve, more material is carried into the new or reopened leak to reinforce the seal. As soon as the seal is effective, the carrier again ceases to move and remains ready to repeat the process as soon as a new leak path appears.
Q-Seal has also been effectively used to repair actuator stem seals on actuated valves. The use of Q-Seal does not impact the operation of the repaired valves.
Q-Seal technology is the product of extensive development and testing. We understand that one solution does not fit all situations, so each valve application is individually investigated to ensure that the solution is appropriate to the leak mechanism, and delivered in the most effective manner.