The Saf-T-Matic is an essential component for all flow line applications. This is a safety valve which automatically controls the shut down of flow lines when pressures exceeds or falls below pre-determined limits. The Saf-T-Matic Valve can be used on various applications including oil well flow lines, gas lines, hydraulic lines, or wherever there is a need for high and low pressure limits. It provides complete line protection of high pressure overloads and/or loss of fluids in case of line bursts. The working pressure ranges of the Saf-T-Matic Valve is from 15 psi to 15,000 psi.