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Aviation History
1954
1954 - 1436.PDF
21 MAY 1954 FLIGHT 9 Reasons for the world-wide supremacy of SAUNDERS S-P. Aero Cocks SAUNDERS Spherical Plug Cocks have taken precedence throughout the world over all other types for the following reasons: They are lighter than other types. A 2-inch diameter cock weighs 1.75 lb. They form a com pact unit with the pipeline. The bore is smooth and equal to bore of pipe giving 100% flow efficiency. SP The Spindle Seal is isolated from pipeline pressure in both OPEN and CLOSED posi tions, preventing leaks and therefore reducing fire hazard. Seal can be repaired without defuelling the aircraft. SP The spherical form is an ideal geometrical construction for intimate contact between sealing surfaces, giving long life without leakage. SP Throughout the ex treme temperature range of from —70° C. to +140° C. the Torque remains low and con sistent. Seizure is BMM Cuwvis SHOwi»a g£. QITE_yaLV» . MMi 1 J4* 1 /^ < sr »** / »'• vtf£- ^£-- HJ JO -O eliminated by the diaphragm resilience. SP Internal thermal relief has always been an inherent characteristic and seizure from hydraulic lock impossible. Pressure relief through the cock at pressure in excess of the working pressure can be arranged without extra parts or cost. SP They are adaptable for all fluids and installa tions and are now used for a great variety of purposes. BiSEiE SAUNDERS VALVE S*53SB Lli Lt i tsltejgTUfsal j| ^(mjjJJuU •** COMPANY LIMITED Aircraft Division BLACKFRIARS STREET HEREFORD
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