YY/T 0157-2013压力蒸汽放气阀弹簧试验机，检测压力蒸汽放气阀弹簧承受多次压缩，不会产生永久变形。在室温下，将弹簧放于HRJ弹簧试验机，从自由高度压到并圈高度不少于100次，停放10min，弹簧不产生否永久变形视为合格。

YY/T 0157-2013放气阀弹簧试验机；手动放汽阀弹簧试验机；自动放汽阀弹簧试验机；5kN压力放气阀弹簧试验机；2000N蒸汽放气阀弹簧试验机；HRJ Spring Tester；5000N安全阀弹簧试验机；10kN压力弹簧试验机；8mm放气阀弹簧试验机；20kN阀门弹簧试验机；0.4MPa放气阀弹簧试验机；115℃～150℃蒸汽灭菌阀弹簧试验机；弹簧全启式安全阀试验机；jn-syj.com；300kN医疗器械弹簧试验机；30kN高温阀门弹簧试验机；500kN主蒸汽安全阀弹簧试验机；10kN弹簧交变荷载试验机；5kN弹簧疲劳寿命试验机；C47公共医疗设备；11.080.99有关消毒和灭菌的其他；HRJ Spring Tester；YY 0154-2013安全阀弹簧试验机；圆柱螺旋压缩弹簧疲劳试验机；拉伸弹簧疲劳试验机；扭转弹簧动负荷疲劳试验机；GB/T12242-2005 压力释放装置性能试验规范；GB/T12243-2005 弹簧直接载荷式安全阀；HRJ Spring Tester；GB/T23935-2009圆柱螺旋弹簧设计规范；GB/T12220；GB/T12241-2005；ISO 4126-1；ASTM PTC 25；JIS B 8210；

Pressure Steam Sterilizer Spring Tester；Spring Full Lift Safety Valves Tester；Spring type release on pressure steam sterilizer；Spring full lift safety valves on pressure steam sterilizer；

Safety valves General requirements；HRJ Spring Tester；Performance test code Pressure relief devices；Spring loaded safety valves；Design of cylindrical helical springs；Main Steam Safety Valve Spring Load Tester；Safety Valve Spring Compression Tester；High Load Spring Compression Tester；Steel Helical Spring Compression Tester；Hydraulic Spring Compression Tester；Hydraulic Helical Spring Tester；Automobile Leaf Spring Compression Tester；Spring Safe Factor Tester；Spring Fatigue Tester；Torsion Spring Durability Tester；Spring Ruggedness Tester；HRJ Spring Tester；Seat Leaf Spring Torsion Fatigue Tester；Seat Torsion Spring Durability Tester；Seat Spring Ruggedness Tester；Valve Spring Fatigue Tester；Clutch Diaphragm Spring Tester；Switch Spring Tester；Clock Spring Tester；Clock Spring Torsion Tester；Contact Spring Tester；jn-syj.com；Contact Spring Fatigue Tester；Chair Height Adjustment Gas Spring Tester；Oil Seal Spring Joint Strength Tester；Waveform Sleeve Compression Tester；Large Diameter Seal Spring Tester；Seal Element Spring Tester；Sealing Rings Spring Tester；Reciprocating Compressor Spring Tester；Wiper Rings Spring Tester；Piston Pump Spring Tester；Piston Pump Spring Compression Tester；Hydraulic Axial Piston Pump Spring Tester；Cold Coil Conical Helical Spring Tester；Hermetic Compressor Spring Tester；jn-syj.com；Hermetic Motor Spring Tester；Bogie Coil Spring buffer Tester；Vibration Sieve Spring Load Tester；China Spring Tester；Asia Spring Tester；World Spring Tester；Testing Machines Manufacturer；Mechanics Tester Manufacturer；Tester Service Center；Tester Fittings Supply Center；Test Accessories Design Manufacture Center；Special Test Accessories Center；Testing Machine Accessories；Material Tester Attachment；Material Tester Fixture；

济南恒瑞金试验机有限公司；阀门弹簧试验机制造商；山东省力值硬度计量委员

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