Detail of JB/T 7352-2010

Introduction of JB/T 7352-2010

1 Scope This standard specifies the terms and definitions, classification and basic parameters, requirements, test methods, inspection rules as well as marking, packaging, transportation, storage and warranty period of the solenoid valve for industrial-process measurement and control systems (hereinafter referred to as the "solenoid valve"). This standard is applicable to the solenoid valves for which the clean liquid, gas and steam are taken as the working media and whose on/off control function is realized in the pipeline. This standard is not applicable to hydraulic and pneumatic solenoid directional valves. 2 Normative References The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments (excluding corrigendum), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated reference, the latest edition of the normative document referred to applies.

Contents of JB/T 7352-2010

Foreword I 1 Scope 1 2 Normative References 1 3 Terms and Definitions 2 4 Classification and Basic Parameters 2 4.1 Classification 2 4.2 Basic Parameters 3 5 Requirements 4 5.1 Working Pressure Differential 4 5.2 Insulation Resistance 4 5.3 Insulation Strength 4 5.4 Leakage 4 5.5 Tightness 5 5.6 Pressure Strength 5 5.7 Humidity Impact 5 5.8 Permissible Temperature of the Coil 5 5.9 Rated Flow Coefficient 5 5.10 Action Life 6 5.11 Response Time 6 5.12 Mechanical Vibration Impact 6 5.13 Transportation Temperature Impact 7 5.14 Transportation Impact 7 5.15 Appearance 7 5.16 Protectiveness 7 6 Test Methods 7 6.1 Test Conditions and General Requirements 7 6.2 Working Pressure Differential Test 8 6.3 Insulation Resistance Test 8 6.4 Insulation Strength Test 8 6.5 Leakage Test 9 6.6 Tightness Test 9 6.7 Pressure Strength Test 9 6.8 Humidity Impact Test 10 6.9 Determination for the Permissible Temperature of the Coil 10 6.10 Rated Flow Coefficient Test 11 6.11 Action Life Test 12 6.12 Response Time Test 13 6.13 Mechanical Vibration Impact Test 13 6.14 Transportation Temperature Impact Test 14 6.15 Transportation Impact Test 14 6.16 Appearance Inspection 14 6.17 Protectiveness Test 14 7 Inspection Rules 14 7.1 Inspection Types 14 7.2 Inspection Items 14 7.3 Batching Rules 15 7.4 Delivery Inspection 15 7.5 Type Inspection 15 8 Marking, Packaging, Storage and Quality Warranty 16 8.1 Marking 16 8.2 Packaging 17 8.3 Transportation and Storage 17 8.4 Quality Warranty 17 Appendix A (Normative) Nonconformity Classification 18 Figure 1 Electrical Connection of the Solenoid Valve 10 Figure 2 Structure of Pressure Taps 11 Figure 3 Response Time Test Device 13 Table 1 Rated Supply Voltage of the Solenoid Valve In V 3 Table 2 Working Conditions of the Solenoid Valve 4 Table 3 Insulation Strength Test Voltage In V 4 Table 4 Permissible Leakage In mL/min 4 Table 5 Permissible Temperature of the Coil 6 Table 6 Specified Value of the Rated Flow Coefficient 6 Table 7 Times of Action Life 6 Table 8 Holding Time of Pressure Strength Test 9 Table 9 Test Environment Temperature under Permissible Temperature of the Coil 10 Table 10 Standard Test Section 11 Table 11 Action Life Test Pressure In MPa 13 Table 12 Delivery/Type Inspection Items 15 Table A.1 Nonconformity Classification of the Solenoid Valve Product 18