Views: 0 Author: J-VALVES Publish Time: 2025-05-11 Origin: Site
INTRODUCTION:
The J-VALVES WCB ELECTRIC ACTUATED FLANGED GATE VALVE is a key equipment widely used in fields such as petroleum, chemical engineering, and thermal power generation. This article will mainly introduce its testing and inspection standards to help users fully understand the technical specifications and quality requirements of this valve.
I. OVERVIEW OF J-VALVES WCB ELECTRIC ACTUATED FLANGED GATE VALVE
The J-VALVES WCB ELECTRIC ACTUATED FLANGED GATE VALVE is made of high-quality cast steel (WCB) material, featuring high strength, high temperature resistance and corrosion resistance, and is suitable for a variety of industrial scenarios. Its driving modes include manual, pneumatic and electric, which can meet the needs of different working conditions.
II. VALVE TESTING AND INSPECTION STANDARDS
To ensure the quality and performance of the J-VALVES WCB ELECTRIC ACTUATED FLANGED GATE VALVE, its testing and inspection need to follow the following national standards and industry specifications:
Standard Name | Applicable Scope | Main Contents |
GB/T 13927-1992 | Pressure Testing of General Valves | It stipulates the pressure testing methods for the valve shell, sealing surfaces and other components. |
JB/T 9092-1999 | Inspection and Testing of Valves | It addresses the inspection and pressure testing requirements for metal-sealed, elastomeric-sealed and non-metallic-sealed valves. |
GB/T 12243-1989 | Flanged Steel Valves | It stipulates the design, manufacturing and inspection standards for flanged gate valves. |
GB/T 12221-1989 | Face-to-Face and End-to-End Dimensions of Valves | It stipulates the standards for the dimensions of the valve connection end faces and the face-to-face dimensions. |
API 598 | Valve Inspection and Testing in the Petroleum Industry | It provides specific requirements for the sealing and strength testing of valves. |
III. TEST ITEMS AND REQUIREMENTS
According to the above standards, the J-VALVES WCB ELECTRIC ACTUATED FLANGED GATE VALVE needs to undergo the following tests:
1.Shell Strength Test
· Test Pressure: 1.5 times the nominal pressure.
· Duration: 5 minutes.
· Requirement: No leakage and no deformation.
2.Sealing Surface Leakage Test
· Test Pressure: Nominal pressure.
· Duration: 5 minutes.
· Requirement: The sealing surface shall not leak.
3.Low-Pressure Sealing Test
· Test Pressure: Minimum working pressure.
· Duration: 5 minutes.
· Requirement: The sealing surface shall not leak.
4.High-Pressure Sealing Test
· Test Pressure: Maximum working pressure.
· Duration: 5 minutes.
· Requirement: The sealing surface shall not leak.
5.Air Tightness Test
· Test Pressure: Nominal pressure.
· Duration: 5 minutes.
· Requirement: There shall be no leakage in the air tightness test.
IV. QUALITY CONTROL AND FACTORY INSPECTION
Each valve needs to undergo a strict inspection procedure before leaving the factory, including but not limited to the following contents:
1. Visual Inspection
Check whether there are scratches, cracks or other defects on the surface of the valve.
2. Dimension Measurement
Measure whether the face-to-face dimensions, flange dimensions and other dimensions of the valve meet the standard requirements.
3.Performance Testing
Test the opening and closing torque, sealing performance and pressure resistance of the valve.
4.Factory Qualification Certificate
Provide the inspection report and qualification certificate of the valve to ensure that each product meets the relevant standards.
V. SUMMARY
The testing and inspection standards of the J-VALVES WCB ELECTRIC ACTUATED FLANGED GATE VALVE strictly follow relevant domestic and foreign specifications, ensuring its reliability and safety under various complex working conditions. Through the introduction of this article, users can better understand the technical requirements of this valve and its importance in industrial applications.
