YJZQ/KHB Series 316L 304 Stainless Steel High-Pressure Ball Valve with Internal/External Threads for High-Temperature Applications

Product Overview

YJZQ/KHB series stainless steel high-pressure ball valves are key pipeline control components specially designed for corrosive, high-temperature and high-pressure working conditions. The product adopts high-quality stainless steel for integral forging or casting, combined with precise thread interfaces and reliable sealing technology, and performs excellently in chemical, petrochemical, shipbuilding, energy, food and pharmaceutical industries. Its flexible internal and external thread design enables it to be easily integrated into various equipment and pipeline systems, making it an ideal choice for controlling corrosive media, high-temperature oil products and ultra-pure fluids.

Detailed Explanation of Product Features and Advantages

1. Stainless Steel Valve Body, Corrosion Resistant and Durable

• 304 Stainless Steel: A general-purpose chromium-nickel stainless steel with good corrosion resistance, suitable for most mildly corrosive media such as water, steam, and weak acid-alkali solutions.
• 316L Stainless Steel: Molybdenum-added, with stronger pitting corrosion and intergranular corrosion resistance, it is the first choice for chloride environments (such as seawater) and strong acid-alkali media.

2. High-Pressure Design, Safety Foundation

• The valve body adopts a thickened wall design, and the structure is optimized through Finite Element Analysis (FEA) to ensure long-term stable operation under 31.5MPa and higher pressure.
• Strict factory testing: Each valve undergoes a strength test of 1.5 times the nominal pressure, with sufficient safety margin.

3. Thread Connection, Flexible and Convenient

• Internal Thread (Common in YJZQ): After installation, the outer wall of the pipeline is smooth, occupying small space, beautiful and anti-collision.
• External Thread: High connection strength, good anti-vibration performance, and easy installation.
• International Standards: Provides various thread standards such as BSP (British), G (Metric), NPT (American), meeting global procurement needs.

4. High-Temperature Sealing, Stable Performance

The valve seat sealing ring adopts reinforced PTFE (RPTFE), PPL (polyphenylene) or metal sealing, which can maintain elasticity and sealing performance at high temperatures, avoiding leakage caused by thermal deformation.

5. Precision Manufacturing, Smooth Control

• The ball surface is subjected to hard chrome plating or ultra-precision grinding, which is as smooth as a mirror, with low friction coefficient, small operating torque and light opening and closing.
• Quick Opening and Closing: A 90-degree right-angle rotation can realize full opening or full closing, facilitating quick cut-off or connection of fluid.

Detailed Technical Parameters Table

Typical Application Fields

• Chemical Processes: On-off control of various corrosive media such as acids, alkalis and solvents.
• Ship and Marine: Seawater cooling systems, ballast water systems, fire-fighting systems.
• Food and Pharmaceutical: CIP/SIP systems, high-purity water, food slurries (316L and above materials required).
• Energy and Power: Boiler steam systems, feed pump sealing water, flue gas purification systems.
• Industrial Equipment: Ultra-high pressure cleaning machines, test benches, hydraulic systems.

Selection Guide: 304 vs 316L

Our Advantages

• Material Traceability: Provide material certificates to ensure that the material of each valve meets the standards.
  
• Full Pressure Testing: 100% pressure test and helium mass spectrometry leak detection before leaving the factory to ensure zero leakage.
  
• Technical Support: Provide professional technical selection support to help you choose the most suitable solution according to specific working conditions.
  
• Fast Delivery: Sufficient inventory of conventional models, short production cycle for special orders.