S316 Stainless Steel Torispherical Head For Pressure Vessel 700mm Diameter 3mm

1. Brand Overview

As a benchmark manufacturer in the domestic precision pressure vessel component field, Henan Guojiang has been deeply engaged in the R&D, production and customization of torispherical heads for over 12 years. Relying on its pursuit of product reliability and precision, the company's products have been recognized by customers in more than 10 countries worldwide, and it has always focused on meeting the strict requirements of high-standard industrial scenarios, providing stable and reliable core component solutions for global partners.

2. Specifications (700×3 S316)

• Inner Diameter: 700mm, custom-designed for small and medium-sized pressure vessels in chemical, pharmaceutical, food processing and other industries, such as small reactors and liquid transfer storage tanks.

• Nominal Thickness: 3mm, developed based on the conventional working pressure range of 0.1MPa-50MPa and the characteristics of weakly corrosive/non-corrosive media. It optimizes material consumption while ensuring structural stability, achieving an efficient balance between performance and cost.

• Material Selection: Adopts S316 stainless steel, all purchased from domestic first-tier suppliers, with a complete Material Test Certificate (MTC) provided for each batch. This material contains 16%-18% chromium, 10%-14% nickel and 2%-3% molybdenum, offering corrosion resistance far superior to ordinary stainless steel. Its corrosion rate in chloride ion environments is only 1/5 of 304 stainless steel, perfectly meeting the needs of high-hygiene fields such as food and pharmaceuticals.

3. Manufacturing & Processing Advantages

Cold forming technology is adopted for production, which can fully retain the original ductility and weldability of S316 stainless steel. Equipped with advanced hydraulic forming equipment, the company strictly complies with GB/T 25198 and ASME standards during the forming process, ensuring the smooth and uniform curved surface of the torispherical head and effectively avoiding local stress concentration, which meets the forming requirements for pressure vessel components specified in ASME BPVC Section VIII.

4. Quality Assurance

• Inspection Process: Implements a 100% full inspection system, covering ultrasonic testing (UT), penetrant testing (PT) and 3D laser scanning for dimensional accuracy inspection, ensuring each product meets quality standards.

• Compliance Standards: Fully complies with GB/T 25198-2023, ASME BPVC Section VIII Division 1 and PED 2014/68/EU directives, adaptable to industrial regulations in different regions worldwide.

• Certifications: Has obtained ISO 9001:2015 quality management system certification, ISO 14001:2015 environmental management system certification and ASME "U" Stamp approval, fully demonstrating professional manufacturing capabilities.

5. Applications & Market Performance

This 700×3 S316 stainless steel torispherical head is widely used in:

• Chemical industry: Highly corrosive liquid storage tanks, small high-pressure reaction vessels;

• Food and beverage industry: Precision dairy processing tanks, high-end beverage storage and transportation equipment;

• Pharmaceutical industry: Laboratory-grade sanitary reactors, small sterile liquid storage containers;

• New energy and marine fields: Small hydrogen storage tanks, battery material sample mixing tanks and small pressure vessels for offshore operations.

With excellent corrosion resistance and structural stability, the product's market share in the global small and medium-sized pressure vessel market has steadily increased, becoming the preferred supporting component for many multinational enterprises.

6. Packaging & Customization Services

• Packaging Solutions: Export-grade fumigated wooden cases (for single-unit precision packaging); steel pallets (load capacity ≥ 500kg, suitable for bulk orders), providing comprehensive protection for product safety during transportation.

• Customization Services:

◦ Specification customization: Supports personalized parameter customization with inner diameter of 60mm-10000mm and thickness of 1mm-300mm;

◦ Technical support: Provides free finite element analysis (FEA) stress calculation and 2D/3D drawing design services;

◦ Sample service: 3-5 samples can be provided for performance testing, with the sample delivery cycle controlled within 18 working days.

7. Core Product Features

• Reliable Structure: The scientific combination of 700mm inner diameter and 3mm thickness ensures uniform stress distribution under pressure, improving the overall safety performance of pressure vessels;

• Hygienic and Corrosion-Resistant: The S316 stainless steel surface is finely polished (surface roughness Ra ≤ 0.8μm), showing no obvious corrosion marks after salt spray testing, fully meeting the hygiene standards of the food and pharmaceutical industries;

• Cost Optimization: Through precise thickness design and high-quality material selection, it reasonably controls customers' procurement costs while ensuring performance in harsh working conditions.

From raw material procurement to finished product delivery, Henan Guojiang controls quality with strict standards. The 700×3 S316 stainless steel torispherical head, with its stable performance and reliable quality, has become a high-quality component for improving the safety level and operation efficiency of small and medium-sized pressure vessels, and is your trustworthy partner!