{"id":8846,"date":"2026-01-17T21:25:43","date_gmt":"2026-01-17T13:25:43","guid":{"rendered":"https:\/\/www.stvvalves.com\/?post_type=product&p=8846"},"modified":"2026-06-09T12:12:01","modified_gmt":"2026-06-09T04:12:01","slug":"bellow-sealed-globe-valve-din-3356-gs-c25-dn100-pn16-rf","status":"publish","type":"product","link":"https:\/\/www.stvvalves.com\/ar\/products\/bellow-sealed-globe-valve-din-3356-gs-c25-dn100-pn16-rf\/","title":{"rendered":"Bellow Sealed Globe Valve,DIN 3356 ,GS-C25,DN100,PN16,RF"},"content":{"rendered":"

Bellow Sealed Globe Valve DN100 PN16 RF | DIN 3356 GS-C25 Bellows Seal Globe Valve Manufacturer<\/h1>\n

DIN 3356 Bellow Sealed Globe Valve \u2013 GS-C25, DN100, PN16, RF<\/h2>\n

The Bellow Sealed Globe Valve DN100 PN16 RF<\/strong> is engineered for applications where zero stem leakage<\/strong>, operational safety, and long service life are critical. Manufactured according to the requirements of DIN 3356<\/span><\/span>, this valve utilizes a precision-welded stainless steel bellows assembly to provide a hermetic seal between the process medium and the external environment.<\/p>\n

Constructed from GS-C25 cast carbon steel<\/strong>, the valve combines excellent mechanical strength, reliable shutoff performance, and precise flow regulation. It is widely used in steam systems, thermal power plants, heat transfer applications, chemical processing facilities, and industrial utility services.<\/p>\n

Unlike conventional packed globe valves, bellows-sealed designs eliminate fugitive emissions through the stem area, making them ideal for hazardous, toxic, expensive, or environmentally sensitive media.<\/p>\n

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Product Gallery<\/h2>\n
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What Is a Bellows Sealed Globe Valve?<\/h1>\n

A bellows sealed globe valve incorporates a multi-ply stainless steel bellows welded between the stem and bonnet.<\/p>\n

This design creates a permanent metal barrier that prevents leakage through the stem packing area.<\/p>\n

Advantages Over Conventional Globe Valves<\/h3>\n
\n
\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nConventional Globe Valve<\/th>\nBellows Sealed Globe Valve<\/th>\n<\/tr>\n<\/thead>\n
Stem Leakage Risk<\/td>\nPossible<\/td>\nVirtually Eliminated<\/td>\n<\/tr>\n
Environmental Protection<\/td>\nModerate<\/td>\nExcellent<\/td>\n<\/tr>\n
Maintenance Frequency<\/td>\nHigher<\/td>\nLower<\/td>\n<\/tr>\n
Fugitive Emissions<\/td>\nPossible<\/td>\nMinimal<\/td>\n<\/tr>\n
Service Life<\/td>\nStandard<\/td>\nExtended<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

The valve still incorporates a secondary graphite packing system as a backup safety seal.<\/p>\n

\n

Key Features<\/h1>\n

Zero External Leakage<\/h3>\n

The welded bellows assembly prevents media from escaping through the stem area.<\/p>\n

Double Stem Sealing System<\/h3>\n
    \n
  • Primary Seal: Stainless Steel Bellows<\/li>\n
  • Secondary Seal: Graphite Packing<\/li>\n<\/ul>\n

    This dual protection system maximizes operational safety.<\/p>\n

    Precise Flow Regulation<\/h3>\n

    The globe valve design allows excellent throttling performance for:<\/p>\n

      \n
    • Steam systems<\/li>\n
    • Thermal oil systems<\/li>\n
    • Hot water applications<\/li>\n
    • Process control lines<\/li>\n<\/ul>\n

      Long Service Life<\/h3>\n

      The bellows assembly is designed for thousands of operating cycles while maintaining sealing integrity.<\/p>\n

      Low Maintenance<\/h3>\n

      Reduced packing wear results in lower maintenance requirements and reduced operating costs.<\/p>\n

      \n

      Technical Specifications<\/h1>\n
      \n
      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
      Product Name<\/td>\nBellows Sealed Globe Valve<\/td>\n<\/tr>\n
      Standard<\/td>\nDIN 3356<\/td>\n<\/tr>\n
      Nominal Size<\/td>\nDN100<\/td>\n<\/tr>\n
      Pressure Rating<\/td>\nPN16<\/td>\n<\/tr>\n
      Body Material<\/td>\nGS-C25<\/td>\n<\/tr>\n
      Bonnet Material<\/td>\nGS-C25<\/td>\n<\/tr>\n
      Bellows Material<\/td>\nSS316Ti \/ SS321<\/td>\n<\/tr>\n
      Stem Material<\/td>\nSS420 \/ SS431<\/td>\n<\/tr>\n
      Seat Material<\/td>\nStainless Steel Overlay<\/td>\n<\/tr>\n
      Connection Type<\/td>\nRF Flanged<\/td>\n<\/tr>\n
      Face-to-Face<\/td>\nDIN EN 558<\/td>\n<\/tr>\n
      Flange Standard<\/td>\nEN 1092-1<\/td>\n<\/tr>\n
      Testing Standard<\/td>\nEN 12266-1<\/td>\n<\/tr>\n
      Operating Temperature<\/td>\n-29\u00b0C to 400\u00b0C<\/td>\n<\/tr>\n
      Leakage Class<\/td>\nZero Visible Leakage<\/td>\n<\/tr>\n
      Operation<\/td>\nHandwheel<\/td>\n<\/tr>\n
      Optional Actuation<\/td>\nElectric \/ Pneumatic<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
      \n

      Available Material Options<\/h1>\n

      Besides GS-C25, we also manufacture bellows sealed globe valves in:<\/p>\n

      \n
      \n\n\n\n\n\n\n\n\n\n\n\n
      Material<\/th>\nASTM Equivalent<\/th>\n<\/tr>\n<\/thead>\n
      GS-C25<\/td>\nWCB<\/td>\n<\/tr>\n
      GGG40.3<\/td>\nDuctile Iron<\/td>\n<\/tr>\n
      CF8<\/td>\n304 Stainless Steel<\/td>\n<\/tr>\n
      CF8M<\/td>\n316 Stainless Steel<\/td>\n<\/tr>\n
      WC6<\/td>\nAlloy Steel<\/td>\n<\/tr>\n
      WC9<\/td>\nHigh Temperature Alloy Steel<\/td>\n<\/tr>\n
      C12A<\/td>\nF91 Alloy Steel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

      This allows customization for various industrial environments.<\/p>\n

      \n

      Working Principle<\/h1>\n
      \n
      \n
      \n
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      \n
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      5<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

      The valve operates using a linear-motion stem mechanism.<\/p>\n

      Opening Process<\/h3>\n
        \n
      1. Handwheel rotates.<\/li>\n
      2. Stem lifts vertically.<\/li>\n
      3. Disc moves away from seat.<\/li>\n
      4. Flow path gradually opens.<\/li>\n<\/ol>\n

        Closing Process<\/h3>\n
          \n
        1. Stem moves downward.<\/li>\n
        2. Disc contacts seat.<\/li>\n
        3. Flow is restricted and shut off.<\/li>\n
        4. Bellows remain sealed throughout operation.<\/li>\n<\/ol>\n

          This design provides accurate flow control and excellent shutoff performance.<\/p>\n

          \n

          Applications<\/h1>\n

          Steam Systems<\/h2>\n

          One of the most common applications.<\/p>\n

          Suitable for:<\/p>\n

            \n
          • Boiler systems<\/li>\n
          • Steam distribution lines<\/li>\n
          • Condensate return systems<\/li>\n
          • Process steam networks<\/li>\n<\/ul>\n
            \n

            Thermal Power Plants<\/h2>\n

            Used in:<\/p>\n

              \n
            • Main auxiliary steam systems<\/li>\n
            • Feedwater lines<\/li>\n
            • Drain systems<\/li>\n
            • Instrument connections<\/li>\n<\/ul>\n
              \n

              Chemical Processing<\/h2>\n

              Ideal for handling:<\/p>\n

                \n
              • Hazardous chemicals<\/li>\n
              • Toxic fluids<\/li>\n
              • Volatile organic compounds<\/li>\n
              • High-value process media<\/li>\n<\/ul>\n

                The bellows seal prevents emissions and product loss.<\/p>\n

                \n

                Pharmaceutical Industry<\/h2>\n

                Used where contamination prevention is essential.<\/p>\n

                Applications include:<\/p>\n

                  \n
                • Clean steam systems<\/li>\n
                • Process fluid handling<\/li>\n
                • Utility services<\/li>\n<\/ul>\n
                  \n

                  Oil & Gas Facilities<\/h2>\n

                  Suitable for:<\/p>\n

                    \n
                  • Utility systems<\/li>\n
                  • Process piping<\/li>\n
                  • Heat transfer systems<\/li>\n
                  • Chemical injection systems<\/li>\n<\/ul>\n
                    \n

                    District Heating Networks<\/h2>\n

                    Commonly installed in:<\/p>\n

                      \n
                    • Heat transfer stations<\/li>\n
                    • Municipal heating systems<\/li>\n
                    • Hot water distribution pipelines<\/li>\n<\/ul>\n
                      \n

                      Benefits of GS-C25 Material<\/h1>\n

                      GS-C25 is a cast carbon steel equivalent to ASTM WCB.<\/p>\n

                      Advantages include:<\/p>\n

                      Excellent Mechanical Strength<\/h3>\n

                      Suitable for medium-pressure industrial service.<\/p>\n

                      Good Weldability<\/h3>\n

                      Allows easy integration into industrial piping systems.<\/p>\n

                      Cost Effective<\/h3>\n

                      Provides excellent performance at lower cost compared to stainless steel.<\/p>\n

                      Temperature Resistance<\/h3>\n

                      Performs reliably in elevated temperature applications.<\/p>\n

                      \n

                      Quality Assurance<\/h1>\n

                      Every valve undergoes comprehensive testing before shipment.<\/p>\n

                      Standard Tests<\/h3>\n
                        \n
                      • Hydrostatic Shell Test<\/li>\n
                      • Seat Leakage Test<\/li>\n
                      • Bellows Integrity Test<\/li>\n
                      • Functional Operation Test<\/li>\n
                      • Material Verification<\/li>\n
                      • Dimensional Inspection<\/li>\n<\/ul>\n

                        Testing is conducted according to:<\/p>\n

                          \n
                        • EN 12266-1<\/span><\/span><\/li>\n
                        • DIN 3230<\/span><\/span><\/li>\n<\/ul>\n
                          \n

                          Optional Features<\/h1>\n

                          Actuator Options<\/h3>\n
                            \n
                          • Electric Actuator<\/li>\n
                          • Pneumatic Actuator<\/li>\n
                          • Hydraulic Actuator<\/li>\n
                          • Gear Operator<\/li>\n<\/ul>\n

                            Special Seat Options<\/h3>\n
                              \n
                            • Stellite Overlay Seat<\/li>\n
                            • Hardened Stainless Seat<\/li>\n
                            • Soft Seated Design<\/li>\n<\/ul>\n

                              Special Service Configurations<\/h3>\n
                                \n
                              • Oxygen Service<\/li>\n
                              • Thermal Oil Service<\/li>\n
                              • High Temperature Steam Service<\/li>\n
                              • Vacuum Service<\/li>\n<\/ul>\n
                                \n

                                Available Documentation<\/h1>\n

                                Upon request, we can provide:<\/p>\n

                                \u2705 Technical Datasheet
                                \u2705 GA Drawing
                                \u2705 Material Test Certificate EN 10204 3.1
                                \u2705 Pressure Test Report
                                \u2705 Installation Manual
                                \u2705 Operation & Maintenance Manual
                                \u2705 Packing List & Inspection Report<\/p>\n

                                \n

                                Frequently Asked Questions<\/h1>\n

                                Why choose a bellows sealed globe valve instead of a standard globe valve?<\/h2>\n

                                Bellows sealed valves eliminate stem leakage and significantly reduce maintenance requirements.<\/p>\n

                                \n

                                What media can this valve handle?<\/h2>\n

                                Suitable media include:<\/p>\n

                                  \n
                                • Steam<\/li>\n
                                • Water<\/li>\n
                                • Thermal Oil<\/li>\n
                                • Condensate<\/li>\n
                                • Industrial Gases<\/li>\n
                                • Non-corrosive Chemicals<\/li>\n<\/ul>\n
                                  \n

                                  What is the maximum operating temperature?<\/h2>\n

                                  Depending on materials, temperatures up to 400\u00b0C are achievable.<\/p>\n

                                  \n

                                  Can the valve be automated?<\/h2>\n

                                  Yes.<\/p>\n

                                  Electric, pneumatic, and hydraulic actuators are available.<\/p>\n

                                  \n

                                  What industries commonly use bellows sealed valves?<\/h2>\n

                                  Common industries include:<\/p>\n

                                    \n
                                  • Power Generation<\/li>\n
                                  • Chemical Processing<\/li>\n
                                  • Petrochemical<\/li>\n
                                  • Pharmaceutical<\/li>\n
                                  • HVAC<\/li>\n
                                  • District Heating<\/li>\n<\/ul>\n
                                    \n

                                    How long does the bellows last?<\/h2>\n

                                    High-quality bellows assemblies are typically designed for thousands of operating cycles and long-term service.<\/p>\n

                                    \n

                                    Related Products<\/h1>\n

                                    You may also be interested in:<\/p>\n

                                      \n
                                    • DIN Bellows Sealed Gate Valve<\/li>\n
                                    • Bellows Sealed Stop Valve<\/li>\n
                                    • High Pressure Steam Globe Valve<\/li>\n
                                    • F91 Globe Valve<\/li>\n
                                    • DIN Check Valve<\/li>\n
                                    • Pressure Seal Globe Valve<\/li>\n
                                    • API 602 Forged Globe Valve<\/li>\n<\/ul>\n
                                      \n

                                      Request a Quote<\/h1>\n

                                      Looking for DIN 3356 Bellows Sealed Globe Valve Supplier?<\/h2>\n

                                      We provide:<\/p>\n

                                      \u2705 Factory Direct Pricing
                                      \u2705 Fast Production Lead Time
                                      \u2705 OEM & Custom Branding
                                      \u2705 Technical Support Within 24 Hours
                                      \u2705 Worldwide Export Experience
                                      \u2705 Third-Party Inspection Support<\/p>\n

                                      Send Your Inquiry Today<\/h3>\n

                                      Please provide:<\/p>\n

                                        \n
                                      • Valve Size<\/li>\n
                                      • Working Pressure<\/li>\n
                                      • Operating Temperature<\/li>\n
                                      • Media Type<\/li>\n
                                      • Quantity Required<\/li>\n
                                      • Project Specification<\/li>\n<\/ul>\n

                                        Our engineering team will prepare a detailed quotation, technical datasheet, and delivery schedule within 24 hours.<\/p>\n

                                        SEO Keywords:<\/strong> Bellows Sealed Globe Valve DN100 PN16, DIN 3356 Globe Valve, GS-C25 Globe Valve, RF Flanged Globe Valve, Zero Leakage Globe Valve, Steam Globe Valve, Bellows Seal Valve Manufacturer, Industrial Flow Control Valve.<\/p>\n

                                        <\/h1>\n","protected":false},"excerpt":{"rendered":"

                                        STV Valve Technology Group Co., Ltd is a professional leader China DIN 3356 Bellow Sealed Globe Valve,Cast Steel Bellow Sealed\u00a0 Globe Valve,DN100 Bellow Sealed\u00a0 Globe Valve,PN16 Bellow Seal Globe Valve,RF Bellow Sealed\u00a0 Globe Valve,Flange Bellow Sealed Globe Valve Manufacturer with high quality and competitive price.<\/p>\n

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