Specialized standards for specialized supply: Strict DIN/GB separation ensures dimensional compatibility, eliminating misalignment risks.
Sealing Integrity: Precision machining under single-standard protocols prevents leakage from mismatched sealing surfaces.
Customized thickened valve body: Custom-thickened design per HG/T standards enhances pressure resistance and lifespan.
Material Assurance: 100% stainless steel with third-party certifications eliminates counterfeit risks.
Traceable Craftsmanship: ISO9001 casting with permanent markings enables lifetime quality tracking.
Full-process Reliability: Reinforced components exceed standard product performance in strength/sealing/operation.
Design and Manufacture: ASME B16.34; ASME VIII; API 609
Side Flange Standards: ANSI 125LB/150LB; ASME; AS-D/E; BS PN10/16; DIN PN10/16; EN PN6/10/16/25; GB PN6/10/16; GOST; HG/T PN6/10/16/25; JIS 5K/10K/16K
Top Flange (Actuator Mounting) : ISO 5211; GB 90°
Face-to-Face Dimension: ISO 5752; ASME B16.10; EN 588-1
Testing Standards: API 598; EN 12266-1; ISO 5208
Certifications: ISO 9001; CE; BV; API 609; API 598; EAC; SIL3；
Technical description
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Q&A
Specification of the Valve |
|
|---|---|
|
Type of Connection |
Flange |
|
Actuation |
Lever |
|
Size |
1 1/2in ~ 8in (DN40~DN200) |
|
Pressure |
10bar~20bar (1.0mpa~2.0mpa) |
|
Testing Pressure |
256psi |
|
Medium |
Water/Oil/Air |
|
Medium Temperature |
-25℃~180℃ |
Material of the Valve |
|
|---|---|
|
Body |
WCB/ WCC/LCB/ LCC/ LC1 |
|
Disc |
DI/ CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/ HC276/ C95400/ C95800 |
|
Stem |
45#/ SS410/ SS416/ SS420/ SS304/ SS316/ SS316L/ 17-4/ 2205/ 2507/ 1.4529/ K500/ CF8/ CF8M/ HC276 |
|
Seat |
EPDM/ NBR/ SIL/ FKM/ FPM/ VITON/ PTFE/ HYPALON |
|
Coating |
Epoxy Resin 200um -250um |
The following are the representative application industries of this valve. Since butterfly valves can be applied to almost all industries (as long as the temperature and pressure are in line), many industries have not been listed.
WCB butterfly valve (flange type) ensure 100% welding compatibility with carbon steel pipelines, offering seamless integration for petrochemical applications without special processes.
Double flanged butterfly valves are cost-effective, reducing auxiliary system construction costs and enabling rapid maintenance through their standardized design.
Our carbon steel water butterfly valves (flange type) are recommended for neutral municipal main pipelines and budget-limited, short-term water supply projects.
Our flange type marine butterfly valves are suitable for low-pressure (PN10-16) seawater cooling and ballast secondary systems,meeting classification society requirements.
Our flange type PTFE lined butterfly valves operate stably in pH 6-9 media for years, ensuring leak-free performance in urban wastewater networks.
Our sanitary butterfly valves (flange type), with food-grade SIL/EPDM/PTFE lining, operate safely in neutral pH 6-8 environments for food processing applications.
Our flange butterfly valve, featuring wear-resistant copper bearings, provide exceptional durability and high-pressure capability for demanding metallurgical processes.
Our epoxy-coated cryogenic butterfly valves (flange type) offer cost-effective, short-term operation from -30°C to 80°C for refrigeration and cold storage applications.
Marine-grade double flange valve resists chloride corrosion in PN16 desalination systems with 2205/2507 alloys.
Our corrosion resistant butterfly valve simplement JRVAL’s triple anti-corrosion process (galvanized, epoxy, PTFE coated) ensuring a corrosion rate of ≤0.08mm/year. Coupled with full-encapsulated sealing technology, the media leakage rate is remarkably low, less than 0.01%.
For abrasive particulate environments, our butterfly flange valves offer disc/ball options with carbon steel sprayed high-performance ceramic coatings (e.g., tungsten carbide, HRC70+) or full rubber lining, guaranteeing reliable bi-directional zero-leakage sealing (up to ANSI/FCI 70-2 Class VI) upon closure.
Our carbon steel butterfly valves utilize high-quality carbon steel (like WCB, with 15% superior impact toughness than standard). The valve body design is optimized via FEA finite element analysis, ensuring structural stability under vibration frequencies of 0-50Hz and impact acceleration up to 5G.
As a leading OEM butterfly valve manufacturer, we provide non-standard customization solutions tailored to specific client needs such as medium, temperature, and unique dimensions. This allows our valves to be perfectly integrated into space-constrained environments.
Our low temperature butterfly valves are rigorously selected and traceable, conforming to ASTM A352 LCB/LCC or A350 LF2 standards for cryogenic carbon steel. A Material Test Certificate (MTC) is provided for every batch, ensuring reliability in demanding cold applications.
Utilizing advanced CNC machining technology, our CNC butterfly valves ensure precise dimensions and interchangeability of valve bodies and internal components. This reduces assembly difficulty and guarantees accurate, deviation-free installation even in narrow and dense piping layouts.
Our butterfly valve double flange are robustly constructed with hot shell cast valve bodies for enhanced pressure capacity (PN10-PN20). Equipped with copper sleeve bearings for extended wear resistance, they ensure exceptional durability and minimal pressure drop for various water supply systems.
Our hand lever operated butterfly valve provide a 100% intuitive visual indication of the valve’s open/closed state directly from the handle’s position. This clear feedback significantly lowers the risk of misoperation in critical semiconductor ultrapure water systems.
Our HVAC butterfly valves, made from high-quality WCB material, fully meet PN16 pressure ratings, making them ideally suited for central air conditioning water systems operating within 0.6-1.0MPa. A prime example is stable operation in a hotel’s chilled water pipeline for 6 years.
Our centerline butterfly valves, with hard alloy surfacing, offer 3x extended lifespan and enhanced wear resistance for abrasive sewage treatment applications.
Our butterfly valve flange end, when equipped with specialized coatings, is capable of effectively handling corrosive gases such as H₂S and CO₂ prevalent in challenging gas systems.
Our double flange type butterfly valve feature flange connections for easy installation and disassembly, making them ideal for large-diameter heating pipelines. Their robust structure provides strong resistance to water hammer, ensuring long-term operational stability.
"Don't waste your time with 'universal' valves if you have mixed pipe standards. We learned that the hard way with constant leaks, a messy plant, and a costly shutdown. JRVAL delivered valves that fit our old DIN pipes and our new ones perfectly. The leaks stopped immediately.Highly recommend."Read the Case: Mismatched Flanges & Failing Valves? See How JRVAL Solved It. →
Q: The pipe flanges in our factory are in accordance with national standards, and some of the old equipment is in German standards. Can your handle butterfly valves ensure a perfect fit? The one I bought before was in a complete mess due to the flange problem. |
A: This is our core strength. You can provide a detailed list of flange standards. We will precisely process the corresponding standard flanges for your national standard pipes and German standard pipes respectively to ensure a perfect match and eliminate leakage. |
Q: Some of our valves are installed at a relatively high position. When workers operate them, the handles are subjected to a lot of force. The handles of the valves we bought before are all bent. Are your handles sturdy? |
A: JRVAL's handle butterfly valves are designed with full consideration of operational strength. The material and structure of the handle have been optimized, making them more robust and durable than ordinary butterfly valve handles, capable of withstanding normal or even slightly larger operating forces. |
Q:What do you mean by "retaining the original casting surface appearance"? Will it be very rough? |
A: "Retaining the original casting surface appearance" means that the valve body surface has undergone shot blasting or appropriate cleaning, presenting the natural texture of a metal casting, with clear casting characters and an exquisite appearance. This is not rough; rather, it reflects our confidence in the casting process and is also easy to identify. |
Q: We are going to use it on the cooling water pipeline. With high humidity, will the handle rust and get stuck very easily? |
A: Our standard handles will undergo anti-rust treatment. If you have higher requirements for rust prevention, we can provide handles with special coating treatment or upgrade them to stainless steel handles according to your needs to adapt to high-humidity environments. |
Q: If we need handle butterfly valves with JIS 10K flanges of the Japanese standard, can you produce them? |
A: Yes, it's possible. The handle butterfly valves with Japanese standard JIS (such as 10K, 20K, etc.) flanges are also within our production capacity. |
The following are the representative application industries of this valve. Since butterfly valves can be applied to almost
all industries (as long as the temperature and pressure are in line), many industries have not been listed.
Petrochemical Industry
WCB butterfly valve (flange type) ensure 100% welding compatibility with carbon steel pipelines, offering seamless integration for petrochemical applications without special processes.
Power Generation Industry
Double flanged butterfly valves are cost-effective, reducing auxiliary system construction costs and enabling rapid maintenance through their standardized design.
Municipal Water Supply Industry
Our carbon steel water butterfly valves (flange type) are recommended for neutral municipal main pipelines and budget-limited, short-term water supply projects.
Marine/Shipbuilding Industry
Our flange type marine butterfly valves are suitable for low-pressure (PN10-16) seawater cooling and ballast secondary systems,meeting classification society requirements.
Environmental Protection Industry
Our flange type PTFE lined butterfly valves operate stably in pH 6-9 media for years, ensuring leak-free performance in urban wastewater networks.
Food Processing Industry
Our sanitary butterfly valves (flange type), with food-grade SIL/EPDM/PTFE lining, operate safely in neutral pH 6-8 environments for food processing applications.
Metallurgical Industry
Our flange butterfly valve, featuring wear-resistant copper bearings, provide exceptional durability and high-pressure capability for demanding metallurgical processes.
Refrigeration Industry
Our epoxy-coated cryogenic butterfly valves (flange type) offer cost-effective, short-term operation from -30°C to 80°C for refrigeration and cold storage applications.
Seawater Desalination Industry
Marine-grade double flange valve resists chloride corrosion in PN16 desalination systems with 2205/2507 alloys.
Corrosive Environments
Our corrosion resistant butterfly valve simplement JRVAL’s triple anti-corrosion process (galvanized, epoxy, PTFE coated) ensuring a corrosion rate of ≤0.08mm/year. Coupled with full-encapsulated sealing technology, the media leakage rate is remarkably low, less than 0.01%.
Environments with Particulate or Abrasive Media
For abrasive particulate environments, our butterfly flange valves offer disc/ball options with carbon steel sprayed high-performance ceramic coatings (e.g., tungsten carbide, HRC70+) or full rubber lining, guaranteeing reliable bi-directional zero-leakage sealing (up to ANSI/FCI 70-2 Class VI) upon closure.
Vibrating or Impact-Prone Environments
Our carbon steel butterfly valves utilize high-quality carbon steel (like WCB, with 15% superior impact toughness than standard). The valve body design is optimized via FEA finite element analysis, ensuring structural stability under vibration frequencies of 0-50Hz and impact acceleration up to 5G.
Space-Constrained Environments
As a leading OEM butterfly valve manufacturer, we provide non-standard customization solutions tailored to specific client needs such as medium, temperature, and unique dimensions. This allows our valves to be perfectly integrated into space-constrained environments.
Cryogenic Environments
Our low temperature butterfly valves are rigorously selected and traceable, conforming to ASTM A352 LCB/LCC or A350 LF2 standards for cryogenic carbon steel. A Material Test Certificate (MTC) is provided for every batch, ensuring reliability in demanding cold applications.
Densely Routed Industrial Piping Environments
Utilizing advanced CNC machining technology, our CNC butterfly valves ensure precise dimensions and interchangeability of valve bodies and internal components. This reduces assembly difficulty and guarantees accurate, deviation-free installation even in narrow and dense piping layouts.
Water Supply Systems
Our butterfly valve double flange are robustly constructed with hot shell cast valve bodies for enhanced pressure capacity (PN10-PN20). Equipped with copper sleeve bearings for extended wear resistance, they ensure exceptional durability and minimal pressure drop for various water supply systems.
Semiconductor Ultra-Pure Water Systems
Our hand lever operated butterfly valve provide a 100% intuitive visual indication of the valve’s open/closed state directly from the handle’s position. This clear feedback significantly lowers the risk of misoperation in critical semiconductor ultrapure water systems
HVAC Systems
Our HVAC butterfly valves, made from high-quality WCB material, fully meet PN16 pressure ratings, making them ideally suited for central air conditioning water systems operating within 0.6-1.0MPa. A prime example is stable operation in a hotel’s chilled water pipeline for 6 years.
Wastewater Systems
Our centerline butterfly valves, with hard alloy surfacing, offer 3x extended lifespan and enhanced wear resistance for abrasive sewage treatment applications
Gas Systems
Our butterfly valve flange end, when equipped with specialized coatings, is capable of effectively handling corrosive gases such as H₂S and CO₂ prevalent in challenging gas systems
Heating Systems
Our double flange type butterfly valve feature flange connections for easy installation and disassembly, making them ideal for large-diameter heating pipelines. Their robust structure provides strong resistance to water hammer, ensuring long-term operational stability.
"Don't waste your time with 'universal' valves if you have mixed pipe standards. We learned that the hard way with constant leaks, a messy plant, and a costly shutdown. JRVAL delivered valves that fit our old DIN pipes and our new ones perfectly. The leaks stopped immediately.Highly recommend."Read the Case: Mismatched Flanges & Failing Valves? See How JRVAL Solved It. →
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Address: DaZhan Industrial Park, Xiaozhan Town, Jinnan District, Tianjin, China
Copyright @ 2025. Tianjin Jiangrui Steel Casting Co., Ltd.
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