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JONENG
butterfly valves are available in manual or actuated types, with wafer or clamp connections. Common sizes center on DN25, using 304 or 316L stainless steel bodies, PTFE seats, hygienic design, corrosion resistance, and smooth, easy-to-clean internal surfaces.
The stainless steel aluminum lever lug style fire water butterfly valve operates by rotating a circular disc mounted on a central shaft to control water flow. When the aluminum lever is turned a quarter turn, the shaft rotates the disc from a closed position, where it seals tightly against the resilient seat, to an open position aligned with the pipeline. This simple rotary motion allows rapid opening and closing, which is critical for fire protection systems. The lug-style body enables secure bolting on both sides of the pipeline, providing strong end-line service capability. Stainless steel construction ensures corrosion resistance, while the lever mechanism allows manual, reliable operation without external power, ensuring dependable performance during emergency fire water distribution.
Working Pressure | 10 Bar (Max. Pressure is 16bar for but welded connection in small sizes |
Working temperature | -10ºC TO + 120ºC |
Size | 1/2”-12”, DN15-DN300 |
Grade | AISI304 and AISI316L |
FDA approved gaskets in silicone, EPDM, viton, PTFE | |
Connection | Clamp, Weld, Thread,male threaded; female threaded; flange end;union connection |
Surface | Sanitary inside polish (Ra ≤ 0.8 μm) |
Sanitary outside polish (Ra ≤1.6 μm) | |
Standard | ISO, 3A, SMS, RJT, DIN and so on |
Butterfly valve disc and body is made from forging | |
Manual or pneumatic actuated or electric actuated are chosen as per the different applications. | |
Required compressed air | 4-8Bar |
Connection of compressed air | G 1/8’’ |
Limit switch | 6-36V, DC 2nos of NPN or PNP( to be chose |
Body | Stainless steel AISI316L or AISI 304 (1.4301/1.4404) |
Disc | AISI304 or AISI316L |
Pull-position handle | Stainless Steel Material, Round type or square type |
Multi-position Gripper Handle | ABS gripper handle, SS gripper handle, 2/3/4/12 positions to adjustment, Universal type |
Gasket | EPDM, VITON(FPM), Silicone, different color is available |
Bushing | EPDM or PTFE, other material request |
Nut | Stainless Steel 304 or 316 Material or other request |
Bolt | Stainless Steel 304 or 316 Material or other request |
Stainless steel body provides excellent corrosion resistance and long service life in fire water and harsh industrial environments.
Aluminum lever offers lightweight, quick manual operation, enabling fast shut-off or opening during emergency fire protection situations.
Lug style connection allows secure installation, supports end-of-line service, and ensures strong pipeline alignment and stability.
Resilient seat design delivers reliable sealing performance, minimizing leakage under frequent operation and pressure fluctuations.
Simple quarter-turn mechanism reduces maintenance requirements and ensures dependable, repeatable flow control performance.
Stainless steel sanitary welded manual butterfly valve with pull rod handle is mainly used in industries with high requirements for hygiene standards. The following are several typical industries. Food processing: control liquid flow to ensure the hygiene and stability of the production line. Beverage production: adjust the flow, prevent pollution, and keep the beverage pipeline clean. Dairy products: Regulate milk flow to ensure that pipelines meet hygiene standards. Pharmaceutical industry: Control liquid delivery to meet high hygiene production requirements. Biopharmaceuticals: Control the flow of drug raw materials to maintain pollution-free delivery. Chemical industry: Used for liquid flow control to ensure the hygiene and safety of the pipeline system.
Working Principles
The stainless steel aluminum lever lug style fire water butterfly valve operates by rotating a circular disc mounted on a central shaft to control water flow. When the aluminum lever is turned a quarter turn, the shaft rotates the disc from a closed position, where it seals tightly against the resilient seat, to an open position aligned with the pipeline. This simple rotary motion allows rapid opening and closing, which is critical for fire protection systems. The lug-style body enables secure bolting on both sides of the pipeline, providing strong end-line service capability. Stainless steel construction ensures corrosion resistance, while the lever mechanism allows manual, reliable operation without external power, ensuring dependable performance during emergency fire water distribution.
Specification Chart
Working Pressure | 10 Bar (Max. Pressure is 16bar for but welded connection in small sizes |
Working temperature | -10ºC TO + 120ºC |
Size | 1/2”-12”, DN15-DN300 |
Grade | AISI304 and AISI316L |
FDA approved gaskets in silicone, EPDM, viton, PTFE | |
Connection | Clamp, Weld, Thread,male threaded; female threaded; flange end;union connection |
Surface | Sanitary inside polish (Ra ≤ 0.8 μm) |
Sanitary outside polish (Ra ≤1.6 μm) | |
Standard | ISO, 3A, SMS, RJT, DIN and so on |
Butterfly valve disc and body is made from forging | |
Manual or pneumatic actuated or electric actuated are chosen as per the different applications. | |
Required compressed air | 4-8Bar |
Connection of compressed air | G 1/8’’ |
Limit switch | 6-36V, DC 2nos of NPN or PNP( to be chose |
Valve parts
Body | Stainless steel AISI316L or AISI 304 (1.4301/1.4404) |
Disc | AISI304 or AISI316L |
Pull-position handle | Stainless Steel Material, Round type or square type |
Multi-position Gripper Handle | ABS gripper handle, SS gripper handle, 2/3/4/12 positions to adjustment, Universal type |
Gasket | EPDM, VITON(FPM), Silicone, different color is available |
Bushing | EPDM or PTFE, other material request |
Nut | Stainless Steel 304 or 316 Material or other request |
Bolt | Stainless Steel 304 or 316 Material or other request |
Features
Stainless steel body provides excellent corrosion resistance and long service life in fire water and harsh industrial environments.
Aluminum lever offers lightweight, quick manual operation, enabling fast shut-off or opening during emergency fire protection situations.
Lug style connection allows secure installation, supports end-of-line service, and ensures strong pipeline alignment and stability.
Resilient seat design delivers reliable sealing performance, minimizing leakage under frequent operation and pressure fluctuations.
Simple quarter-turn mechanism reduces maintenance requirements and ensures dependable, repeatable flow control performance.
Application
Stainless steel sanitary welded manual butterfly valve with pull rod handle is mainly used in industries with high requirements for hygiene standards. The following are several typical industries. Food processing: control liquid flow to ensure the hygiene and stability of the production line. Beverage production: adjust the flow, prevent pollution, and keep the beverage pipeline clean. Dairy products: Regulate milk flow to ensure that pipelines meet hygiene standards. Pharmaceutical industry: Control liquid delivery to meet high hygiene production requirements. Biopharmaceuticals: Control the flow of drug raw materials to maintain pollution-free delivery. Chemical industry: Used for liquid flow control to ensure the hygiene and safety of the pipeline system.
