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Sanitary stainless steel pressureless round manway

Product Description

Stainless Steel Sanitary Pneumatic Split Rotary Butterfly Valve

A manhole cover is a removable lid for accessing underground infrastructure. It provides safe entry for inspection, maintenance, and repairs of pipelines (sewage, water, gas, telecom), typically installed at pipeline junctions, turns, or intervals.
Ball valve types include floating ball, trunnion-mounted, top-entry, and three-way valves.
Designed to seal pipelines tightly, prevent leaks and external contamination, ensure easy operation, and enable quick on/off control for efficient infrastructure management.


Working Principles

The manhole cover operates by forming a tight seal over manhole openings via its weighted, precision-engineered structure. Its heavy design and often interlocking or bolted mechanism resists displacement from traffic, pressure, or external forces.
Sealing gaskets (where fitted) enhance leakproofing, preventing fluid leakage or debris entry. It is removable—lifted via built-in handles or tools—allowing access to underground pipelines or infrastructure while maintaining safety and structural integrity when closed.








Stainless Steel Butterfly Valve 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



Features

Pneumatic Actuation – Provides fast, automated operation for precise flow control, reducing manual intervention and improving process efficiency.

Split Rotary Disc Design – Ensures smooth, stable flow modulation with minimal pressure drop and accurate control.

Stainless Steel Construction – Durable and corrosion-resistant, suitable for hygienic and high-purity applications.

Leak-Free Sealing – Precision-engineered seats ensure reliable shutoff and maintain sanitary integrity.

Sanitary Surface Finish – Smooth, crevice-free interior surfaces support cleaning-in-place (CIP) and minimize contamination risks.

Compact and Versatile – Space-saving design allows easy installation in pipelines and integration with automated systems













Application

The Stainless Steel Sanitary Pneumatic Split Rotary Butterfly Valve is widely used in industries requiring precise, automated, and hygienic flow control. Typical applications include beverage production for controlled liquid distribution, pharmaceutical manufacturing for sterile fluid handling, biotechnology for media transfer, and food processing where contamination-free, accurate flow regulation is essential

 
JoNeng valves company was started in 2007. Located in the stainless steel industry zone, Wenzhou, China. Totally 130nos of workers and the factory Covers 5000m2.

CALL NOW FOR SERVICE！

 +0577-86658735 / +0577-85319281
    +0577-85319315
 sales003@jo-neng.com
 1306-1B, 1188, YONGDING ROAD,LONGWAN DISTRICT,WEN ZHOU CITY,CHINA
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