3A Hygienic Check Valve , Non Return Check Valve High Sealing Function

Specification:

Sizes are available from 1/2" to 4" (1/2", 3/4", 1”, 1 1/2", 2", 2 1/2", 3", 4")
DN15 to DN100 (DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100)
Valve body can be AISI 304 or AISI 316L.
Valve seat: EPDM, VMQ (silicone), Viton (FPM).
End connection can be butt-welded, sanitary clamp, threaded or others upon request.
Max. working pressure: 145psi (10bar)
Opening pressure: 4.5psi/0.3 bar (DN25/1"), 3 psi/0.2 bar (DN32/0.75" to DN40/1.5"), 1.5 psi/0.1 bar (DN50/2" to DN100/4")
Working temperature range: 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.
Surface treatment: Ra 32μin (0.8μm) as default, others available upon request.

Strength:

• Material of stainless steel 316L and 1.4404 is from reputed mill to guarantee the chemical composition and mechanical propertis. Material certificate will be submitted follow to orders.
• Forged valve body and disc to control the leakage and visual.
• Superior facilities and good experiences for fabrication.
• In ability to improve and develop new design.
• Fast delivery is possible to meet your needs well in time.
• Low cost from bulk production will reduce your budget and improve your business.
• Small quantity available.

Quality & Inspection:

• PMI test to verify material grade
• Dimension controlling during fabricating and finished
• Visual and surface 100% examination before shipment
• Packed in carton box firstly, then in wooden case
• Third party inspection available.

Design:

• Forged valve body ensures non-porous, smooth surfaces and stable structure.
• Compact and simple structure makes sanitary check valve easy to clean and maintain without special tools.
• Sanitary weld check valve Male check valve and Sanitary Tri Clamp Check Valve are two splitted design, assembled by a clamp and sealed with a gasket.
• Sanitary union type check valve is basically consist of a valve body, a cover and a nuts in threaded union form.
• Ribbed construction of the stainless steel disc resists heavy pressure hammer, minimizes the resistance to flow and also serves as a guide to the valve plug.
• Eccentric design allows the check valve installing vertically or horizontally.

Features:

• various end connections available
• sizes from ½" thru 4"
• operating temperature range: 15°F to 200°F
• maximum operating pressure: 145 PSI
• 3A authorized 58-00
• full size flow plate
• long stem bushing for increased cycle life
• suitable for low and medium viscosity fluids
• field serviceable (no special tools required)

Are different to many other types of valves,for check valves work automatically and most are not controlled by a person or any external control. Accordingly, most do not have any valve handle or stem. Thus there is an important concept in check valves, it is, the cracking pressure. Cracking pressure is the minimum upstream pressure at which the valve will operate. So the check valve is designed for and can therefore be specified for a specific cracking pressure.

Clamp Check Valve Sizes & Dimensions