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45BYMP Check Valve

00001096
The Original, Sanitary Y-Body Check Valve
45BYMP Check Valve
45BYMP Y-Body Check Valve.

Application

The 45BYMP Check Valve is designed for use in sanitary stainless steel pipe systems to prevent reverse product flow. The valve can be installed in either a vertical or horizontal position.

Working principle

When liquid under normal pressure enters the inlet of the 45BYMP Check Valve, an elastomeric ball is pushed upward into the "Y" branch (lower pressure area) of the valve. When the liquid flow stops, the pressure within the valve equalizes, and the ball will return from the "Y" branch of the valve, and rest itself against the smaller diameter of the valve near its inlet. Should a reverse flow situation occur, the opposing pressure of the fluid will seat the ball firmly against the inlet of the valve, preventing reverse flow.

Standard Design

The valve consists of a single-piece, stainless steel body with an elastomeric ball (see Options for materials available). The "Y" branch of the valve maintains a Tri-Clamp® connection along with an associated Tri-Clamp, end-cap, and NBR gasket. The valve is polished internally and externally and is authorized to carry the 3A symbol.

Size

  • - Available in sizes from 1½" to 3".

Connections

  • - Tri-Clamp
  • - Weld connections.

Technical Data

Max. product pressure200 PSI (contact Alfa Laval for higher PSI)
Min. product pressure1 PSI - to unseat check ball
Temperature rangebased on elastomer choice

Materials

Product wetted steel partsStainless steel AISI 316L
Other steel partsStainless steel AISI 304
Product wetted partsSee option list below
Finish32 Ra standard

Options

    Ball Material

  • - Buna
  • - EPDM
  • - SFY
  • - Nylon (max. 140°F)

    Gasket Material

  • - NBR (standard)

Ordering

Please state the following when ordering:

  • - Connection size
  • - Connection type
  • - Check ball material

Ball Check Valves

<>End Connection: Tri-Clamp®
45BYMP-Size-Ball Mat’l*
Size (Tube OD) A Approx. Wt.
inch mm inch mm lb kg
1932
332
38
<>End Connection: Tri-Clamp®
Valve Material:
316L Stainless Steel
L45BYWW-Size-Ball Mat’l*
Size (Tube OD) A Approx. Wt.
inch mm inch mm lb kg
78
1316
1116

All dimensions are for identification purposes only.

<>*Ball Material:
U = Buna Ball
N = Nylon Ball
SF = Viton Ball
E = EPDM
45BY-Size-02-Ball Mat’l*, Replacement Balls
Size (Tube OD) Size (Ball)
inch mm inch mm
58
18
18

Pressure Drop Curves

Model 45BYMP Ball Check Valve

All curves are tested pressure drop curves, not certified, and should be applied for guideline purposes only. Performance curves are based on tests using 68°F (20°C) water.



 

 

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