SFW-AFBouchons de reniflard

Bouchons de reniflard

Technopolymère, haute filtration, avec double valve et protection contre les éclaboussures

Code
Description
D
L
d1
d2
d3
h
h1
s
52940-C9
SFW-AF.85-M30x1.5+FC3-350MB-C9
85
73
M30x1.5
23
38
16
30.5
28
136
52942-C9
SFW-AF.85-M42x2+FC3-350MB-C9
85
76
M42x2
33
50
16.5
34
36
145
52944-C9
SFW-AF.85-G3/4+FC3-350MB-C9
85
73
G 3/4
20.5
35
16
30.5
28
135
52946-C9
SFW-AF.85-G1+FC3-350MB-C9
85
73
G 1
25
40
16
30.5
28
138
952944-C9
SFW-AF.85-3/4 NPT+FC3-350MB-C9
85
73
3/4 NPT
20.5
36
16.5
30.5
28
135
952946-C9
SFW-AF.85-1 NPT+FC3-350MB-C9
85
77
1 NPT
27
41
19
34.5
34
138
952948-C9
SFW-AF.85-1.1/16-12 SAE+FC3-350MB-C9
85
73
1.1/16-12 UNF
20.5
35
16
30.5
28
134
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Cover

Polyamide-based (PA) technopolymer, black colour RAL 9005, matte finish, laser engraved graphic symbols.

Threaded fitting

Polyamide-based (PA) technopolymer, with splash guard and hexagon nut, black colour, semi-matte finish.

Packing ring

NBR synthetic rubber flat washer.

Overpressure valve

Technopolymer with NBR synthetic rubber O-ring.

Stainless steel spring, set at around 0.350 bar.

Suction valve

NBR synthetic rubber and stainless steel spring.

Set at around 0.030 bar.

Air filter

Polyester with a filtration rate of 3µm (efficiency > 98%).

Maximum continuous working temperature

100°C.

Features

The SFW-AF (registered design) breather cap maintains a reservoir of air under pressure above the oil level within the limits established in the design stage to avoid deformation of the tank walls. Benefits:

  • it reduces reservoir air volume intake keeping clean oil and filter;
  • it improves suction pump action under working conditions reducing cavitation phenomenon;
  • it prevents fluid leakage when the system is part of a mobile unit;
  • it reduces foam in fluid.

SFW-AF caps are made with a special internal geometry which stops the leakage of the fluid to the outside.

The hexagon on the threaded fitting makes it possible to apply, using a wrench, a greater tightening torque on the cap, ensuring better compression of the gasket.

Technical data

Air flow rate for the different executions of breather caps can be obtained from the diagram on the basis of the difference of air pressure inside and outside the reservoir.

 
 

Special executions on request

  • Black cover without graphic symbol.
  • Orange cover.
  • Orange cover without graphic symbol.
  • Yellow cover.
  • Yellow cover without graphic symbol.
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