Ball check valves are devices that protect pressure pipelines against unwanted feedback. The most commonly used on the discharges in the pumping stations of domestic sewage and in the water pumpersrainfall. The construction and material performance allow for wide use in installations inside the pumping station tanks, on surface transmission pipelines, as well as for use underground in both vertical position andand horizontal (with the right direction of flow).
Characteristics:
• Full flow flow
• Self -cleaning of the ball
• low sealing pressure
• Vertical and horizontal assembly method
• Silent work
• Inspection chamber for cleaning and replacing the ball
Technical data:
- Products meet the requirements of standards:
- EN1092-2 PN16 and AS4087, AS4087 (AS2129 Table E),
- ISO 228-1 in relation to BSP threads,
- Category A Standard ISO5208,
- EN558-1 Series 48 (DIN3202 F6).
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Scope of threaded valves: from DN25 (1 ") until DN65 (2-1/2 ").
- The range of collar valves diameters: from DN50 to DN100.
- Maximum working pressure: 16 bar.
- Minimum feedback guaranteeing tightness: from 0.3 to 0.5 bar.
- Tested pressure:
- for a socket with a ball: 1.1 × normal pressure,
- - for the body: 1.5 × normal pressure.
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Range of use at 10-80 ° C temperatures.
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Valve building length and connection sizes Collars and threads meet the requirements of the above -mentioned standards.
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The correct direction of liquid flow through the valve defines Arrow on the body.
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Durable and simple construction, guarantee long -term trouble -free action.
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The closure of the valve (blind) is a smooth ball covered EPDM resistant layer. By freely rotating the ball in the nest, which is where the ball goes under the influence of liquid flow, the ball is cleaned of the solid fraction raised by the medium.
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The valves have a revision closed with screws for inspection and convenient cleaning in the case of abnormal sewage content.
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Dimensions according to EN1092-2 PN16
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|
Dn
|
L
|
D
|
D1
|
D2
|
N-D
|
b
|
H
|
|
DN50 PN16
|
200
|
165
|
125
|
99
|
4 - 19
|
19
|
100
|
|
DN65 PN16
|
240
|
185
|
145
|
118
|
4 - 19
|
19
|
125
|
|
DN80 PN16
|
260
|
200
|
160
|
132
|
8 - 19
|
19
|
136
|
|
DN100 PN16
|
300
|
220
|
180
|
152
|
8 - 19
|
19
|
185
|
Materials:
- Corps: Servoid cast iron,
- Bullet: steel/nbr,
- Oring: EPDM,
- Inspection cover: spheroid cast iron,
- Screw: Aisi 304 stainless steel,
- Nut: Aisi 304 stainless steel,
- Pad: Aisi 304 stainless steel.
