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Van an toàn – Safety valve SM152

Model : SM152

Xuất Xứ : Liên hệ

Tình Trạng : Liên hệ

Giá Bán : Liên hệ

Bảo Hành : 12 tháng

Để có được giá tốt nhất, quý khách vui lòng liên hệ 0933.707.707 gặp Mr Lãm


Diaphragm Safety Valve
for Closed Water Heaters

Van an toàn

The safety valve comprises:
• Angled housing
• Safety valve exchange insert, approved and comprising
screw-in section with hexagon, spring bonnet, security cap
with certification, and rating plate, venting knob, sealing disc,
diaphragm, setting spring
• Brass housing
• High-grade synthetic material screw-in section (for 6.0 bar set
pressure) or brass (for 8.0 bar and 10.0 bar set pressures)
• High-quality synthetic material spring bonnet
• High-grade synthetic material security cap
• High-grade synthetic material venting knob
• Hot-water-resistant elastomer seal disc
• Hot-water-resistant elastomer diaphragm
• Spring steel adjustment spring
Diaphragm safety valves of this type are used to protect pressurised water heaters according to the require-ments of
DIN 4753, Part 1, and DIN 1988.
In accordance with statutory requirements, the diaphragm safety
valve is preset to the required fixed set pressure by the manufacturer and is sealed with an embossed security cap marked with
the test badge and pressure rating to prevent unauthorised
tampering with the setting. Subsequent alteration of the setting is
not permitted and is impossible without destroying the security
cap. The preset pressure is embossed on the security cap.
Special Features
• Replacement insert tested to TRD 721
• Easy venting
• Replacement insert makes servicing simple
• Meets KTW regulations for potable water
• Certified to Pressure Equipment Directive 97/23/EC
• Standardised discharge connection
Range of Application
For closed water heaters in compliance with DIN 4753, Part 1 and
DIN 1988
Tested to TRD 721 for pressure range 1.0 bar to 10.0 bar.
Technical Data
Medium Water
Installation position Horizontal with safety cap pointing up
Opening pressure Factory preset to 6.0, 8.0, or 10.0 bar
Subsequent alteration of the setting is
not permitted and is impossible without
destroying the security cap.
Operating temperature Max. 95 °C
Connection size 1/2″ – 11/4″
Valve size is defined by the size of the inlet connection.

Method of Operation
Diaphragm safety valves of this type are directacting safety
valves in which the disc is pushed up by the pressure from the
system against a spring which is holding the valve closed. If the
opening force exceeds the force exerted by the spring, then the
valve disc is lifted off the valve seat and the valve discharges the
medium. In accordance with the requirements of the standard,
the full discharge capacity of the valve will be achieved when the
system pressure climbs to no more than 10% above the set
pressure of the valve. Full shutoff must be achieved if the system
pressure falls to below 80% of the nominal set pressure of the
valve. For valves rated up to 3.0 bar, the closing pressure can be
taken as 0.6 bar minimum.

SM152. jpg

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Tel : (+84) 838.490.793 - Fax : (+84) 838.490.795 - Email : sales@wincorp.com.vn - Website : www.wincorp.com.vn