CÔNG TY CỔ PHẦN THƯƠNG MẠI DỊCH VỤ VÀ KỸ THUẬT WIN

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Control flow valve DR300

Model : DR300

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

MÔ TẢ SẢN PHẨM :

DR300
Pressure regulator

VAN ĐIỀU ÁP

Construction
The pressure regulator comprises:
• Housing with flanges to ISO 7005
• Pilot valve CX-PR with integral fine regulation valve
• Control circuit with ball valves on inlet and outlet
• Control circuit with integral rinsable filter insert
Materials
• Ductile iron housing, cover plate and diaphragm plate
(ISO 1083), powder coated
• Red bronze/stainless steel regulating cone
• Stainless steel pressure spring and control rod
• Fibre-reinforced NBR diaphragm
• NBR and EPDM seals
• Stainless steel valve seat
• High quality synthetic material control circuits
• Brass compression fittings
• Brass pilot valve housing
• Stainless steel filter insert
Application
Pressure regulators of this type protect downstream installations
against excessive supply pressure.
Pressure regulators are used when the capacity of direct
controlled pressure reducing valves are insufficient. Their
compact construction makes them particularly suitable for installation in limited spaces, for example in ducts.
By using a pressure regulator, pressurization damage is avoided
and water consumption reduced.
The set pressure is also maintained constant, even when there is
wide inlet pressure fluctuation.
Reduction of the operating pressure and maintaining it at a
constant level minimizes flow noise in the installation.
Special Features
• High flow capacity
• Light weight
• High control accuracy
• Outlet pressure up to 12.0 bar
• Powder coated inside and outside – Powder used is physiologically and toxicologically safe
• Integral control circuit and ball valves
• No external energy required for operation
• Reliable and proven
Range of Application
Technical Data
Medium Water
Inlet pressure max. 16 bar
Outlet pressure 1 – 12 bar
Operating temperature
max. 80°C
Nominal pressure PN 16
PN 25 on request
Minimum pressure 0.7 bar
Minimum pressure
drop
1 bar
Nominal size DN 50 – DN 450

Method of Operation
At zero pressure the valve is closed. When the system is then put
into operation, the water flows in and opens the diaphragm valve.
The outlet pressure is diverted via the link pipework to the pilot
valve, which then closes. If the pilot valve is closed, the pressure
in the chamber above the mem-brane rises. The membrane
surface area is larger than the valve surface area and therefore
the diaphragm valve closes. When water is drawn from the
outlet, the outlet pressure falls, which in turn causes the pilot
valve to open. As soon as the opening of the pilot valve becomes
greater than the cross sectional area of the opening in the fine
regulation valve, the pressure in the chamber above the
diaphragm falls and the inlet pressure opens the diaphragm
valve.
In this way the pilot valve regulates the control pressure so that
the diaphragm valve opens just the required amount needed to
maintain the outlet at constant pressure.

DR300. jpg

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Model : EW370

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Model : EW120

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Model : EW171

Water meter EW130
Model : EW130

Công Ty Cổ Phần Thương Mại Dịch Vụ Và Kỹ Thuật WIN
Địa chỉ : 1047 Lũy Bán Bích, Phường Tân Thành, Quận Tân Phú, Thành Phố Hồ Chí Minh.
Tel : (+84) 838.490.793 - Fax : (+84) 838.490.795 - Email : sales@wincorp.com.vn - Website : www.wincorp.com.vn