Đặc tính kỹ thuật bao gồm:
Lưu lượng: Tối đa 600 m3/h
Cột áp: Tối đa 90 m
Tốc độ: Tối đa 3600 vòng/phút
Nhiệt độ: Tối đa 207 độ C
Áp suất vỏ bơm: PN 25
Shaft sealing: Sử dụng mechanical seal
Kết nối mặt bích: DIN EN 1092-2 PN 40
Chiều quay của bơm: Theo chiều kim đồng hồ khi nhìn từ hướng motor
Phụ kiện có thể thay thế:
10.20 Volute casing
15.20 Intermediate flange
16.10 Casing cover
33.00 Bearing bracket
21.00 Shaft
23.00 Impeller
44.10 Casing for mechanical seal
43.30 Shaft seal
52.90 54.00 Sleeve bearing
APPLICATION
The volute pumps of the series ZDHD are part of the overall programme heat transfer and circulation pumps. They are primarily used for circulation of hot water in closed pipe and vessel systems.
Therefore their fields of application are
the energy production,
the heat transport and
the industry
and here mainly in systems where hot water as heat carrier is given preference, despite is high system pressure, over oil as heat carrier.
DESIGN
Horizontal, single-stage volute casing pumps with the dimensions ans nominal ratings to DIN EN 22858 in back pull out design, with uncooled balanced mechanical seal.
The series ZDND has especially been designed for the trouble free handling of hot water up to 207 °C and is distinguished by:
A double heat barrier that causes an optimal energy consumption by the pump and reduces the temperature level in the mechanical seal chamber to less than 90 °C without external cooling circuit (see temperature curve on page 3). The service life of the mechanical seal increases considerably.
A special design that automatically leads accumulation of gas to exhaust. Consequently the dry operation of the mechanical seal can be excluded.
A programme that comprehends 22 construction sizes and thus guarantees an optimal solution for every operating point.
The back pull out design, which permits the removal of the complete, bearing unit towards the drive side without removing the pump casing from the pipe work. If a spacer coupling is installed it is also unnecessary to disconnect the motor.
Link download catalogue để tham khảo thêm: Catalogue Flowserve SIHI ZDND