Self-balancing valve-Water conservancy control valve series-水利控制阀厂家-上海冠环阀门制造有限公司

Technical Parameter
Product model: ZLF
Nominal diameter: DN15-350mm
Nominal pressure: PN1.6MPa
Applicable temperature: 0-100 ℃
Valve body material: cast iron, cast steel
Applicable medium: non corrosive liquids such as water and oil
Pressure difference control range: 10~30KPa
Flange standards: GB/T 17241.6, GB/T 9113

Test standards: GB/T 13927, API598

Product Overview

Self balancing valve is a hydraulic condition balancing valve that automatically maintains a constant pressure difference. It is used in water systems such as centralized arch heating and central air conditioning, which is beneficial for the independent adjustment of various users and end devices in the controlled system. Especially suitable for household metering heating systems and variable flow air conditioning systems. Ensure that the system remains basically unchanged, reduce noise, balance resistance, and eliminate thermal network and hydraulic imbalance.

Product Features
1. Suitable for water systems that require flow control, especially for flow control of non corrosive liquid media such as heating and air conditioning.
2. Installed in the water system, after one adjustment before operation, the system flow rate can automatically remain constant at the required set value.
3. It can automatically eliminate hydraulic imbalance caused by various factors in the water system, maintain the required flow rate for users, and overcome "uneven heating and cooling".
4. Improve the room temperature qualification rate of heating and air conditioning.

5. It can effectively overcome the poor operation mode of "large flow rate and small temperature difference", improve system energy efficiency, and achieve economic operation.

Main technical parameters

Nominal pressure	Nominal diameter	Applicable medium	Applicable medium	Pressure difference control range	Flange standard	Test standard
1.6MPa	15～125mm	Water, oil and other non-corrosive liquids	0～100℃	定压差型 10KPa、20KPa、30KPa	GB/T 17241.6 GB/T 9113	GB/T 13927 API598

Materials for main parts

name of parts	Valve body, valve cover	valve stem	valve clack	diaphragm
materials	Gray cast iron, cast steel	stainless steel	cast copper	chemigum

Main contour connection dimensions

DN		15	20	25	32	40	50	65	80	100	125
connection type		thread			法兰
L		110	110	115	130	200	215	230	275	290	310
H(mm)	Constant pressure differential type	95	110	130	140	190	205	240	300	350	380
flow m³/h		0.2-1	0.3-1.5	0.5-2	1-4	1.5-6	2-8	3-12	5-20	10-30	15-45