一、 Purpose
The water used pressure reducing valve made in this factory is used for various building’s water supply systems, fire-fighting systems, central air-conditioning systems and warming systems. It is used for the pressrue reduction of branch pipes so as to have the water supply pressure more reasonably distributed, avoid over-pressure for partial water supply and optimize the water supply quarters of high buildings and can replace the frequency-adjusted speed variable water pump of the quarters and the water pump of the quarters in a fire-fighting water supply system. When used for the household water supply system, it can protect all tape halters and other water utensils.
二、 Feature
1. Use a directly acting membrane structure, with very simple internal structure,without jamming, reliable performance and durable.
2. Dirt-resisting and water filth preventing, no need of a filter and a by-pass pip-e, very simple pipe-fitting, saving a great deal of space and pipe-fitting cost.
3. Precisely adjustable outlet pressure, which is not influenced by the inlet one,in general conditions (the variable of the output pressure is 8% of/ P1).
4. Extremely good hydraulic performance, small pressure loss, the pressure reduc-ing ratio can be up to over 10:1
5. Capable of satisfying multiple pressure reducing requirements, specially suitable or the branch-pipe pressure reducing system.
三、Main Technical Parameters
| Type |
Model |
公稱壓力 PN(MPa) |
公稱通徑 DN(MPa) |
Way of connection |
Body material |
Outlet pressure (MPa) |
Working temperature |
| Branch-pipe pressure re-ducing valve |
Yzllx-16T．Yzllx-25T |
1.6.2.5 |
15-50 |
thread |
青鋼 |
0.05-0.6 adjustable |
O～80℃ |
| Yzllx-16P．Yzllx-25P |
stainless steel |
四、 Main External Dimensions
| 公稱通徑 DN(MPa) |
Dimensions(mm) |
Weight (kg) |
| mm |
in |
A |
B |
C |
φ G |
| 15 |
1/2 |
31 |
60 |
76.5 |
59 |
1.2 |
| 20 |
3/4 |
31 |
75 |
76.5 |
73 |
1.2 |
| 25 |
1 |
36 |
88 |
85 |
81 |
1.4 |
| 32 |
11/4 |
42 |
93 |
98 |
81 |
1.5 |
| 40 |
11/2 |
45 |
98 |
102 |
85 |
2 |
| 50 |
2 |
54 |
130 |
117 |
98 |
2.65 |
|
