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LZ200X Adjustable needle type pressure regulator valve

LZ200X Adjustable needle type pressure regulator valve

LZ200X Adjustable needle type pressure regulator valve
CategoriesHydraulic control valve
AlbumView larger image
BrandGARLOS
ModelLZ200X
Nominal Pressure1.0/1.6/2.5MPa
Shell Test Pressure1.5/2.4/3.75MPa
Seal Test Pressure1.1/1.76/2.75MPa
Suitable MediumWater
Medium Temperature0-80℃
Update Time2019-07-21
Detail Information

Brief Introduction


LZ200X Adjustable needle type pressure regulator valve is composed of main valve, needle adjust valve, pressure reducing pilot valve, ball valve and pipe system. This valve is mainly installed at the upstream of water supply system for high-rise building, living quarters and other pipe networks, to reduce or stabilize the pressure of downstream pipe network or device. Outlet pressure is set by setting pressure reducing pilot valve spring and needle valve open degree, and outlet pressure is stabilized by the feedback action from tube system and control room, no need other device or energy, easy to maintain, less influence from inlet pressure and flow rate, control pressure precisely, reliable to reduce and stabilize pressure.


Working Principle


When pipe started to supply water from inlet, water flows into main valve control room via needle adjust valve, outlet pressure works on the pressure reducing pilot valve via tube system. When outlet pressure is higher than pressure reducing pilot valve, pressure reducing pilot valve will be closed, control room stopped water draining, and then main valve control room pressure rises to closed main valve, outlet pressure will not rise any more. 


When outlet pressure drops below pressure reducing pilot valve setting pressure, control room will drain water to downstream. Pressure reducing pilot valve displacement will be bigger than needle adjust valve water inflow, main valve control room pressure drops. Inlet pressure will close main valve. while steady-state, Control room water inflow and displacement will be the same. Open degree will not change, and outlet pressure will not change. Outlet pressure can be set by setting pressure reducing pilot valve spring.



Features


1 Pressure controlling is steady and reliable. Pressure reducing pilot valve and main valve works continuously, downstream pressure changes continuously and steady. Low influence from inlet pressure.
2 Easy to operate. After working pressure is set, when upstream pressure of flow rate changes, main valve will adjust automatically, to stabilize downstream pressure.



Parameters


Nominal

Pressure

Shell Test

Pressure

Seal Test

Pressure

Max Inlet

Pressure

Outlet Adjustable

Pressure

Suitable

Medium

Medium

Temperature

1.0 MPa

1.5 MPa

1.1 MPa

1.0 MPa

0.09-0.8MPa

Water

0-80

1.6 MPa

2.4 MPa

1.76 MPa

1.6 MPa

0.10-1.2MPa

2.5 MPa

3.75 MPa

2.75 MPa

2.5 MPa

0.15-1.6MPa



Material



Part Name

Material

Valve Cap

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Spring

Spring steel, Stainless steel, etc.

Diaphragm depressor

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Diaphragm

NBR, PTFE, etc.

Valve Rod

45# steel, Stainless steel 2Cr13, 1Cr18Ni9Ti, etc.

Valve Platen

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Sealing Ring

NBR, PTFE, etc.

Sealing Ring Platen

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Valve Seat

Copper alloy, Stainless Steel

Valve Body

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.



Installation



Dimension


 

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