When the high and low temperature chamber refrigeration system appears when the expansion valve for a long time or less expansion valve is not small, superheat, undercooling is not correct and so on. The reason may be the temperature of the package out of the fault. 1) The temperature of the capillary cracks, so that the charge inside the temperature sensor missing, resulting in the correct signal can not be passed to the thermal expansion valve actuator mechanism. 2) Temperature Wrapped bandaging location is not correct. Second, temperature package troubleshooting General temperature package as much as possible installed in the evaporator outlet horizontal section of the return pipe should be far away from the high and low temperature chamber compressor suction port and near the evaporator, but not vertical installation. When the horizontal pipe back to the diameter of less than 7/8 (22mm), the temperature package should be installed in the top of the return pipe, the suction pipe "one o'clock." When the horizontal air return pipe diameter is greater than 7/8, the temperature sensing package should be installed below the air return pipe axis at about 45 degrees with the horizontal axis, ie the "3 o'clock" position of the suction pipe. Because installing the temperature sensing package in the upper part of the suction pipe will reduce the sensitivity of the reaction and may cause excess refrigerant in the evaporator. Installing the temperature sensing package at the bottom of the suction pipe may cause disorder of the liquid supply because there are always a small amount Of the liquid refrigerant flows to the location where the temperature sensing package is installed, resulting in a rapid change in the temperature of the temperature sensing package. Installation, the temperature package need to use copper wrap, back to the pipe surface to rust, if it is steel, rust painted silver paint surface to ensure that the temperature probe and the back of the trachea good contact. Temperature package must be lower than the valve top membrane cavity, and the temperature of the package head to the level or down, when the relative position higher than the membrane cavity, the high and low temperature chamber capillary should be bent up into a U-shaped, In order to avoid liquid into the membrane cavity. The company is located in: precision tube for bearing rings
precision tube for bearing rings
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din2391 seamless precision bearing steel tube 100cr6 Liaocheng Xinglong Seamless Tube Manufacturing Co., Ltd. , https://www.lcxlpipe.com
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3. Marking: as per customer's requests.
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High and low temperature chamber expansion valve failure solution
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Product Description
Product Name
din2391 seamless precision bearing steel tube 100cr6
Material
10#,20#,45#,Q345,A106-B,20Cr,15CrMo,St37,St42,ASTM 4140 etc.
Standard
JIS,GB,ASTM,DIN
Technique
Cold Rolled
OD
10~335mm,1/2"~12"
Wall Thickness
2~25mm,SCH10~XXS
Length
5.8m~12m/customized design
Surface Treatment
black painting, varnish, oil, galvanized, anti corrosion coatings
Packaging
1. Bundle packing.
MOQ
1 ton for normal material
Payment Terms
T/T,L/C etc
Testing
Chemical Component Analysis, Mechanical Properties,
Application
Structure pipe; High and low pressure boiler tube; Liquid delivery; Seamless Steel Pipe for petroleum cracking ,Oil pipe,Gas pipe
Advantages
1.Reasonable price with excellent quality
Standard:
JIS, DIN, ASTM, BS, GB, API
Standard2:
JIS G3455-2005, JIS G3445-2006, DIN 2391, DIN EN 10025, ASTM A106-2006, ASTM A53-2007, ASTM A179-1990, BS EN10025, GB/T 8163-1999, GB/T 8162-1999, API 5L
Grade Group:
A53-A369, 16Mn, 10#-45#, Cr-Mo alloy, ST35-ST52, Q195-Q345
Grade:
A53(A,B), A106(B,C), A179-C, A178-C, 16Mn, 10#, 20#, 45#, 34CrMo4, 30CrMo, St35.8, St35.4, Q235, Q345
Thickness:
1.5 - 25 mm mm
Section Shape:
Round
Outer Diameter(Round):
10 - 335 mm mm
Place of Origin:
Shandong, China
Application:
Structure Pipe
Technique:
Cold Rolled
Surface Treatment:
as customer request
Special Pipe:
thin wall pipe
Alloy Or Not:
Is Alloy
Product name:
din2391 seamless precision bearing steel tube 100cr6
Surface:
Bright
Material:
10#.20#.45#.A106B,A53,STKM13A
Shape:
Square. Rectangular.Round
Usage:
Construction Structure
Length:
5.8-12m
Packing:
Bundles
Payment terms:
T/T
MOQ:
25 Ton
End protector:
Plastic Pipe Cap Iron Protector