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JK20-L Bottom ported Series Corrosion-resistant pressure sensor
Application industry

Pipeline pressure monitoring

Air leak testing

F.R.L (Filter, Regulator, Lubricator)

Gas storage cylinders

Adsorption verification

Air compressors
Product Parameters
Parameter Category |
Specific Parameter |
Specification |
Withstand Pressure |
High pressure |
3.0MPa (high pressure) |
Positive pressure |
2.0MPa (positive pressure) |
|
Compound pressure |
500kPa (compound pressure) |
|
Rated Pressure Range |
High pressure |
0.000~2.000MPa (high pressure) |
Positive pressure |
-0.100~1.000MPa (positive pressure) |
|
Compound pressure |
-100~100kPa (compound pressure) |
|
Protection Grade |
- |
IP65 |
Set Pressure Range |
High pressure |
-0.103~2.030MPa (high pressure) |
Positive and negative pressure |
-0.103~1.030MPa (positive and negative pressure) |
|
Compound pressure |
-103.0~103.0KPa (positive pressure) |
|
Display Refresh Rate |
- |
5 times/second |
RS485 Communication Distance |
- |
Maximum connection distance ≤1200m |
Ambient Temperature |
- |
0~50℃ |
Color |
- |
3 colors (white red orange) |
Load Current |
- |
≤200mA |
Humidity |
Action and storage |
35~85% (no water condensation) |
Internal Pressure Drop |
- |
≤1.0V |
Wire Specification |
- |
Oil-resistant PVC cable (0.15mm²) |
Current Consumption |
No load |
≤40mA |
Repeatability Accuracy |
- |
±0.3%F.S ±1digit |
Linearity |
- |
±1%F.S |
Action Indication |
- |
OUT1 |
Weight |
|
Approximately108g |
Applicable Gas |
- |
Non-corrosive fluid for SUS316 and FKM |
Minimum Unit Scale Value |
Positive pressure type kPa |
kPa(0.001), kgf/cm²(0.01), bar(0.01), psi(0.1) |
Micro and positive-negative pressure type kPa |
kPa(0.1), mmHg(1), kgf/cm²(0.001), bar(0.001), psi(0.01), inHg(0.1) |
|
Vibration Resistance |
Amplitude, frequency, time |
Amplitude 1.5mm, 10Hz~55Hz~10Hz per minute, 2 hours for each of X, Y, Z directions |
Storage Temperature |
Storage |
-10℃~60℃ (without water condensation and freezing) |
Temperature Characteristic |
- |
±3%F.S, reference temperature 25℃ (0~50℃ temperature range) |
Baud Rate |
- |
9600bps, 19200bps, 38400bps, 57600bps, 115200bps |
Insulation Resistance |
Between lead and plastic shell |
≥50MΩ (DC 500V) |
Output Voltage |
Rated voltage |
0.6V~5V ±2.5%F.S (rated voltage) |
Display Accuracy |
- |
±1%F.S ±1digit (temperature 25±3℃) |
Withstand Voltage |
Between lead and plastic shell |
AC 1000V for 1 minute |
Impact Resistance |
- |
100m/s²(10G), 3 times for each of X, Y, Z directions |
Output Type |
- |
Open collector output (NPN or PNP, up to 2 outputs |
Interface Diameter |
- |
RC1/8” VCR1/4” R1/4” M5” |
Response Time |
- |
≤2.5ms (can be set to 25, 100, 250, 500, 1000, 1500ms) |
Design Aesthetics


frequently asked questions
-
Q: Is downward piping allowed for the JK20 corrosion-resistant series?
Yes, downward piping is permitted, but it must comply with the product’s installation specifications. The JK20’s pressure elements (bellows for low pressure, Bourdon tube for high pressure) are designed to withstand vertical downward fluid flow, but improper piping layout may cause accuracy deviations or corrosion acceleration. It is mandatory to follow the "JK20 Installation Manual" for slope and support requirements. -
Q: What are the key prerequisites for safe downward piping?
-
Q: Can downward piping be used for vacuum or high-pressure (>40MPa) scenarios?
-
Q: What piping materials are compatible with JK20 downward piping?
-
Q: How to design downward piping to prevent medium stagnation?
-
Q: What sealing components are required for downward piping joints?
-
Q:How to avoid cavitation damage in downward piping?
-
Q:Why does the JK20 show inaccurate readings after downward piping installation?
-
Q:Can JK20 be customized for special downward piping needs?














