Cv. Casis
SUPLIER INSTRUMENS VALVE

Contact Address :
JL.Pulo Besar 1 No. 2
SUNTER JAYA 1435
Jakarta Utara – Indonesia
Phones: 021 7138 5229, 0878 830 37433
Fax: 021 428 01588

Axelson ESP Pressure Sensor
The Axelson ESP Pressure Sensor is a highly accurate and reliable device designed to detect an abnormal operating condition in a safety system and transmitting a signal to perform a specific shutdown function.
The Axelson ESP Pressure Sensor is a 3-way block and bleed valve that is controlled by a piston and spring.
It is used to sense predetermined pressure and, when that pressure is reached, shift the 3-way valve.
The actuation point is easy to adjust by turning the adjustment cap. This changes the spring force. Turning the cap clockwise will increase the pressure setting. Turning the cap counter clockwise will decrease the pressure setting.

The sensor may be used to detect high pressure or a low-pressure condition by connecting the input instrument pressure to the appropriate port. When connected to either port the remaining port becomes the exhaust port.

When used in a high pressure sensing application, the sensor allows flow through the instrument ports from " low " input to output as long as the sensing pressure increases to the high set point, the instrument input is blocked and the output is bled to the exhaust port.

When used in a low pressure sensing application, the sensor allows flow through the instrument ports from " low " input to output as long as the sensed pressure is above the low set pressure. When the sensing pressure decreases to the low set point, the instrument is blocked and the outlet is bled to the exhaust port

Sensing pressure range from .5 to 20, 000 psi
Instrument pressure range up to 200 psi
Block-and-bleed 3-way valve
Designed for 3% repeatability of set point, or 5 psi, whichever is greater.
Minimum spread ( dead band) between trip and reset pressure
Spring maybe be replaced with instrument and sensing pressures present
Vent in lower housing provides warning if body is accidentally loosened from lower housing with sensing pressure present
Available to conform to NACE Standard MR-01-75
Corrosion resistant 316 stainless steel used throughout with Inconel spring optional.
Sensing pressure connections:
9/ 16 " HP on high-pressure sensors ( 20, 000 psi)
¼ " NPT on low pressure sensors ( diaphragm type)
½ " NPT on all other sensors
Metal-to-Metal seal between stem and body is designed to prevent flow line pressure or fluids from entering instrument pressure system if O-ring seal fails when sensor is in Fail-Safe Position
Vent acts as a warning allowing sensing pressure to bleed out prior to disengaging body from piston housing

ESP PRESSURE SENSOR SENSING RANGES & PART NUMBERS:

Sensing Pressure Range Maximum W.P. Sensing Unit & Spring Part Number
0.25 - 5.3 PSI 250 PSI 4 " Diaphragm w/ Ultra Light Spring ESP 41046-258
0.5 - 20 PSI 250 PSI 4 " Diaphragm w/ Light Spring ESP 41046-218
1 - 40 PSI 250 PSI 4 " Diaphragm w/ Heavy spring ESP 41046-228

0.5 - 20 PSI 250 PSI 2 " Diaphragm w/ Ultra Light Spring ESP 41046-256
1 - 100 PSI 250 PSI 2 " Diaphragm w/ Light Spring ESP 41046-216
2 - 200 PSI 250 PSI 2 " Diaphragm w/ Heavy Spring ESP 41046-226

1 - 60 PSI 10, 000 PSI 1-1/ 8 " Piston w/ Ultra Light spring ESP 41046-251
10 - 125 PSI 10, 000 PSI 1-1/ 8 " Piston w/ Light spring ESP 41046-211
75 - 550 PSI 10, 000 PSI 1-1/ 8 " Piston w/ Heavy spring ESP 41046-221

300 - 1, 000 PSI 15, 000 PSI 1/ 2 " Piston w/ Light Spring ESP 41046-212
500 - 2, 000 PSI 15, 000 PSI 1/ 2 " Piston w/ Heavy Spring ESP 41046-222

1, 900 - 5, 000 PSI 15, 000 PSI 1/ 4 " Piston w/ Light Spring ESP 41046-213
4, 900 - 10, 000 PSI 15, 000 PSI 1/ 4 " Piston w/ Heavy Spring ESP 41046-223

10, 000 - 20, 000 PSI 20, 000 PSI 3/ 16 " Piston with Heavy Spring ESP 41046-224
AXELSON ESP SPRING COLOR CHART:
ULTRA LIGHT - WHITE SPRING
LIGHT - ORANGE SPRING
HEAVY- BLUE SPRING