Emerson DeltaV KJ2004X1-BA1

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Emerson  DeltaV KJ2004X1-BA1 Power module In Stock

unlike the direct spring operated PRV, the main valve will only open to 

a lift needed to flow the required capacity. Recall in figure 4-7 or 4-12, 

there is an abrupt lift (but not a full lift) at set pressure for gases or a 

gush of liquid during the overpressure of a direct acting relief valve. 

If there is any capacitance in the inlet piping to the valve, these direct 

acting devices may initially flow more than the source of overpressure 

can provide. The modulating action pilot operated PRV operation will 

conserve the product during an upset, minimize interaction with control 

valves trying to balance the system, lower reaction forces in the piping 

supporting the PRV, reduce noise levels and provide stability at low 

required capacity relieving contingencies. API Standard 521 and ISO 

23251 will allow piping that is immediately downstream of a modulating 

PRV to be sized based upon the required capacity rather than the rated 

capacity. This can optimize the pipe size and save installation costs.

The blowdown for the modulating pilot valve assembly is minimal. 

Most modulating pilot designs will have a worst case blowdown of 3% 

to 4% for either gas, liquid or multi-phase applications. In multi-phase 

applications this can provide an advantage over the direct acting spring 

loaded valve especially when the quality of the gas portion of the fluid is 

high which can create a blowdown as much as 20%. 

Product details:

Emerson  DeltaV KJ2004X1-BA1 Power module

Contact information：

Contact person：Luna Chen

Email Address:：sales6@saulplc.com

WhatApp： +86 13358378970

We look forward to your inquiry and will get back to you as soon as possible.

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