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Product Name:Quick Crossover Safety (Relief) Valve (GAKH)

Quick Crossover Safety (Relief) Valve (GAKH)

Application

Chevrolet

Product Description:

 Quick Crossover Safety (Relief) Valve (GAKH)

Details

Quick Crossover Safety (Relief) Valve Introduction
Quick Crossover Safety((Relief) Valve is a further developped and improved Double Port Safety Valve. It mainly composed two spring loaded double port safety valves, a switching mechanism and a Y Shaped Pipe. The valve inlet is at the bottom of the Y Shaped Pipe. By rotating the Handwheel of the Switching mechanism, one safety valve will open, and the other one will close. These two valves may work by turns. According to the working medium, temperature and pressure,the switching mechanism may be equipped with various types of safety valves so as to adapt the various working condition. The connecting dimension of Flanges may selected according to clients' request.

Quick Crossover Safety (Relief) Valve Application
Working Medium: Gas, Liquid
Sizes: 1"-10"
PN: Class 150LB-600LB.
Applicable Temperature: -196°C~-540°C

 

Product Description I. Summarize:
Double interlocking switch safety device is a new product independently developed byLuofu based on the original safety valve and changeover valve. According to thedesign of API520 and BS1873, the inlet and outlet of the safety valve on the pipelinecan be switched jointly, allowing for simultaneous opening and closing. Thisinstruction primarily introduces the changeover valve. About the safety valve, pleaserefer to our Operating Instructions for Spring Type Safety Valve.

II. Use & Performance Specification2.1. Use: The product is widely applied as an overpressure protection device on thecorrosive medium and non-corrosive medium pipelines such as water, oil, natural gasand steam. It has the advantages of small flow resistance, flexible opening/closing,long service life, superior safety and reliability and compact structure, it is able to achieve
following functions:
 <1. Non-stop operation. While one safety valve is operating, the other can betaked down for maintenance on the premise of non-stop operation so asto achieve the maximum economic profits due to reduce the shutdownperiod.
 <2. Two safety valves share one pipeline, which can reduce both the pipelinenumber and cost.
 <3. The inlet and outlet changeover valve of the safety valve are allowed forsynchronous operation as well as simultaneous opening/closing, makingthe operation more easily and reliably.
 2.2. Scopes of application: chemical industry, petroleum refining, oil and naturalgas pipeline transportation, etc.

2.3. Performance standard (changeover valve):

PressureGrade(Lb)	Normal temperature test pressure (MPa)			Applicabletemperature(ºC)	Applicable media
	Shell	Pressurizationand upper seal	Lowpressure seal
150	3.0	2.2	0.6	-29~300	Water,gas, oil
300	7.5	5.5	0.6	-29~300	Water,gas, oil

2.4. Maximum working pressure rating of valve (pressure-temperature standard ) (gauge pressure: MPa)
Valve body material WCB:

Temperature (ºC)	-29~38	100	300
Rating Value	1.96	1.77	1.02
Rating Value	5.11	4.66	3.98

 
Valve body material CF8:

Temperature (ºC)	-29~38	100	300
Rating Value	1.90	1.57	1.02
Rating Value	4.96	4.09	3.09

Note: The temperature in the table above refers to the temperature of the pipeline media under workingcondition. The pressure in the table is a sustained non-impact pressure.

III. Main Standards:3.1. The design and manufacture is in accordance with API 520 and BS 1873;
3.2. The flange connection is in accordance with ASME B16.5;
3.3. The inspection and test is in accordancewith API 527 and API 598;
3.4. The pressure-temperature standard is in accordance with ASME B16.34. IV. Demonstration of the type (changeover valve):

GAKH-150C

GAKH--Goole Changeover Valve;
150--Nominal pressure is 150Lb;
C--Material of valve is carbon steel.