Liquefied Petroleum Gas, Back-flow Safety Valve

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A Liquefied Petroleum Gas, Back-flow Safety Valve is fitted in the liquid phase exit pipe of liquefied petroleum gas. The temperature range that this valve is designed to accommodate is from -40 to 80 degrees Celsius. When there is a pressure difference of more than 0.5 MPa between the input and output, the flow of liquefied petroleum gas will automatically reverse direction and return to the tank. Equipment or pipelines that carry LPG or other similarly non-corrosive media have an operating temperature range, and as a result, they need a safety valve.

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liquefied-petroleum-gas-back-flow-safety-valve

CE Certification

ISO Standards

Warranty Included

DESCRIPTION

A Liquefied Petroleum Gas, Back-flow Safety Valve must be installed in the liquid reflux pipeline leading from the LPG storage tank outlet. When the pressure within the tubes of the equipment climbs over the allowable quantity, the valve opens, allowing full emissions to occur. The valves then close when the pressure drops below the acceptable value, allowing the equipment to be operated safely.

 

Benefits

  • They swiftly vent the pressure in the event of an emergency or a breakdown.
  • In the case of a critical situation, safety valves are intended to immediately release all of the pressure that they have stored inside of them.
  • When the first Safety Valve opens automatically as a result of increased steam pressure, the second Safety Valve, which is located on the Steam Drum, allows pressure to be released from the Steam Drum.
  • Because an increase in pressure may lead to malfunctions, fires, or explosions, safety valves are fitted to protect against these types of catastrophes. 
  • A safety valve is a backup safety mechanism that may be used in the event that other safety mechanisms, such as those that rely on electronics or pressurized air, fail. 

 

NO.

Name of part

A42Y-160

A42Y-320 Materials

A42Y-160P

A42Y-320P Materials

A42Y-160R

A42Y-320R Materials

1

Flange

35/35CrMoA

2Cr13

1Cr18Ni12Mo2Ti

2

Nozzle

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

3

Body

40

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

4

Adjusting ring

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

5

Disc

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

6

Disc holder

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

7

Guide sleeve

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

8

Bonnet

ZG230-450

ZG230-450

ZG230-450

9

Stem

2Cr13

1Cr18Ni9Ti

1Cr18Ni9Ti

10

Spring

50CrVA

50CrVA Coated Teflon

50CrVA Coated Teflon

11

Adjusting bolt

45

2Cr13

2Cr13

12

Cap

ZG200-400

ZG200-400

ZG200-400

Sealing surface of material

Co Depositing stellite

 

Dimension(mm)

Type (DN) do d M K D Z-d b d1 M1 k1 D1 Z1-d1 b1 L L1 H
A42Y-160 15 8 20 M24*2 60 95 3-18 20 29 M42*2 80 115 4-18 22 95 100 220
20 8 27 M33*2 68 105 3-18 20 29 M42*2 80 115 4-18 22 95 100 220
25 14 28 M33*2 68 105 3-18 20 50 M64*3 115 165 6-26 32 150 150 280
32 15 37 M42*2 80 115 4-18 22 50 M64*3 115 165 6-26 32 150 150 390
40 20 47 M52*2 115 165 6-26 28 65 M80*3 145 200 6-29 40 180 180 495
50 25 59 M64*2 115 165 6-26 32 80 M100*3 170 225 6-33 50 165 165 400
A42Y-320 15 8 27 M33*2 68 105 3-18 20 29 M42*2 80 115 4-18 22 95 100 220
20 8 30 M33*2 75 110 3-18 22 29 M42*2 80 115 4-18 22 95 100 220
25 14 35 M42*2 80 115 4-18 22 50 M64*3 115 165 6-26 32 150 150 280
32 15 41 M48*2 95 135 4-22 25 50 M64*3 115 165 6-26 32 150 150 390
40 20 58 M64*3 115 165 6-26 32 65 M80*3 145 200 6-29 40 180 180 495
50 25 70 M80*3 145 200 6-29 40 80 M100*3 170 225 6-33 50 165 165 400
A42Y-400 32 15 41 M48*2 95 135 4-22 25 50 M64*3 115 165 6-26 32 150 150 397

 

liquefied-petroleum-gas-back-flow-safety-valve

TECHNICAL SPECS
Supply Ability 10000 Piece/Pieces per Month
Port Wenzhou/shanghai
Payment Terms L/C,D/A,D/P,T/T
Q&A
Can we order goods from you directly?
Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.
Can I get a discount?
This depends on the specific situation, you can call directly to consult.