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API pressure seal globe Valve

Products > Globe valve > API pressure seal globe Valve

API pressure seal globe Valve

Model: J41Y
Nominal diameter: NPS1 / 2 "~ 2"
Nominal pressure: Class900 ~ 2500Lb
electric, pneumatic, hydraulic, gear and The like: a drive mode
Structure length: ANSI B16.10
Flange Dimensions: ANSI B16.5
Test and Test: API598
Contact purchase
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1. Product introduction

API globe valves are mainly API and ASME standards, ASTM, ASTM is the material standard, not the standard of the valve itself;Globe valves designed, manufactured, manufactured and tested to American standards are called globe valves.Globe valves and flanged globe valves are of the same type, the shutoff is a disc, the stem around the center line of the body to open and close a valve.


2. Product features

API globe valve in the pipeline is mainly used to cut off, distribution and change the flow direction of the medium.American standard globe valve is a new type of valve widely used in recent years, it has the following advantages:

1.The resistance coefficient is equal to that of the pipe segment of the same length.

2.Simple structure, small size, light weight.

3.Close and reliable, gate valve sealing material is widely used plastic, good sealing, in vacuum system has also been widely used.

4.Easy to operate, quick to open and close, from full open to full close as long as the rotation 90°, convenient for remote control.

5.Easy maintenance, gate valve structure is simple, sealing ring is generally active, disassembly and replacement are more convenient.

6.When fully open or fully closed, the sealing surface of the ball and seat is isolated from the medium, which will not erode the sealing surface of the valve when the medium passes through.

7.Wide range of applications, from small to a few millimeters, to a few meters, from high vacuum to high pressure can be applied, when the ball rotating 90 degrees, in the inlet and outlet should all appear spherical, thus cutting off the flow.


3. Standards and specifications

Design and manufacturing: API 600

Structural length: ANSI B 16.10

Pressure and temperature rating: ANSI B 16.34

Testing and inspection: API 598

 

4. Performance specification

Test pressure

Pressure grade

900Lb

1500LB

2500LB

3500LB

MPa

Shell test

22.5

37.5

63.0

96.0

Airtight seal test

0.6

0.6

0.6

0.6

Sealing test

16.5

27.5

46.2

70.4

Upper seal test

16.5

27.5

46.2

70.4

Scope of use

Valve material

Applicable temperature(℃)

Applicable medium

WCB(A105)

-29℃~425℃

Water, steam, oil, etc

WC6(F11,F22)

-29℃~540℃

Water, steam, oil, etc

ZG1Cr5Mo

-29℃~550℃

Water, steam, oil, etc

CF8

≤200℃

Nitric acid, weak corrosive gas or liquid medium

CF3

≤200℃

Nitric acid, weak corrosive gas or liquid medium


5, Principle of action

When the medium flows from below the disc, the sealing force applied must be equal to or greater than the sum of the necessary specific pressure on the sealing surface and the upward force of the medium.When the medium is flowing from above the disc, the sealing force applied is equal to or greater than the difference between the pressure force generated on the sealing surface and the acting force of the medium.Its advantage is that there is no friction when the contact surface is closed, and the performance of the sealing surface will not be affected when the roundness of the sealing surface is deformed due to the stress of the pipeline.But solid particles and sediment in the medium are easy to damage the sealing surface.


6.Main material

Body and cover

Stem 

Sealing surface 

Gaskets(環)

Packing

Medium temperature

Applicable medium

WCB

2Cr13

13Cr
STL
本體材料
With Body
Material 尼龍
Nylon

Reinforced flexible graphite
13Cr/Flexible graphite
F304
F316
F304L
F316L

Flexible graphite
Reinforced flexible graphite
Flexible
Graphite
Enhanced
Flexible
Graphite
SFB/260
SFP/260
PTFE

≤425

WATER
steam
oil

WC1

38CrMoAl
25Cr2MoV

≤425

WC6

≤540

WC9

≤570

C5 C12

≤540

CF8

F304

≤200

nitric acid
acetic acid
urea

CF8M

F316

CF3

F304L

CF3M

F316L


7. Size (MM) and weight (KG)

NPS2
21/2
3468221/2346in
ANSI Class 1500LbANSI Class 2500Lb
L14.5016.5018.5021.5027.7532.7517.7520.0022.7526.5036.00in
L18.5010.0012.0016.0022.0028.0011.0013.0014.5018.0024.00in
L214.6216.6218.6221.6228.0033.1317.8720.2523.0026.8836.50in
H222224.383044.6254.7523.3823.382832.2549.62in
D01618202428361620242836in
WT(kg)5765901904507306578125155480BW


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