Categories

Contact

E-mail :
xxskjx@126.com

Tel：
+86-13183112388

Address：
Intersection of Wutong Road and SF Express Road,Industrial Cluster Area, Huojia County, Henan Provinceff

Attention to the use of the head

Section shape clearance

Section shape gap: convexity shall not be greater than 1.25%Di; concavity shall not be greater than 0.625%Di. (WithGap sample test)

Tolerances for straight edges, slopes, creases, total depth (height): Gap

There shall be no longitudinal creases in the straight edge portion of the head.Tolerances for the height of the straight edge of the head and for the inclination of the inner and outer parts of the straight edge shall be as follows.

Dia Height of Straight Edge Inclination Total Depth
(Height) Tolerance 
DN ≤2000 h=25 Outer:1.5 Inner:1.0  (-0.2~ 0.6)%Di
DN >2000  h=40  Outside:2.5 Inside:1.5 
other than  Outside:6%h day≤5 
Inner:4%h day≤3 

 Outer circumference tolerance, inner diameter tolerance

Nominal Diameter Steel thickness δs Inner diameter tolerance ID Tolerance of outer circumference
DN <600 2≤6s<4 ±1.5 ±4
4≤Ss<6 ±2 ±6
600 ≤ DN < 1000 Ss>6 ±3 -3~9
2≤8s<4 ±2 ±6
4≤6s<6 ±2 ±6
DN ≥1000 6s>6 ±3 -3~9
All ±3 -3~9

Note: Generally, if Di≥1000 and 6s<10mm, the outer circumference tolerance shall prevail.The tolerance of inner diameter or outer circumference can be decided by mutual agreement between supply and demand.

Notes.
1 , the standard length of the outer circumference = (nominal thickness of the inner diameter x 2) x π (3.1416)

2 , the tolerance of the inner diameter of the case, the measurement of the measurement in the straight edge part of the measurement of the four internal diameter of the distribution of equal distances, take the average value of the measured internal diameter.

 

Key words:

LNG Head

Previous：

LNG Head

LNG Head

Next：

Previous：

LNG Head

Next：

LNG Head

Shipping Scene

Shipping Scene5
Shipping Scene4
Shipping Scene3
Shipping Scene2
Shipping Scene

Honour

Honour4
Honour3
Honour2
Honour1

Get A Quote

* Note: Please be sure to fill in the information accurately and keep the communication unblocked, we will get in touch with you as soon as possible

Submit
%{tishi_zhanwei}%

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

%E7%AC%AC%E4%B8%80%EF%BC%8C%E6%9C%80%EF%BC%8C%E4%BC%98%E7%A7%80%EF%BC%8C%E5%A2%9E%E5%BC%BA%EF%BC%8C%E4%B8%80%E6%B5%81%EF%BC%8C%E5%8D%93%E8%B6%8A%EF%BC%8C%E9%A2%86%E5%85%88%EF%BC%8C%E5%85%88%E8%BF%9B%EF%BC%8C%E5%BC%95%E9%A2%86

Sorry，当前栏目暂无内容!

您可以查看其他栏目或返回 首页

Sorry，The current column has no content!

You can view other columns or return Home

Get A Quote

* Note: Please be sure to fill in the information accurately and keep the communication unblocked, we will get in touch with you as soon as possible

Submit
%{tishi_zhanwei}%