Spot Reference Number: 11539ST-INV
 

FOR SALE

Product
ST_STRUC
Chemistry

Welding Neck Flanges:
The welding neck flange is normally referred to as the "high hub" Flange. It is 
designed to transfer stresses to the pipe, thereby reducing high stress concentrations 
at the base of the Flange. The welding neck flange is the best designed butt-welded 
flange of those currently available because of its inherent structural value. It 
is expensive because of the design. 
Threaded (Screwed) Flanges:
The threaded flange is similar to the slip-on flange, but the bore is threaded. 
Its chief merit is that it can be assembled without welding, explaining its use 
in low pressure services at ordinary atmospheric temperatures and in highly explosive 
areas where welding create a hazard. 
Slip-On Flanges:
The slip-on flange has a low hub because the pipe slips into the flange prior to 
welding. It is welded both inside and out to provide sufficient strength and prevent 
leakage. Slip-on flanges are all bored slightly larger that the O.D. of the matching 
pipe. They are preferred over welding neck flanges by many users due to their lower 
initial cost, but final installation cost is probably not much less than that of 
the welding neck flange because of the additional welding involved.

Lap joint Flanges:
The lap joint flange is practically identical to a slip-on flange except it has 
a radius at the intersection of the bore and flange race. This radius is necessary 
to have the flange accommodate a lap joint stub end. Normally, a lap joint flange 
and a lap joint stub end are mated together in an assembly system.

Blind Flanges:
The blind flange is a flange without a bore. It is used to close off the ends of 
a piping system and/or a pressure vessel opening. It also permits easy access to 
the interior of a line or vessel once it has been sealed and must be reopened.

Socket Welding Flanges:
The socket welding flange is similar to a slip-on flange except it has a bore and 
a counter bore dimension. The counter bore is slightly lager than the O.D. of the 
matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on 
flange. The diameter of the smaller bore is the same as the I.D. of the matching 
pipe. A restriction is built into the bottom of the bore which sets as a shoulder 
for the pipe to rest on. This eliminates any restriction in flow when using a socket 
welding flange.

Standard:JB/T81 GB/T9112-9124, HJ20592-20635, SH3406, ANSIB16.5 JISB2220. 
Pressure class (Mpa): 0.25--50 

Material:Carbon steel(WPB A234), alloy steel,stainless steel

Packing: Fit for sea shipment packing and customer¡¯s requirement. Wooden box 

We are able to provide customers with quality products and perfect service.
If you want to know more information, please kind to visit our website. 
Quantity FOR SALE
100000000000000
Cwt
Asking Price
100
/MT
Dimensions

flanges
FOB

FOB main sea port of China
Other Info

Welding Neck Flanges:
The welding neck flange is normally referred to as the "high hub" Flange. It is 
designed to transfer stresses to the pipe, thereby reducing high stress concentrations 
at the base of the Flange. The welding neck flange is the best designed butt-welded 
flange of those currently available because of its inherent structural value. It 
is expensive because of the design. 
Threaded (Screwed) Flanges:
The threaded flange is similar to the slip-on flange, but the bore is threaded. 
Its chief merit is that it can be assembled without welding, explaining its use 
in low pressure services at ordinary atmospheric temperatures and in highly explosive 
areas where welding create a hazard. 
Slip-On Flanges:
The slip-on flange has a low hub because the pipe slips into the flange prior to 
welding. It is welded both inside and out to provide sufficient strength and prevent 
leakage. Slip-on flanges are all bored slightly larger that the O.D. of the matching 
pipe. They are preferred over welding neck flanges by many users due to their lower 
initial cost, but final installation cost is probably not much less than that of 
the welding neck flange because of the additional welding involved.

Lap joint Flanges:
The lap joint flange is practically identical to a slip-on flange except it has 
a radius at the intersection of the bore and flange race. This radius is necessary 
to have the flange accommodate a lap joint stub end. Normally, a lap joint flange 
and a lap joint stub end are mated together in an assembly system.

Blind Flanges:
The blind flange is a flange without a bore. It is used to close off the ends of 
a piping system and/or a pressure vessel opening. It also permits easy access to 
the interior of a line or vessel once it has been sealed and must be reopened.

Socket Welding Flanges:
The socket welding flange is similar to a slip-on flange except it has a bore and 
a counter bore dimension. The counter bore is slightly lager than the O.D. of the 
matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on 
flange. The diameter of the smaller bore is the same as the I.D. of the matching 
pipe. A restriction is built into the bottom of the bore which sets as a shoulder 
for the pipe to rest on. This eliminates any restriction in flow when using a socket 
welding flange.

Standard:JB/T81 GB/T9112-9124, HJ20592-20635, SH3406, ANSIB16.5 JISB2220. 
Pressure class (Mpa): 0.25--50 

Material:Carbon steel(WPB A234), alloy steel,stainless steel

Packing: Fit for sea shipment packing and customer¡¯s requirement. Wooden box 

We are able to provide customers with quality products and perfect service.
If you want to know more information, please kind to visit our website. 
Contact Name
Sum Xu
Company
Sunny Steel Enterprise Ltd.
Address

No.273, Siping Road, Shanghai,200081, China
Skype:sunnysteel  Msn:sunnysteel@hotmail.com
Http://www.sunnysteel.com
Telephone
+86-21-3378-0199
Fax
+86-21-5107-9722
   
EMail
sales@sunnysteel.com
   
   
eMail Bid or request for more information to: sales@sunnysteel.com

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