ASME B16.48 Paddle Blank and Spacer,Spades and Spacers

C&N is a  professional manufacturer of steel forged flange,Paddle Blank and Spacer ,Line blank,spade,spacer in China,

asme b16.48 Paddle Blank and Spacer,Spades and Spacers

Paddle blanks & Spacers,Spade Spacer,Spade and Spacers ,ANSI B16.48, Also called: Line Blinds, line blanks,Spacers and Blanks, Paddle Blinds, Spade Blinds

Spade and Spacers are normally referred to as Line Blinds. which has the similar function as a Spectacle Blind . The Spade or Spacer is fitted in the line between two flanges and is bolted in place. The Spacer is used when the line is required open and the Paddle Blind or Spade is installed when the line is required blocked or closed. To change it from open to closed, only half the bolts need to be removed and the Spade or Spacer is swapped over. The removed bolts are then installed and tightened. The handle protrudes from the pipe and provides an indicator of whether a Spade or Spacer is installed.For smaller Spades and Spacers it is common for the Spacer to have a hole in the handle and the Spade or Paddle blind to have no hole. For larger sizes Spectacle Blinds can be very bulky and occupy a lot of space so Spades and Spacers are preferred.

It is used usually for maintenance when it is required to isolate a section of pipe or isolate a device. Because this is a semi-permanent isolation it is very safe and safety is often the

ASME B16.48 Spectacle Blind – Paddle Blanks – Paddle Spacers


Spectacle Blind
A combination of a Paddle Blank and a Paddle Spacer fabricated, for field convenience, as a single unit. Weight limitations and the associated difficulty of handling heavy pieces in the field are the primary considerations in specifying a Spectacle or Figure 8 Blind over separate components. 

Paddle Blank
A positive shut-off device normally installed adjacent to, or in conjunction with, a valve. Their purpose is to prevent accidental flow through a pipeline or into a vessel.

Paddle Spacer
ASME B16.48 Designed Paddle Spacers are bored to the outside diameter diameter of pipe and are of the same thickness as the Paddle Blank it replaces.

 

Standard Finish: 125 AARH lathe finish

Material AVAILABLE:(carbon steel, stainless steel  SA516 Gr. 60,SA516 Gr. 70, A240 Type 304 S.S.)


ASME B16.48 SPECTACLE BLIND FLANGE
Carbon Steel
(A516 Gr. 70)
150# RF1″
1-1/2″
2″
3″
4″
6″
8″
10″
12″
14″
Carbon Steel
(A516 Gr. 70)
300# RF1″
1-1/2″
2″
3″
4″
6″
8″
10″
12″
14″
Stainless Steel
(A240 304 SS)
150# RF1″
1-1/2″
2″
3″
4″
6″
8″
10″
12″
Stainless Steel
(A240 304 SS)
300# RF1″
1-1/2″
2″
3″
4″
6″
8″
10″
12″

spacer-ring-ansi-b16-48-class-900