UNS N08800 Incoloy 800 Spectacle Blind Orifice Plate Spacer Ring Paddle Blind

1.Spectacle blinds introduction

Spectacle Blinds are generally applied to permanently separating pipesystems, or just to connect with each other. A Spectacle Blind is a steel plate cut into two discs of a certain thickness.
The two discs are attached to each other by section of steel similar to the nose piece of a pair of glasses. One of the discs is a solid plate, and the other is a ring, whose inside diameter is equal to that of a flange

1. Spectacle blind 2. Flanges 3. Gaskets 4. Stud Bolts

Spectacle Blinds be applied in systems, which regularly need to be separated from other installations. Normally, a Spectacle Blind is mounted in the "open" position so that flow through the pipe is possible. If the Spectacle Blind in the "close" position is rotated, the pipe is blanked off and no flow is possible.

Maintenance on a pipesystem can be a reason to rotate the spectacle in the "close" position. This run will take place through the hole, that is drilled in the connection piece. By loosening of all bolts, and partial removal of their, the Spectacle Blind can be rotated. After replacing the gaskets (new gaskets are to recommend), the bolts can be re-assembled and tightened

SPECTACLE BLIND IN OPEN POSITION

SPECTACLE BLIND IN CLOSED POSITION

2.Nickel Alloy Flanges ASTM B564 INCOLOY FLANGES SPECIFICATION

Specifications : ASTM B564 / ASTM SB 564

Dimensions : ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Size : ½” to 36″

Pressure Ratings :150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64

Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Standards : ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc.

3. Nickel Alloy Flanges INCOLOY 800 FLANGES CHEMICAL COMPOSITION

4. Nickel Alloy Flanges ALLOY 800 FLANGES MECHANICAL PROPERTIES