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Spades And Ring Spacers

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Spades and Ring Spacers are basically the same as Spectacle Blinds, except that both are not attached to each other.

Spades and Spacers be applied in systems where maintenance is often not necessary, or in applications with large pipe sizes. Depending on the flange size and the Pressure Class, Spades can weigh hundreds of pounds. To prevent unnecessary weight to a flange connections, usually will be chosen not for a Spectacle Blind, but for 2 separate parts.

Ring Spacer

So as for the Spectacle Blind already described, maintenance on a pipesystem can be a reason to temporarily replace a Ring Spacer for a Spade. By loosening of all bolts, and half of the bolts temporarily remove, the Spade or Spacer can be placed. After replacing the gaskets (new gaskets are to recommend), the bolts can be re-assembled and tightened.

A small problem is that we basically can not see, or a Spade or a Spacer mounted between the flanges. Therefore the handles are often specially marked, or both have a different design; a customer often provides its own specification.

What should never lack is, that in the handle, the diameter and the Pressure Class of a Spade or Spacer is engraved; this applies also for the Spectacle Blind.

Stainless Steel: 304, 304H, 304L, 316, 316L, 316LN, 316Ti, 309,310S, 317L, 321,347,410,420,440C, 202
Alloy Steel ASTM A 182, GR F1, F11, F22, F5, F9, F91
Carbon Steel: ASTM A 105, IS 2062
Cupro Nickel : 70/30 & 90/10
Hastalloy : C-4, C-22, C276, B-2
Nickel: 200, 201, 205
Monel: 400 & K500
Inconel: 600, 601, 625 & 825
Incolloy: 800 & 800H
Titanium : Gr1 , Gr 2, Gr 5, Gr 7, Gr 9
Other: Alloy 20, Duplex Steel, Aluminium, Brass, Copper, Tantalum, Niobium, Tungsten, Molybdenum
Flanges standard:

· astm

· bs flanges

· din flanges

· is flanges

· pn standard

Flanges value added services

· hot dipped galvanizing

· heat treatment

· cnc machining

· threading.


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