Spacer Ring / Spade Flanges

Spacer Flange/Spacer Ring

Spacer flange is machined from a single piece of metal that is cut to match the pipe size, fit between two pipe flanges and requires an additional gasket when it is installed.

Also, the bolts will need to be lengthened depending on what piping class and size blind is used. The thickness of the spectacle blind is specified based on the line pressure and pipe size

Spade Flange

Spade Flange Spacers are basically the same as Spectacle Blinds, except that both are not attached to each other.

Spade Flange be applied in systems where maintenance is often not necessary, or in applications with large pipe sizes. 

Spade Flange, Spades and Ring Spacers should be made from a plate or forging specification, approved for use by ASME B31.3, of essentially the same chemical composition as the mating flanges and piping involved.

Size

3/8″~120″
DN10~DN3000

Pressure：150-2500 lbs

Materials

Carbon Steel	ASTM A105
Alloy Steel:	ASTM A182 F1/F5/F9/F11/F22/F91/F92 Etc
Duplex Steel:	Duplex F51 2205 UNS S31803, Super Duplex 2507 (UNS S32750), F55 (UNS S32760)
Stainless Steel:	ASTM A182 F304 F304L F304H F309 F310 F310S F316 F316L F316 F316Ti F317 F317L F321 F347 F347H
Duplex Stainless Steel:	ASTM A182 F51/F53/F55/F60
Nicke alloys:	Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800
Cu-Ni:	90/10,70/30

Standards

ANSI B16.48