STEEKFLENS
Spectacle Line Blind and Flangehood™
Dutch company Steekflens BV manufactures spectacle blinds, sliding blinds and flangehoods for industrial needs. Starline Valves Oy represents their products in Finland.
Spectacle line blind
BETWEEN EN1092-1 FLANGES
A spectacle blind, or reversible blind, has the same function as a spade, namely to temporarily stop the supply of (hazardous) substances in a pipeline. If frequent maintenance is performed on the same part of a pipeline, you can opt for a spectacle blind. This can remain mounted to the flange and be rotated if the supply of liquid or gas needs to be stopped.
Spectacle Line Blind: Standard materials
Also available in ASME B16.48 and JIS B-2220.
Steekflens manufactures Spectacle Line Blinds according customer specifications also.
Spectacle Line Blind: Measurements and thicknesses

Bigger sizes on request. Other pressure class on request.
Sheet thickness
The indicated thicknesses are theoretical thicknesses. However, Steekflens will always use the standard trade plate thicknesses. As a result, the thickness of the blindspades could end up being higher than the theoretical thicknesses. When machining the flanges (e.g. gasket surfaces), Blindspades and Spectacle blinds can be delivered in 2 (welded) parts. Welding complies with ASME B 16.48-2010 chapter 4.1. Other dimensions according customer specification available on request.
Flangehood™
During turnarounds and factory shutdowns, a lot of inline equipment is removed so that the pipelines are exposed to dust, moisture and dirt from outside during repair/ overhaul. A temporary sealing of the pipe parts is necessary to prevent dirt, rainwater and other undesirable attributes from entering the pipe.
Flangehood™: Safe and fast sealing of open flanges

The traditional solution is to seal the open flange or pipe with a plastic bag secured with tape or tyraps. Such a seal is vulnerable and inefficient. It hinders a smooth inspection and after inspection the temporary seal must be repaired.
Steekflens.nl offers a unique and simple solution to work quickly and safely and still be able to inspect the pipe with the FlangeHoodTM. It is re-usable which supports well the sustainability.
Flangehood™: Features
Flangehood™: 6 types suitability table

Steekflens product portfolio
Book an appointment with our sales representative for a Steekflens product demonstration:
Southern Finland

Lalli Jäppinen
+358 40 533 5592
Central Finland

Mikko Koivu
+358 40 864 9134
Western Finland

Harri Koski
+358 50 433 5458
Eastern Finland

Ilari Saranpää
+358 50 431 2453
Northern Finland

Juho Härö
+358 40 864 9636
