Special installation is required gasket

1, the installation and the sudden planar spiral wound gasket sealing flange match, should be taken to ensure the security seals concentric with the pipe, commonly used to strengthen the outer ring and the inner circumferential surface contacts the bolt to locate, not eccentrically mounted. Tongue and groove sealing surface mounting flange of the basic type spiral wound gasket, attention should be consistent with the groove wall to keep the gap.
2, the installation of the metal-coated gasket narrow width, the thickness of the plate should be placed in a lateral pads, and then pressing the flange, the coated metal gasket to prevent compression of the filler, the interfaces of the metal shell (or take the mouth) expansion opened, damaged metal jacketed gaskets.
3, when the flange temperature higher than 200 ℃, the flange and gasket sealing surface should be coated with sealant between to prevent high temperature gasket and flange sealing surface sintering, to increased maintenance and replacement gasket trouble.
4, the sealing surface is not flat, the surface can be coated with the sealing gasket sealant before installation. Sealants generally manganese dioxide, lead, graphite powder and survived after linseed oil (drying) components. According to the cable sealing medium, temperature and pressure conditions choose the appropriate media type and brand of liquid sealant.
5, for the installation octagonal metal ring gasket, when the metal ring gasket and flange seal groove machining is not ideal, it can be achieved by coordination study snug fit. For large diameter metal ring gasket, with research more difficult, in order to fill tiny uneven metal surface, use sealant.