Page 37 - publication

couplings for grooved-end pipe
Introduction
Couplings
Outlets
Fittings
Val
ves &
Accesso
ries
HighPressure
Advanced CopperMethod (IPS)
DI-LOK
®
Nipples
Plain-EndFittings
HDPECouplings
Sock-It
®
Fittings
StainlessSteel Method
Roll
Groovers
Installation& Assembly
SpecialCoatings
DesignServices
Technical
Data
Master Format3 Part Specs.
PictorialIndex
CTS Copper
System
www.anvilintl.com 37
Fig. 7013
Gruvlok Flanges (#300 Flange)
A. The sealing surfaces A Max. to B Min. of the mating fange
must be free from gouges, undulations and deformities of any
type to ensure proper sealing of the gasket.
B. Gruvlok Flanges are to be assembled on butterfy valves so as
not to interfere with actuator or handle operation.
C. Do not use Gruvlok Flanges within 90 degrees of one another
on standard fttings because the outside dimensions may cause
interference.
D. Gruvlok Flanges should not be used as anchor points for tierods
across non-restrained joints.
E. Fig. 7013 Gruvlok Flange sealing gaskets require a hard fat
surface for adequate sealing. The use of a Gruvlok Flange
Adapter Insert is required for applications against rubber faced
valves or other equipment. The Gruvlok Flange Adapter Insert
is installed between the Gruvlok Flange sealing gasket and the
mating fange or surface to provide a good sealing surface area.
F. Gruvlok Flanges are not recommended for use against formed
rubber fanges.
G. Contact Gruvlok for Di-Electric Flange connections.
Applications which require a Gruvlok Flange Adapter Insert:
1. When mating to a wafer valve (lug valve), if the valve is rubber
faced in the area designated by the sealing surface dimensions
(A Max. to B Min.), place the Gruvlok Flange Adapter Insert
between the valve and the Gruvlok fange.
2. When mating to a rubber-faced metal fange, the Gruvlok
Flange Adapter Insert is placed between the Gruvlok Flange
and the rubber-faced fange.
3. When mating to a serrated fange surface, a standard fullfaced
fange gasket is installed against the serrated fange face
and the Gruvlok Flange Adapter Insert is placed between the
Gruvlok Flange and the standard Flange gasket.
4. When mating to valves or other component equipment where
the fange face has an insert, use procedure described in note 3.
Rubber Surface
Gruvlok Figure 7013
Flange
B min. A max.
Grooved Pipe
Gruvlok Flange Adapter Insert Gruvlok Flange Adapter Insert Flange
Gasket
Gruvlok Figure 7013
Flange
Grooved Pipe
Mating Flange
Component
Serrated Face
Mating Flange
Mating Flange
GL-2.10