Viega Megapress, Руководство по установке

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1.4 Fitting description
Viega ProPress fittings are offered in more than
600 configurations in copper, bronze, 304 and 316
stainless steel, including: elbows, couplings, ball
valves, reducers, tees, reducing tees, threaded
adapters, unions, caps and flanges. Viega ProPress
fittings for Stainless are designed to be used with
only Viega’s stainless steel pipe.
1. Viega’s unique, patented Smart Connect feature
helps installers ensure that they have pressed
all connections.
2. Viega offers three different sealing elements
to suit virtually any application: EPDM, HNBR
and FKM.
3. Viega’s distinctive hexagonal pressing pattern
bonds fitting and pipe and provides the
mechanical strength for the connection.
4. All Viega ProPress
fittings are designed with
cylindrical pipe guides to
keep the pipe straight and
protect the sealing element
during assembly.
Fittings that do not
have cylindrical pipe
guides risk making an
unsecure connection.
Without the pipe
guides, installers can
possibly damage the
sealing element.
2
3
1
4
Viega fittings are
pressed before, after
and on top of the
sealing element in
a single step, which
creates a permanent
connection that
is secure and
guaranteed to last.
1.4.1 Viega large-diameter fittings
Viega 2½" to 4" fittings feature an EPDM or FKM
sealing element, stainless steel grip ring and PBT
separator ring as shown in Figure 1.1.
The grip ring comes standard in all 2½" to 4"
fittings. The grip ring is a stainless steel ring with
teeth, which grips the tube and ensures that the
fitting is locked securely in place.
The PBT (Polybutylene Terephthalate) separator
ring ensures that the sealing element and grip ring
perform at a maximum capacity by providing a
positive physical separation.
Whether working with stainless steel or copper,
ProPress XL fittings are designed to be pressed
with RIDGID’s XL-C press rings and V2 actuator.
This will produce a non-detachable, permanent
connection.
1.4.2 Pipe
Viega stainless steel pipe is offered in either 304
stainless or 316 stainless to complement the Viega
ProPress for stainless fittings and offer a complete
system solution. Viega stainless steel pipe meets
the requirement of ASTM A312 or ASTM A554 for
schedule 5 304 and 316 stainless steel pipe.
Sealing
Element
Stainless Steel
Grip Ring
PBT
Separator
Ring
Figure 1.1