Page 129 - publication

hdpe couplings
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 129
FIG. 7305
HDPE Coupling
The Gruvlok Figure 7305 couplings are designed for mechanically joining
HDPE (high density polyethylene) pipe and fttings. Each coupling uses
four bolts to drive the sharply machined housing teeth into the outside
of the pipe. The teeth are arranged in two banks, each bank consisting of
at least three rows of spiral teeth which effectively grip the pipe,
providing a secure mechanical joint with pressure capabilities exceeding
that of the HDPE pipe itself. The banks of teeth are positioned away
from the gasket enhancing the sealing ability of the gasket throughout
its operating temperature range.
The Figure 7305 features a low profle contoured housing with a ramp
along the outside diameter allowing the coupling to glide over most
obstacles, while long lengths of the pipeline are being relocated. This
cost effective easy to assemble mechanical joint is used to join SDR 32.5
to 7.3 wall thickness HDPE pipe conforming to ASTM D 2447, D 3000, D
3035, or F 714 and eliminates the need for costly fusion equipment.
material specifications
HOUSING:
Ductile Iron conforming to ASTM A 536, Grade 65-45-12
COATING:
Rust inhibiting paint – color: orange
Other Colors Available (IE: RAL3000 and RAL9000)
For other Coating requirements contact a Gruvlok Representative.
ANSI BOLTS & HEAVY HEX NUTS:
Heat treated, zinc electroplated, carbon steel oval-neck track bolts
conforming to ASTM A 183. Zinc electroplated carbon steel heavy hex
nuts conforming to ASTM A 563 Grade A or Grade B, or J995 Grade 2.
GASKETS: Properties in accordance with ASTM D 2000
Grade E EPDM (Green color code)
Service Temperature Range: -30°F to 230°F (-34°C to 110°C).
Recommended for water service, dilute acids, alkaline solutions,
oil free air and many chemical services.
NOT FOR USE IN PETROLEUM APPLICATIONS.
Grade T Nitrile (Orange color code)
Service Temperature Range: -20°F to 180°F (-29°C to 82°C).
Recommended for petroleum applications, air with oil vapor,
vegetable and mineral oils.
NOT FOR USE WITH HOT WATER OR HOT AIR.
For specifc chemical applications, reference the Gruvlok Gasket
Recommendations section of the Gruvlok catalog.
WARNING:
1. Gruvlok products for HDPE pipe must be installed using Gruvlok XtremeTM
Temperature Lubricant.
2. The gasket temperature rating may exceed the manufacturer temperature
rating for the HDPE pipe. Consult the HDPE pipe manufacturer for the
temperature and pressure ratings.
GL-2.10