H
W
A
L
MUELLER
®
Shur Stop
TM
Unit 812 PE Line Stopping System
Equipment, Parts and Dimensions
4
5
4. Stopping Machine
The Stopping Machine is composed
of:
• A stopping machine with bypass
valve, bleed valve and available gas
source (equalizer);
• An expanding stopper consisting of
two flanges.
On the upper part of the stopping
bar there is an operating square that
when turned (clockwise) the two
flanges compress resulting in the
expansion of the sealing ring.
The result is full contact between the
sealing ring and the inner wall of the
pipe, ensuring complete gas control
The affect is 100% stop off.
3. Slide Gate Valve
The Slide Gate Valve consists of a
sliding gate housed between two
flat bodies; pressure is held firmly
by two O-rings, one above and one
underneath. The valve is fitted with
an internal pressure equalizer which
allows easy opening when pressure
varies between the upper and lower
parts of the valve. To open and close
the valve, turn the operating square
approximately a quarter turn.
CAUTIoN: Never leave the
valve with the gate in the closed
position when not in use. In
the event that the gate is stuck,
loosen the screws holding the two
valve bodies, bring the gate to the
open position and retighten the
screws.
DIMENSIoNS – Inches (mm)
PE PiPE L
W
H
PASSAgE
Ø
A WT – lbs (Kg)
8" – 12" 29.23 (742.5) 21.81 (554) 8.00 (203.5) 10.90 (277) 172.0 (78)
slide gate ValVe
stopping maChine
!
DIMENSIoNS – Inches (mm)
PE PiPE L
W
H
WT – lbs (Kg)
8" 23.42 (595) 16.92 (430) 41.92 (1065) 240.3 (109)
12" 31.96 (812) 19.29 (490) 54.25 (1378) 481.6 (218)
Upper Valve Body
Equalization Valve
Upper Flange
Gate
Lower
Flange
operating Square
Lower Valve Body
L
H
Long Handle
Safety Ring
Bypass
Throttle
Short Handle
W
Bleed
Valve
Stopper
operating Square
Weights
Sealing Ring
