GILBARCO VEEDER-ROOT Encore 300 Series, Руководство по установке

Страница: 34 / 90

Installation
Page 30 MDE-3985L Encore® Installation Manual · May 2006
4
Loosely connect union halves together.
5
Double-check alignment of pipes, conduit, and frame and secure piping to safety brace using
U-bolts or pipe clamps supplied by contractor.
Note: Misaligned piping could result in a leak.
Figure 3-14: Shear Valve at Grade
Note: It is a mandatory code requirement that the shear section of the shear valve be /
- 3/4 inch (or to shear valve manufacturer's requirement, whatever is tighter) from the
plane of the bottom of the base of a dispenser. Not all shear valve styles will allow
maintenance of this tolerance for Encore Ultra units. A N23047 single poppet male top
Morrison 2x2 636M-0200AV or code approved equivalent shear valve meets code
requirements. Do not modify dispenser plumbing (for example; remove strainer
housing) to accommodate other model valves or install units such that the shear groove
of the shear valve is not /- 3/4 inch of the base plane of the dispenser. Use of a
N23274 Check Valve between the union and strainer housing will also ensure the shear
section is properly located.
6
Tighten union halves together.
7
Tighten anchor bolts at this time. Verify shear valves are properly tightened to the pit box or
shear valve anchor bracket as necessary. If removed earlier, reinstall the vertical cabinet brace
in the lower hydraulic cabinet.
Do not use pry (crow) bar to position dispenser/pump over conduit or pipes. This could
damage valves, conduit or other parts of the unit.
CAUTION
1-1/2
''
NPT Coupling on unit
Installing contractor supplied
black iron piping to coupling,
including union
Shear valve with shear point
installed flush with grade
±0.75 inch.
2
''
NPT Coupling on Ultra-Hi unit