Installation Sheet

FV250 Rev. A 7/25/18 Page 4

1. Install stop valve assembly using proper size supply

escutcheon and sweat solder adapter kit if applicable (see

1). Thread sealing compounds should be used on male NPT

threads only.

Aquaﬂ ush

Installation Instructions

3. Insert the ﬂ ush valve tailpiece into the stop valve and hand

tighten the lock nut to the stop valve. Plumb the entire unit

(see 3).

4. Determine the length of vacuum breaker tube required to join

the ﬂ ush valve and ﬁ xture spud. Cut the vacuum breaker tube,

if re quired, to this length (see 4a). Assemble the vacuum

breaker tube assembly and spud nut assembly to the ﬂ ush

valve and ﬁ xture spud (see 4b).

5. Hand tighten spud nut and vacuum breaker tube nut to ﬁ xture and ﬂ ush valve. Adjust the valve assembly for plumb. Tighten

ﬁ xture spud nut, vacuum breaker tube nut and lock nut with a wrench.

2. Prior to inserting the ﬂ ush valve tailpiece into stop valve, be

certain that the O-ring seal is located in O-ring seal groove at

the end of the tailpiece and the locking nut and locking snap

ring are located as shown below (see 2). Care should be

taken not to damage the O-ring when inserting the tailpiece

into the stop valve. If lubrication is needed, wetting the O-ring

with water will be sufﬁ cient.