entegris CR8 Setup guide

P/N 01-1011423 | REV. C 09/18 | INSTRUCTION SHEET
CR8 Manual
Multi-turn Valve
Repair instructions
INSTRUCTIONS
—
CR8 manual multi-turn valves including
all media end connections.
CAUTION! Remove any pressurized
sources from the valve before
attempting repair.
1. Repair kit contents: multi-turn actuator
assembly, diaphragm, bolt plugs, stop
nut and handle. Consult factory if
replacement bolts and lock washers
are needed.
Handle diaphragm so that seal surfaces
are not damaged.
2. Remove four bolt plugs and discard.
NOTE that the media leak port is
parallel to port 1 and points in the
same direction.
Turn handle counterclockwise so valve
is in the open position.
3. Remove four bolts and washers ⁄ turn
at a time in a cross pattern (1, 2, 3, 4)
with a ⁄" hex key. Save bolts and lock
washers unless new ones have been
purchased separately from the repair
kit.
CAUTION! Point actuator away from
personnel for step 4.
Actuator
assembly
Red stop nut
Bolt plugs
Diaphragm
Handle
Media
leak port
Port 1
1 2
4
3

CR8 MANUAL MULTI-TURN VALVE
2P/N 01-1011423 | Rev. C 09/18 | Entegris, Inc.
4. Apply less than 103 kPa (15 psig) air
or nitrogen pressure to port 2 with
port 1 capped to separate actuator
assembly from the body. Discard
actuator assembly and diaphragm
after removal.
5. Clean the sealing surfaces within
the body by spraying with isopropyl
alcohol and drying with clean dry air
or nitrogen.
CAUTION! Do not contact the valve
body seal surfaces as it may cause
damage.
Inspect the body poppet seat for signs
of damage and/or wear. Do not touch
the poppet seat. Magnification may be
required. If damage is evident, replace
the entire valve.
6. Install diaphragm onto actuator as-
sembly by threading it clockwise into
the threaded stem until it is finger tight.
Turn actuator open by rotating hex
nut on top counterclockwise.
7. Place the actuator assembly onto the
valve body with the media leak port
facing in the same direction as noted
in step 2.
8. Push down on the actuator assembly
so that the four bosses enter the holes
in the body.
Seal
surface
Poppet seal

CR8 MANUAL MULTI-TURN VALVE
3Entegris, Inc. | P/N 01-1011423 | Rev. C 09/18
9. Install four bolts and lock washers into
the holes in the actuator assembly.
CAUTION! It is very important to
perform step 10 exactly as directed.
10. Tighten with a torque wrench to
0.11 N•m (1 in•lb) torque in a cross
pattern (1, 2, 3, 4). Repeat this step
in 0.11 N•m (1 in•lb) increments until
1.02 N•m (9 in•lb) torque is reached.
11. A recommended (but not required)
step is to visually check the gap
between the body and actuator. It
should measure less than 1.1 mm
(0.045") and not vary by more than
0.38 mm (0.015"). Use a feeler gauge
or caliper to measure the gap at the
corners of the valve.
12. Turn actuator nut clockwise to
0.56 N•m (5 in•lb) with a ⁄" deep
well socket.
13. Install red stop nut by turning it
clockwise by hand until it stops. Turn
stop nut counterclockwise ⁄–⁄ turns
and align corners of the stop nut and
actuator nut as shown.
14. Install the handle temporarily upside
down as shown. Turn the handle
clockwise with a comfortable finger
tight torque.
1
24
3
Red stop nut
Actuator nut

CR8 MANUAL MULTI-TURN VALVE
4P/N 01-1011423 | Rev. C 09/18 | Entegris, Inc.
15. Port seal test: With the valve in closed
position, apply 552 kPa (80 psig)
pressure to port 2.
No leakage should be observed at
port 1 over a 60-second period of
time.
If leakage is observed, repeat steps
12–13.
16. Once the port seal test passes,
carefully remove handle and install in
the correct position as shown without
disturbing the position of the hexes.
17. Media test: Put valve in open position
as shown and apply 553 kPa (80 psig)
air or nitrogen pressure to port 2.
Attach a tube to the vent port and
submerge the other end in water.
Wait for 30 seconds and then observe
for one minute. No bubbles should be
seen in the next one minute period.
18. Install the bolt plugs.

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Billerica, MA 01821
USA
Corporate Headquarters
Tel [phone]
Fax [phone]
Toll Free 800 394 4083
Customer Service
www.entegris.com
P/N 01-1011423 | Rev. C 09/18
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©2011-2018 Entegris, Inc. | All rights reserved. | Printed in the USA | 3210-7113ENT-0918
REPAIR KIT INFORMATION
—
Repair parts kit
DESCRIPTION QUANTITY
Actuator assembly 1
Diaphragm 1
Bolt plug 4
Red stop nut 1
Handle 1
Customer-supplied items
⁄" hex keys
Torque wrench capable up to
1.02 N•m (9 in•lb)
⁄" hex driver that fits the customer-
supplied torque wrench
Isopropyl alcohol
Regulated air or nitrogen supply up to
552 kPa (80 psig)
Feeler gauge set up to 1.1 mm (0.045")
or caliper
Flexible tubing with 6.35 mm (0.25")
inside diameter or smaller
Standard port connection cap
Port connection cap with a hole in the end
that accepts a ⁄" tube that fits tightly
Container that allows 25 mm (1") deep
water level
DI water
⁄" deep well socket