Instructions / Parts Drawing
Hypro 2009
Printed in the USA
FLOW TECHNOLOGIES GROUP
Installation Instructions for Piston Seal Kit No. 3430-0747
1. Remove the adjustment cap from the top of the valve assembly.
2. Once cap is removed, the spring and spring plate can be removed.
3. Using a .625 (5/8”) hex wrench, unscrew and remove the old sleeve and
piston assembly.
4. If the orifice washer didn’t come out with the sleeve assembly, use a valve
extractor tool (Hypro P/N 3010-0057), to reach down inside the body. Place
the extractor inside the orifice hole, expanding the tool, and then pull up,
removing the SST orifice washer as shown in Figure 1.
(This part is re-used
so do not discard it.)
5. Using the same extractor tool, reach down inside the body and remove the
seat by placing the extractor inside the seat hole, expanding the tool, and
then pulling up, removing the SST seat as shown in Figure 2.
6. Reassemble the new 3430-0747 kit in the reverse order as disassembly.
7. See Figure 2 for proper assembly direction of the new SST seat ring.
Seat must be installed with identification ring up as shown.
8. Orifice washer must be reassembled after seat and before installation of
new sleeve assembly or valve operation will be compromised.
NOTE
:
• O-rings on seat and outer sleeve should be lubricated prior to assembly to
ensure proper sealing.
• Piston and sleeve assembly should not be disassembled for any reason.
It is lubricated at the factory and should remain assembled as a unit.
Fig. 2
Fig.1
Piston and Seat
Repair Kit
Part No. 3430-0747
3300-0103 Model Only
No. 3430-0747 Kit
