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'groco Seacocks'



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                                                                                                                                             Info Sheet 200 Series, 1 of 1
                                                                                                                                                                                              000401
                                                                                         Maintenance, Parts and Assembly for
                                                                                                 SV Series Seacocks
                                                                  The Concept: GROCO SV series seacocks were                       waterproof grease. Do not use petroleum based
                                                                  manufactured for the marine industry between 1960                grease as it will chemically attack the rubber.
                                                                  and 1993. Production was discontinued in favor of
                                                                  the presently manufactured BV, SBV, and SBV-P                    Some owners may prefer to replace the drain plug
                                                                  series Full Flow Ball Valves.                                    on the side of SV seacocks with a stainless steel
                                                                                                                                   grease zerk (the drain plug thread size for all SV
                                                                  SV series seacocks operate on the simple                         seacocks is 1/8"-27 NPT) .
                                                                  "expanding plug" principle. A wingnut on the back of
                                                                  each valve is hand-tightened when in the valve is in             Winterization: Freezing will damage the seacock. To
                                                                  the desired open or closed position. Tightening the              properly winterize the valve, move the handle to the
                                                                  wingnut expands the rubber plug, thus sealing the                closed position, and tighten the wingnut. Remove
                                                                  valve.                                                           the drain plug on the side of the valve to drain the
                                                                                                                                   water from the valve body. Remove the hose or pipe
                                                                  Operation: When a change in valve position is                    at the top of the valve to drain the water from the
                                                                  desired, the wingnut is loosened enabling the                    connected plumbing.
                                                                  operator to turn the valve handle to the new position.
                                                                  Re-tighten the wingnut each time.                                Upgrading: Many boat owners prefer the simplified
                                                                                                                                   operation of GROCO BV, SBV, SBV-P or BVS series
                                                                  Note: While the wingnut is loose the seapage of a                ball valves (No wingnuts to loosen and tighten, and
                                                                  small amount of water is normal.                                 no temporary water seepage). Your old SV series
                                                                                                                                   seacock may be replaced with a GROCO ball valve,
                                                                  Maintenance: Years of maintenance-free service can               Safety Seacock, or seacock/strainer combination.
                                                                  be expected. If the valve becomes difficult to turn, at
                                                                  haul-out remove and inspect the valve plug. The
                                                                  rubber should be free of bumps that might be
                                                                  created due to extended periods of non-use. (The
                                                                  pressure exerted by the tightened wingnut forces
                                                                  rubber into the drain plug hole and into the inlet and
                                                                  outlet ports, and older plugs do not quickly return to
                                                                  their original shape).
                                                                  Bumps may be removed with light sanding. Replace
                                                                  plugs with excessive bumps.

                                                                  Lubrication: Lubrication is not normally required, but
                                                                  may aid in the easy operion of older valves. Remove
 1999 GROSS MECHANICAL LABORATORIES, INC. ALL RIGHTS RESERVED.




                                                                  the valve plug and coat lightly with silicon based


                                                                    Item Name           Qty    SV-500       SV-750       SV-1000       SV-1250      SV-1500        SV-2000          SV-2500

                                                                     1   Wingnut        1      SV-502       SV-752       SV-752        SV-1502      SV-1502        SV-2502          SV-2502
                                                                     2   Body           1      SV-500-B     SV-750-B     SV-1000-B     SV-1250-B    SV-1500-B      SV-2000-B        SV-2500-B
                                                                     3   Disc           1      SV-503       SV-753       SV-103        SV-1252      SV-1503        SV-2003          SV-2503
                                                                     4   Plug           1      SV-506       SV-756       SV-1006       SV-1256      SV-1506        SV-2006          SV-2506
                                                                     5   Handle         1      SV-506-A     SV-756-A     SV-1006-A     SV-1256-A    SV-1506-A      SV-2006-A        SV-2506-A
                                                                     6   Cover          1      SV-501       SV-751       SV-101        SV-1251      SV-1501        SV-2001          SV-2501
                                                                     7   Bolt         2 or 4   1420X12HB    1420X12HB    1420X12HB     1420X12HB    1420X12HB      1420X12HB        1420X12HB
                                                                     8   Lockwasher   2 or 4   14ETB        14ETB        14ETB         14ETB        14ETB          14ETB            14ETB
                                                                     9   Drain Plug     1      1827HB       1827HB       1827HB        1827HB       1827HB         1827HB           1827HB


                                                                                 For service assistance or information, call (410) 712-4242. Ask for Seacocks Service Department.
                                                                                                   7240 Standard Drive x Hanover, MD 21076 x www.groco.net


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