Monday, July23, 2018

'groco Seacocks'

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Sheet 200 Series 1 of 1
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 SBVP 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 1827 NPT
expanding plug principle A wingnut on the back of
each valve is when in the valve is in 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
Retighten the wingnut each time Upgrading Many boat owners prefer the simplified
operation of GROCO BV SBV SBVP 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 service can Safety Seacock or combination
be expected If the valve becomes difficult to turn at
haulout remove and inspect the valve plug The
rubber should be free of bumps that might be
created due to extended periods of nonuse 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 the valve plug and coat lightly
with silicon based
Item Name Qty SV500 SV750 SV1000 SV1250 SV1500 SV2000 SV2500
1 Wingnut 1 SV502 SV752 SV752 SV1502 SV1502 SV2502 SV2502
2 Body 1 SV500B SV750B SV1000B SV1250B SV1500B SV2000B SV2500B
3 Disc 1 SV503 SV753 SV103 SV1252 SV1503 SV2003 SV2503
4 Plug 1 SV506 SV756 SV1006 SV1256 SV1506 SV2006 SV2506
5 Handle 1 SV506A SV756A SV1006A SV1256A SV1506A SV2006A SV2506A
6 Cover 1 SV501 SV751 SV101 SV1251 SV1501 SV2001 SV2501
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 7124242 Ask for Seacocks Service Department
7240 Standard Drive x Hanover MD 21076 x

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