Refrigerating Specialties Division
9
Safe Operation (See also Bulletin RSBCV)
People doing any work on a refrigeration system must be
qualified and completely familiar with the system and the
Refrigerating Specialties Division valves involved, or all other
precautions will be meaningless. This includes reading and
understanding pertinent Refrigerating Specialties Division
product bulletins and Safety Bulletin RSBCV prior to installa-
tion or servicing work.
Where cold refrigerant liquid lines are used, it is necessary that
certain precautions be taken to avoid damage that could result
from liquid expansion. Temperature increase in a piping
section full of solid liquid will cause high pressure, due to the
expanding liquid that can possibly rupture a gasket, pipe or
valve. All hand valves isolating such sections should be marked,
warning against accidental closing, and must not be closed
until the liquid is removed. Check valves must never be
installed upstream of solenoid valves or regulators with electric
shut-off, nor should hand valve upstream of solenoid valves or
downstream of check valves be closed until the liquid has been
removed. It is advisable to properly install relief devices in any
section where liquid expansion could take place.
Avoid all piping or control arrangements that might produce
thermal or pressure shock. For the protection of people and
products, all refrigerant must be removed from the section to be
worked on before a valve, strainer, or other device is opened
or removed. Flanges with ODS connections are not suitable for
ammonia service.
Warranty
All Refrigerating Specialties products are warranted against
defects in workmanship and materials for a period of one (1)
year from date of shipment from originating factory. This
warranty is in force only when products are properly installed,
field assembled, maintained, and operated in use and service
as specifically stated in Refrigerating Specialties catalogs or
bulletins for normal refrigeration applications, unless other-
wise approved in writing by Refrigerating Specialties Division.
Defective products or parts of returned to the factory with
transportation charges prepaid and found to be defective by
factory inspection will be replaced or repaired at Refrigerating
Specialties option, free of charge F.O.B. factory. Warranty
does not cover products that have been altered or repaired in
the field, damaged in transit as a result of accidents, misuse, or
abuse. Products disabled by dirt or other foreign substances
will not be considered defective.
The express warranty above constitutes the only warranty of
Refrigerating Specialties products and is in lieu of all other
warranties, expressed or implied, written or oral, including any
warranty of merchantability or warranty of fitness for a particu-
lar purpose. In no event is Refrigerating Specialties respon-
sible for any consequential damages of any nature whatso-
ever. No employee, agent, dealer or other person is authorized
to give any warranties on behalf of Refrigerating Specialties
nor to assume for Refrigerating Specialties any other liability in
connection with any of it products.
Fig. 7
BOLT TORQUE TABLE
ITEM
PORT SIZE
TORQUE
7/16" Flange Bolt
1/2"
28 ft lb
5/8" Flange Bolt
3/4" - 2"
85 ft lb
3/4" Flange Bolt
2-1/2" - 3"
105 ft lb
7/8" Flange Bolt
4"
150 ft lb
5/16"-18 Bonnet Bolt
3/4" - 4"
11 ft lb
5/16"-18 Adapter Bolt
3/4" - 2"
11 ft lb
5/8"-11 Adapter Bolt
3" - 4"
75 ft lb
Bottom Cap
3/4"- 1-1/4"
150 ft lb
1/2"-13 Bottom Cap Bolt
1-5/8" - 2-1/2"
50 ft lb
5/8"-11 Bottom Cap Bolt
3"-4"
75 ft lb
