Flowserve 400-D - Manual (Page 2)

Flowserve Nordstrom Valve Sealants ............................................2
Functions of Nordstrom Valve Sealants ........................................2
400-D Hydraulic Hand Gun ...........................................................3
Operation ......................................................................................4
Kits and Accessories ....................................................................5
Parts List ......................................................................................6
Illustrations ...................................................................................6
Care and Maintenance ..................................................................8
Troubleshooting Guide ................................................................11
Authorized Distributors ...............................................................12
Flowserve Nordstrom Valve Sealants
At Flowserve our primary goal is to serve lubricated valve
users with the highest quality sealant and sealant injection
equipment.
We offer:
• A broad variety of valve sealants
• A flexible, service-oriented manufacturing
facility providing outstanding quality
• An experienced, dedicated staff ready to
serve your needs
The success of Flowserve comes from customer service.
Competent, experienced personnel handle your orders from
development, to order entry, to manufacturing, to shipping.
We supply the most advanced formulations. Our high-
quality sealants range from -85°F to 700°F (-65°C to 371°C)
and from air and water applications to the most aggressive
line fluids.
1. Drop-Tight Seal: To secure an absolutely tight seal, the film of
the sealant works to form a seal between the sealing surfaces
of the valve. The seal is formed by sealant transmitted through
a system of passageways around the valve ports. With proper
selection of sealant for your particular service, a seal can be
retained over a wide range of
temperatures and pressures.
2. Lubrication: Prevents metal-to-metal contact of the valve
sealing surfaces by filming over irregularities. No matter how
finely ground a metal surface may be, the metal is a series of
tiny peaks and valleys. As one metal surface slides against
another, friction is set up and adhesion, shearing or plowing
may result. A protective film of sealant between the bearing
surfaces prevents metal-to-metal rubbing.
3. Renewable Seat: There is no need to disassemble a
lubricated valve or to remove it from service to replace mildly
damaged seats. Sealant, as a structural part of lubricated
valves, provides a flexible and renewable seat, eliminating
the necessity of force-fit contact to effect a seal. For this
purpose, the sealant not only must have proper plasticity, but
also resistance to line fluids such as solvents and chemicals.
Sealant forms a seal between the sealing surfaces of the valve
even under pressure.
4. Plug Jacking: The fundamental operating principle of the
traditional lubricated plug valve design lies in the application
of Pascal’s Law. The law states that a unit of pressure applied
to the liquid contained in a sealed vessel is transmitted
to every part of the liquid with undiminished force, thus
multiplying the force many times, depending on the area of the
interior of the vessel. The sealant, under pressure developed
by sealant injection, supplies the hydraulic means for lifting
the plug from its tapered seat when and if that force is needed
to free the plug for easier operation.
Contents
Functions of Flowserve Nordstrom Valve Sealants
2
400-D HYDRAULIC HAND GUN
Flow Control
Nordstrom Valves