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Top entry & Side entry Ball Valve
API 6D Pipeline Rising Stem Orbit Ball Valve
API 6D Pipeline Rising Stem Orbit Ball Valve
The
SV API 6D pipeline rising stem orbit ball valve adopts special stem to
make the ball rotate after separated from valve seat so that there is no
abrasion between ball and seat when operate the valve. Therefore it has much
lower operate torque and longer service life. It is
suitable for harsh service containing solid particle, sand, short fiber, pulp,
slurry etc. and high speed fluid which erode the ball and seat hardly.
The
SV top entry orbit ball valve also adopts top entry design to make the
maintenance can be made online without dismantling from the pipeline.
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- The Ball of the SV pipeline orbit ball valve rotates after separated from seat
without any abrasion between ball and seat and solve the seat abrasion problem
of traditional ball valve, gate valve and plug valve;
- The SV API 6D orbit ball valve adopts single seat design to ensure bidirectional seal with
zero leakage and solves the problem of pressure increased in the cavity of
valve with double seats;
- Much longer serve life
and less breakdown time than traditional ball valve, gate valve, plug valve duo
to no abrasion between ball and seat;
- Much lower operate torque
duo to no abrasion between ball and seat, except for large size valve, small
handwheel is enough to operate the valve, and gearbox is no need;
- Best flow characteristic
with high Cv value minimizes the corrosion problem;
- Top entry design realizes
maintenance online and reduces breakdown time;
- When the ball separated
from the seat, the fluid can pass through completely and wash out the residue
bonded on the ball surface by 360° around
to achieve self-cleaning and reduces the impact on part of the seat by high
speed fluid;
- The stem guide groove and
double guide pins control the rising, falling and rotating of stem and the
bevel at the bottom of stem can supply mechanical wedge force to press the ball
to the seat to achieve tight seal without influence by pressure difference of
pipeline;
- Ball sealing face is
overlaid by Nickel-based alloy, Hastelloy or other alloy to ensure the
tightness and service life in the harshest working condition;
- Fire safe, automatic
anti-static and anti-blowout stem design;
- When turns the handwheel
anticlockwise, the stem rises and the ball separates from seat first and then
rotates by 90°without abrasion until full opening position while the stem is
lifted to the highest position;
- When turns the handwheel clockwise, the stem falls and the ball rotates by 90° without abrasion until full closing position. Then keep on turning the handwheel for a few rounds, the bevel at the bottom of stem can press the ball to the seat tightly to achieve reliable seal.
Product range:
- Size: 1''~28''
- Pressure
rating: Class 150~1500
- End connection:
RF, RTJ, BW
- Body materials: Carbon
steel A105, WCB, WCC, WC6, WC9, C12A; Low temperature steel LF2, LF3, LCB, LCC;
Stainless steel CF8, CF8M, CF3M, CF8C, F304, F316, F304L, F316L,F316Ti; Duplex
stainless steel 4A, 5A, F51, F53,904L; Super duplex stainless steel F55 etc.
- Ball materials:
A105 overlaid stellite or Ni alloy, LF2 overlaid stellite or Ni alloy, F304
overlaid stellite or Ni alloy, F316 overlaid stellite or Ni alloy etc.
- Seat materials:
A105 overlaid stellite or Ni alloy, LF2 overlaid stellite or Ni alloy, F304
overlaid stellite or Ni alloy, F316 overlaid stellite or Ni alloy etc.
- Operation: Bare
stem, Wrench, gear, electric, pneumatic.
Technical
standards:
- Design: API 6D
- Face to Face:
API 6D
- BW ends: ASME
B16.25, ASME B31.8
- Flanged ends:
ASME B16.5, ASME B16.47
- Wall thickness:
ASME B16.34
- Fireproof test:
API 607, API 6FA
- Test and
inspection: API 598, API 6D
- Pressure and
temperature rating: ASME B16.34