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Nominal diameter: DN50 ~ 1200mm, NPS2 "~ 48"
Nominal pressure: PN1.6 ~ 4.2Mpa, Class150 ~ 2500LB
Applicable temperature: -29 ℃ ~ 150 ℃
Drive mode: electric, manual, worm wheel drive, gear driving a
Design and manufacturing standards: GB / T 12237-2007
Structure length standard: GB / T 12221-2005
Socket welding standard: GB12224, ANSIB16.25
Pressure and temperature rating: GB / T 12224-2005
Test standard: GB / T 13927 -2008
Features:
1, the fire structure design:
According to API607 / BS6755 norms, the use of fire in the valve site,
the secondary seal made of non-metallic materials in the ring
decomposition or destruction under high temperature, then the primary
metal seal can quickly close the ball Play a seal. Unique double-stage
sealing seat structure design to ensure the reliability of the valve
seat fire.
2, anti-static design: the
use of spring and ball electrostatic leads to the device through the
valve stem to form an electrostatic channel between the ball, so that
the ball and the ring in the process of friction generated by static
electricity lead to the earth through the valve body to prevent
Electrostatic sparks may cause a fire or explosion hazard.
3, the sealed emergency ambulance and valve lubrication
valve seat and stem seals appear damaged, there can be leakage through
the injection valve sealing grease to achieve the role of instantaneous
seal. The valve under normal working conditions, you can inject grease
through the grease injection valve stem and spherical lubrication, the
valve opening and closing more flexible and lightweight.
4, seat structure design:
A. Both the upstream and downstream single piston seat:
with double blocking / double discharge function, can simultaneously
cut off from the upstream and downstream media; with automatic pressure
relief function: valve cavity retention media due to temperature Of the
increase in the case of abnormal pressure booster, the valve seat can
automatically pressure relief (discharge to the low pressure end).
B. Double piston seats are used both upstream and downstream:
With double blocking function, it can cut off the medium from the
upstream and downstream simultaneously. The medium in the valve cavity
of the valve can not be automatically discharged, and a relief valve
needs to be set on the valve body to set the pressure Relieve abnormal
pressure rise in the valve chamber.
C. Upstream with single-piston valve seat, downstream with dual-piston valve seat:
with double blocking function, which can cut off the medium from the
upstream and downstream simultaneously; with automatic directional
pressure relief function: valve medium stagnant medium due to
temperature rise, In the event of an abnormal pressure boost, the valve
seat can automatically relieve pressure (to the upstream side)
5, Installation of drive installation platform
ISO5211 valve flange design, through the use of brackets and coupling sleeve, easy to install any type of drive.
6, lengthened stem:
for the installation of the valve buried, according to the needs of
installation and operation of the valve stem can be lengthened, lengthen
the stem size according to customer requirements. All sewage pipes,
exhaust pipes and emergency grease devices are lengthened accordingly,
other related pipeline close to the extended parts of the valve, the
valve drain valve, vent valve and grease valve connected to the ground
installation in order to carry out regular maintenance of the main
valve, Valve surface covered with normative corrosion-resistant asphalt,
polyurethane or epoxy coating, in order to adapt to the installation
and use of buried conditions.
7, Lengthen the valve cover:
For the valve which requires to work at low temperature, it increases
the distance between the valve body and the sealing area of the valve
stem by lengthening the valve cover to avoid the influence of
temperature on the seal. The lengthened height can also be determined
according to the standard rules According to the customer's request.
8, the valve structure:
Valves with three body side forging welding structure, eliminating the
import pressure to promote the ball seal seat formed a huge sealing
load caused by excessive torque. The spherical surface finish of the
sphere and the use of inserts with good self-lubricating inserts allow
for smaller opening and closing torques even at the highest operating
pressures.
9, the structural characteristics of welding: the
body around the body with a typical narrow gap submerged arc welding
using a special flux used in welding with the required current-carrying
and slag removal effect, the welding particle size smaller, High
toughness to meet the welding performance of the metal. Welding 100%
ultrasonic testing and hardness testing to ensure the welding quality of
the weld.
10, Finite element analysis: The
valve housing and the inner parts are carefully designed to ensure
reliable operation under various operating conditions. The strength of
the valve housing, the inner force of the inner part and the operating
torque of the valve stem are measured by finite element analysis
Simulation analysis of conditions, for easy problems and weaknesses to
optimize, to ensure superior valve performance.
Product Size: PN16 / PN20 / CLASS150
DN | NPS | L | H1 | H2 | W | Weight (kg) | Torque (NM) | |||
RF | WE | RJ | WE | RF / RJ | ||||||
50 | 2 | 178 | 216 | 191 | 99 | 210 | 300 | 22 | 25 | 42 |
65 | 2 1/2 | 191 | 241 | 203 | 110 | 215 | 350 | 30 | 35 | 68 |
80 | 3 | 203 | 283 | 216 | 120 | 225 | 400 | 35 | 40 | 92 |
100 | 4 | 229 | 305 | 241 | 148 | 255 | 650 | 48 | 95 | 145 |
150 | 6 | 394 | 457 | 406 | 218 | 237 | 460 | 190 | 230 | 210 |
200 | 8 | 457 | 521 | 470 | 260 | 290 | 600 | 250 | 295 | 625 |
250 | 10 | 533 | 559 | 546 | 292.5 | 323.5 | 600 | 400 | 430 | 835 |
300 | 12 | 610 | 635 | 622 | 327.5 | 359.5 | 750 | 550 | 620 | 1150 |
350 | 14 | 686 | 762 | 699 | 365 | 395 | 750 | 820 | 900 | 1560 |
400 | 16 | 762 | 838 | 775 | 437.5 | 436.5 | 750 | 1100 | 1220 | 2375 |
450 | 18 | 864 | 914 | 876 | 485 | 487.5 | 750 | 1400 | 1550 | 2850 |
500 | 20 | 914 | 991 | 927 | 522.5 | 525 | 750 | 1750 | 1950 | 3580 |
550 | 22 | 991 | 1092 | 1004 | 575.5 | 560 | 750 | 2200 | 2350 | 4275 |
600 | 24 | 1067 | 1143 | 1080 | 607.5 | 617.5 | 750 | 2800 | 3050 | 5650 |
650 | 26 | 1143 | 1245 | 1156 | 640 | 632.5 | 750 | 2900 | 3250 | 6520 |
700 | 28 | 1245 | 1346 | 1286 | 670 | 682.5 | 750 | 3400 | 3700 | 7380 |
750 | 30 | 1295 | 1397 | 1308 | 710 | 760 | 750 | 4800 | 5300 | 8380 |
800 | 32 | 1372 | 1524 | 1385 | 730 | 780 | 750 | 5500 | 6000 | 9370 |
850 | 34 | 1473 | 1626 | 1486 | 780 | 830 | 750 | 7650 | 8550 | 12065 |
900 | 36 | 1524 | 1727 | 1537 | 830 | 880 | 750 | 8865 | 9845 | 14760 |
1000 | 40 | 1753 | 1956 | 1985 | 875 | 920 | 750 | 12350 | 13560 | 18465 |
1050 | 42 | 1829 | 2083 | 2155 | 910 | 945 | 750 | 13250 | 14280 | 29210 |
1200 | 48 | 2032 | 2388 | 2418 | 1070 | 1085 | 750 | 20500 | 21800 | 44500 |