Application
Flanged jacketed ball valves are isolating valves designed to fully open or
close the service fluid flow. These valves are used when the service fluid is
solid at ambient temperature (e.g. Sulphur or bitumen) and it is necessary to
keep the fluid liquid to operate the valve. Steam or oil is used as heating
medium which allows to heat up the service fluid above it's melting point thus
enabling operation of the valve. They are not designed to be used for throttling
or regulating purposes.
The scope of application of the ball valve depends directly on materials and
on design of the basic valve that is jacketed. Maximum temperature of heating
medium must not exceed maximum working temperature of the valve itself.
It is possible to equip whichever ball valve from KE-ARM
production range with a heating jacket, i. e. straight ball
valves, three-way, high temperature, ball valves according to EN or API
standards etc. The ‚-HJ‘ code is added to the valve's type
to distinguish the jacketed valve (e.g. wafer type ball valve with soft seats
has a code KM 9107.1–01, with a jacketed modification it is KM
9107.1–01-HJ.
Approved for fluids in groups 1 (hazardous) and 2 according to
2014/68/EU.
Considering the individual solution for each contract, it is
impossible to specify all ball valve's parameters here. Do not hesitate to
contact our office to get the quotation according your
requirements.
Production range
- DN 10 – DN 200, PN 16 – PN 250
- NPS ⅜″ – NPS 8″, Class 150 – Class 1500
Characteristics
- floating ball,
- full bore,
- anti-static design,
- stem secured against release (anti-blow-out),
- sealed with:
- O-rings – NBR, EPDM, FPM (FKM), HNBR, FFKM,
- Graphite.
Operation
- hand lever,
- hand wheel with worm gear,
- pneumatic actuator,
- electric actuator.
Connection to piping
- internal thread (KM 9101.X-HJ) – G (BSPP), NPT, R (BSPT), Rp
- weld end (KM 9103.X-HJ) – butt or socket
- wafer (KM 9107.X-HJ) – EN, API, GOST
- flanged (KM 9108.X-HJ) – EN, API, GOST
Compliance with standards
- European standards:
- EN 1983, EN 12516–1, EN 1092–1, EN 17292,
- EN 558–1 series 1 or not standardised, EN 12982 series 68,
- EN 228–1,
- EN ISO 80079–36 (ATEX) – II 1G Ex h IIB T6…T1 Ga,
- American standards:
- API 608, ANSI B 16.5, ANSI B16.25, ANSI B 1.20.1,
- ANSI B 16.10 or not standardised,
- international standards:
Testing
- EN 12266–1, EN 12266–1, leakage rate A – zero
leakage,
- API 598, or acc. to API 6D – zero leakage.
Materials
- standard: S355J2, A350 LF2, 1.4541, 1.4571,
- upon request: P265GH, 1.4306, 1.4404, 1.4539, 1.4462, 1.7335 , Hastelloy
C276, and other.
Optional accessories, adjustments and services
- fire-safe design – fire resistance in accordance with EN ISO 10497
(API 607)
- lockable handle with a padlock – for locking opened / closed position of
the valve
- extended stem – e.g. for the reason of insulation of the valve and
pipeline
- limit switches
- documentation according to EN 10204 3.1 or 3.2
- special adjustments according to customer requests
- design according to standard NACE MR 0175 or ISO 15156 for fluids with
hydrogen sulfide (H2S)
- design for application in potentially explosive atmospheres according to the
directive 2014/34/EU (ATEX):
- I M1 Ex h I Ma,
- II 1G Ex h IIC T6…T1 Ga,
- II 1D Ex h IIIC TX °C Da.
Fluids
The ball valve is suitable, for example, for these fluids (after consulting
the manufacturer):
Sulfur, asphalt, bitumen…
Type designation