Shut-off and venting of pressure measuring instruments
Flange connection of instruments with threaded connections to pipelines or vessels
For aggressive liquids, gases and vapours, also in aggressive environments
Oil and gas industry, chemical and petrochemical industries, power plants, primary metals
Features of this product
Compact design with low number of potential leakage points reduces overall weight
Threaded mounting of bonnets not wetted to avoid seizure and leaks
Smooth valve actuation, even under high pressure, leads to fault-free operation and long service life
Metal valve seat with leak-tested tightness in accordance with BS6755 / ISO 5208 leakage rate A
Instrument version for “fugitive emissions” according to TA-Luft and ISO 15848-1
Why Choose This Product
Due to its one-piece design, the model IVM monoflange can withstand high over pressures. It ensures a robust and compact mounting of the measuring instrument directly to the process flange. The use of metal and graphite seals allows working at high temperatures.
In combination with pressure measuring instruments, diaphragm seals or level measuring instruments, the valves are suitable for use in critical applications like refineries or steam generation systems. The IVM monoflange can be used for “fugitive emissions” in chemical applications or for processes with critical gases. The bubble-tight leak-tested metal seat makes these valves perfectly suitable for sour gases and natural gas processing or nitrogen production plants.
The super-finished machining of the internal parts of the monoflange, such as spindle and spindle tip, allows a very smooth and precise operation, even at high pressures, and avoids leaks or seizure of the valve. The OS&Y bonnet has been specifically developed in accordance with the highest international standards for the direct mounting of IVM monoflanges on pipelines or vessels.
WIKA offers the professional assembly of different instruments and valves into ready-to-install hook-up solutions.
Specifications of this product
Design ¦ ASME B16.5, pipe flanges and flange fittings ¦ ASME B16.34, valves - flanged, threaded and welding end ¦ ASME B1.20.1, pipe threads, general purpose (inch) ¦ ASME B31.1, power piping ¦ ASME B31.3, process piping ¦ ISO 17292, metal ball valves for petroleum, petrochemical and allied industries ¦ MSS SP-99, valves for measuring instruments
Tests ¦ API 598, valve inspection and testing ¦ BS EN ISO 10497, type testing in accordance with fire safety requirements ¦ ISO 5208, pressure testing of metallic valves with leakage rate A ¦ MSS SP-61, pressure testing of valves ¦ DIN EN 12266-1, pressure tests, test procedures and acceptance criteria for industrial valvesMaterial requirements ¦ NACE MR0175 / ISO 15156, use in H2S-containing environments in oil and gas production ¦ NORSOK M-630, specificaiton for use in pipelines (Norway) ¦ Block (shut off) - 1 x bonnet for shutting off the process ¦ Block and bleed (shut off and vent) - 1 x bonnet for shutting off the process - 1 x standard bonnet for venting ¦ Double block and bleed (2 x shut off and 1 x vent) - 2 x bonnets for shutting off the process - 1 x standard bonnet for venting Version ¦ Process version (with OS&Y bonnet on the process side) ¦ Instrument version (with standard bonnet on the process side) Process connection ¦ Flange ½" … 2" / class 150 … class 2500, following ASME B16.5 ¦ Flange DN 15 … DN 25 / PN 16 … PN 100, following EN 1092-1 Surface roughness Ra of the sealing face Following ASME B16.5 ¦ RF: 3.2 ... 6.3 µm [125 ... 250 µin] (spiral surface) ¦ RJ: 1.6 µm [63 µin] Following EN 1092-1 ¦ Form B1: 3.2 ... 6.3 µm [125 ... 250 µin] ¦ Form B2: 0.8 ... 3.2 µm [32 ... 125 µin] Instrument connection ¦ 1 x ½" NPT female, axial ¦ 1 x ½" NPT female, swivel adapter, axial ¦ 2 x ½" NPT female, 1 x radial and 1 x axial 1) ¦ 2 x ½" NPT female, 1 x swivel adapter, radial and 1 x axial 1) ¦ Connecting flange Vent connection ¦ Without ¦ ¼ NPT female, plug screw is included in delivery, though not pre-fitted. ¦ ½ NPT female, plug screw is included in delivery, though not pre-fitted.
Flange ¦ Stainless steel 316L (standard) ¦ Duplex F51 (1.4462) ¦ Super Duplex F55 (1.4501) ¦ Hastelloy C276 (2.4819) ¦ Monel 400 (2.4360) ¦ Steel A350 LF2 (1.0566), galvanised carbon steel per ISO/EN 2081 1) 2) Monoflange Spindle tip Sealing packing ¦ PTFE ¦ Graphite ¦ RTFE Reinforced PTFE, material for optional certificate „Emission protection in accordance with TA-Luft (VDI 2440) and ISO-15848-1
WIKA Australia | Pressure, Temp, Level, Flow & Force measurement
Over the past 74 years WIKA Alexander Wiegand SE & Co. KG has built a reputation for innovation and quality in the manufacture and service of pressure and temperature measuring instruments. On the basis ...