The monoblock has been designed to meet the requirements of the process industry, especially for natural gas and aggressive fluid applications. The compact design integrates one or two shut-off valves to separate the process from the instrument.
Oil and gas industry, chemical and petrochemical industries, power plants
For gaseous and liquid aggressive media that are highly viscous or crystallising, also in aggressive environments
Direct connection of pressure measuring instruments to flanged pipelines or vessels without interface valves
Shut-off valve with draining or venting function as tapping point for instrumentation
Attached to level indicators or differential pressure instruments in level measurement
Features of this product
Increased safety with metal enclosed seats and double body seal
High-quality machining guarantees smooth operation with low torque and low wear
Leak-tested tightness in accordance with BS6755 / ISO 5208 leakage rate A
Customisable arrangement with ball and needle valves
Customer-specific combination of valves and instruments (hook-up) on request
Why Choose This Product
The modular monoblock design allows using an arrangement of ball valves and/or needle valves.
For applications with liquid or dirty media, ball valves are recommended due to easy cleaning of the straight-through internal bore.
The valve seat design and the redundant seals of the valve body ensure high durability and tightness. In case the soft valve seat fails, the metal-to-metal seat will ensure that the valve can still be operated and set to a safe position.
The tightness is guaranteed for the connection between the process and the measuring instrument and towards the atmosphere.
The super-finished machining of the internal parts allows a very smooth and precise operation, even at high pressures and after long periods without valve operation.
The surface finish is also minimising corrosion with aggressive media and makes it easier to clean.
Specifications of this product
Blow-out-safe valve stem
Self-relieving valve seats
Non-rotating spindle tip
Blow-out-safe spindle tip
Back seat design
EEMUA publication 182, specification for integral block-and-bleed valve manifolds
ASME B16.34, valves - flanged, threaded and welding end
ASME BPVC section VIII, rules for construction of pressure vessels division 1
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
ASME B16.5, pipe flanges and flange fittings
ASME B1.20.1, pipe threads, general purpose (inch)
NACE MR0175 / ISO 15156, use in H2S-containing environments in oil and gas production
NORSOK M-630, specification for use in pipelines (Norway)
API 598, valve inspection and testing
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 valves
API607/API6FA/ISO 10497 fire test for valves
Flange ½" … 2" / class 150 … class 2500, following ASME B16.5
Flange DN 15 … DN 25 / PN 16 … PN 100, following EN 1092-1
WIKA Australia | Pressure, Temp, Level, Flow & Force measurement
Over the past 60 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 ...