All valves and manifolds as well as our Double Block & Bleed Piping Ball Valves are suitable for up to 100% hydrogen use. In other words, our instrumentation valves and process valves can also be used safely in natural gas applications with, for example, a 20% hydrogen blending. This feature is of particular interest to natural gas plant operators and gas network operators who want to convert their natural gas pipelines for hydrogen.
 Datasheet |
- High-quality machining guarantees smooth operation with low torque and low wear
- Leak-tested tightness in accordance with BS6755 / ISO 5208 leakage rate A
- Large selection of materials and configurations available
- Customer-specific combination of valves and instruments (hook-up) on request
 Datasheet |
![WIKA Model HPAC High-pressure connection adapters and couplings Nominal pressure of 15,000 ... 60,000 psi [1,034 ... 4,136 bar]](https://www.ics-schneider.de/wp-content/uploads/2023/02/fitting-1-350x350.jpg?x68983)
- One-piece design
- Laser marked for identification
- Large selection of materials and configurations available
- Customer-specific combination of adapters, fittings, valves and measuring instruments (instrument hook-up) on request
| Datasheet |
- Low-wear design due to non-rotating spindle tip in the bonnet
- Low torque and smooth operation of valve handle even at high pressure
- Enhanced safety due to blow-out proof bonnet design
- Customer-specific combination of valves and instruments (hook-up) on request
- Standardised centre distances of 37 mm and 54 mm, suitable for WIKA differential pressure gauges and commonly used process transmitters
| Datasheet |
| User Manual |
- Form A with swivelling nut to DIN 16283
- Form B union with tall nipple per DIN 16284 and shaft to fit surface mounting bracket
- Connection: G 1/2 or M20 x 1,5
- Material : Brass, Steel, CrNi-Steel
- PN in bar : 250, 400
- Temperaturbereich: -20...+200°C
 Datasheet
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- Form A with swivelling nut to DIN 16283
- Form B union with tall nipple per DIN 16284 and shaft to fit surface mounting bracket
- Connection: G 1/2 or M20 x 1,5
- Material : Brass, Steel, CrNi-Steel
- PN in bar : 250, 400
- Temperature range: -20...+200°C
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Datasheet
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- Form A with swivelling nut to DIN 16 283
- Form B union with tall nipple per DIN 16284 and shaft to fit surface mounting bracket
- Connection: G 1/2 or M20 x 1,5
- Material : Brass, Steel, CrNi steel
- PN in bar : 250, 400
- Temperature range: -20...+200°C
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Datasheet
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- Bar stock body, machined
- Direct or remote mounting
- Needle tip free rotating cone
- Material stainless steel 316
- Metric Range Max: 400 bar
- Imperial Range Max: 6.000 psi
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Datasheet
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- Bar stock body, machined
- Direct or remote mounting
- Needle tip free rotating cone
- Material stainless steel 316
- Metric Range Max: 420 bar
- Imperial Range Max: 6.000 psi
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Datasheet
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- Bar stock body, machined
- Direct mounting, optional separate surface mounting brackets
- Needle tip free rotating cone
- Material stainless steel 316
- Metric Range Max: 420 bar
- Imperial Range Max: 6.000 psi
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Datasheet
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- Sleeve: G 1/2, G 1/4
- Male thread: G 1/2, G 1/4
- PN in bar : 16, 25
- Material: Brass
- DIN : 16 260, 16 262
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Datasheet
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- Bar stock body, machined
- Direct mounting, optional separate surface mounting brackets
- Needle tip free rotating cone
- Material stainless steel 316
- Metric Range Max: 420 bar
- Imperial Range Max: 6.000 psi
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Datasheet
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Shut-off Valves & Cocks for Pressure Gauges – isolate, vent, test safely
Shut-off valves and gauge cocks are the robust interface between process and display. They enable safe isolation, venting/draining, and depressurized removal of pressure gauges, digital gauges, and pressure switches—without shutting the plant down. Available in brass, 316/316L stainless steel, and special alloys with G and NPT threads, optionally with test/vent ports, check function, or anti-tamper features.
ICS Schneider Messtechnik supports material selection, sealing concepts, and pressure/temperature sizing, and can supply pre-assembled sets with bracket, gaskets, and certificates—delivering durable, tight, and audit-ready measuring points.
FAQ on Shut-off Valves & Cocks for Pressure Gauges
Answers on selection, installation, tightness, pressure/temperature limits, hygienic/Ex use, maintenance, and practical tips.
Why do I need a shut-off valve on a gauge?
For safe isolation from the process when replacing/calibrating, for venting/draining, and as protection against pressure shocks by opening slowly.
Valve or cock—what’s the difference?
| Design | Advantage | Typical use |
|---|---|---|
| Needle valve | Fine metering, high tightness | Process industry, higher pressures |
| Cock (ball/gauge cock) | Fast operation, compact | HVAC, utilities, service points |
Which connections are common?
| Thread | Standard | Note |
|---|---|---|
| G 1/4, G 1/2 | ISO 228 (BSPP) | Flat or metal sealing possible |
| ¼" NPT, ½" NPT | ASME B1.20.1 | Taper thread—use PTFE tape/paste |
Which material fits my medium?
Brass for neutral media (air/water/oil), 316/316L for chemical/process duty, Hastelloy®/Monel® for aggressive media. Choose gasket materials accordingly (FKM/EPDM/PTFE/FFKM).
What pressure and temperature ranges are typical?
Guidance: up to 250–420 bar (stainless) and −20…+200 °C depending on seat/seal. Always check the specific datasheet.
How do I prevent leaks on NPT joints?
- Use clean, undamaged threads.
- Apply PTFE tape (with thread direction) or approved paste.
- Torque per manufacturer; avoid side loads.
What is an integrated vent/drain port for?
For pressure relief before removal and for air bleeding to improve accuracy. Route discharge safely to a container or vent line.
Can I replace gauges without shutting the plant?
Yes: isolate the process, depressurize/vent the instrument side, swap the device, leak-test, then reopen slowly.
Any solutions for vibration/pressure surges?
Yes: combine with a snubber/restrictor screw or use a glycerin-filled gauge. Needle valves allow gentle pressurization.
What is the best mounting orientation?
Ensure easy access, mount stress-free, support the instrument with a bracket if needed, and don’t let pipe weight hang on the valve.
Are shut-off valves suitable for hygienic applications?
With flush diaphragm seals, low-dead-space fittings (Tri-Clamp/Varivent®), and suitable gaskets (FDA/EU 1935/2004)—yes. Ensure full cleanability.
How do I document the measuring point properly?
Record instrument ID, valve type, connection, materials, seal, location, pressure/temperature rating, and test/calibration data.
Which test and certificate options are available?
Pressure/leak tests, material certificates EN 10204 3.1, and optionally TA-Luft/ISO 15848. Test reports available on request.
What should I consider in hazardous (Ex) areas?
Ensure bonding/grounding, use anti-static components, avoid ignition sources. For NAMUR signals use suitable barriers/isolators.
How often should valves be maintained?
Periodically inspect for leaks/corrosion, avoid forcing stiff operation, replace seals as needed; function-test within maintenance intervals.
Do you supply pre-assembled sets?
Yes—on request with shut-off valve/cock, instrument, bracket, gaskets, tagging, and pressure/leak test—delivered ready to install.
Selection tips at a glance
- Clarify medium & T/P → choose material/seal.
- Operation: quick (cock) vs. fine (needle valve).
- Service: add vent/drain and test port.
- Damping for pulsation where needed.
Does ICS Schneider support sizing & installation?
Yes. We recommend the right valve type, define connections/seals, supply certified components, and support installation, leak testing, and—if required—IIoT integration.