Product category: High-pressure fluid fittings / High-pressure gas fittings
SKU: SCH-1041
SCHWERLL’s official listing identifies a nitrogen-side valve-block family with a one-way shut-off function. This page covers the published MKH/NKH family; it does not identify a single supplied manufacturer part number.
The official SCHWERLL listing publishes the following model and nominal-size combinations with their working pressures:
| Published model | Nominal size | Published working pressure |
|---|---|---|
| MKH | DN32 | 35 MPa |
| MKH | DN40 | 35 MPa |
| NKH | DN50 | 35 MPa |
The official listing separately mentions MKH-HP for high-pressure systems but gives no working-pressure value for that series. The 35 MPa values above apply to the identified MKH/NKH model-size combinations; they must not be assigned to MKH-HP or every supplied variant.
According to the official nitrogen-side listing, the default open state permits bidirectional nitrogen flow. In the closed state, the one-way function permits nitrogen flow only from the accumulator toward the nitrogen cylinder side. Confirm this operating direction and the selected configuration against the approved drawing and operating instructions.
The manufacturer describes this function as improving charging efficiency and reducing installation and commissioning time. This is an attributed family-level description; no quantified improvement or guaranteed time saving is stated here.
Before ordering or operation, confirm the selected model, nominal size, allowable pressure, flow direction, interface, materials, operating temperature, medium requirements and applicable inspection or conformity documents. Supply availability, delivery schedule and any requested configuration changes require written confirmation.
Source: SCHWERLL official one-way shut-off valve-block listing.
The official SCHWERLL listing describes a nitrogen-side valve-block family with a one-way shut-off function. This page covers the published MKH/NKH family and mentions MKH-HP; it does not identify a single supplied manufacturer part number.
The official listing identifies MKH in DN32 and DN40, and NKH in DN50. Confirm the selected model and nominal size in the approved supplied-configuration documentation.
The official listing gives 35 MPa working pressure for MKH DN32, MKH DN40 and NKH DN50. MKH-HP is mentioned for high-pressure systems without a published pressure value. Do not apply the 35 MPa values to MKH-HP or every configuration; confirm the supplied rating.
According to the official nitrogen-side listing, the default open state allows bidirectional nitrogen flow. In the closed state, nitrogen is allowed to flow only from the accumulator toward the nitrogen cylinder side. Confirm this operating direction against the supplied drawing and instructions.
Confirm the selected model, nominal size, allowable pressure, flow direction, interface, materials, operating temperature and medium requirements against approved documentation. Requested configuration changes and delivery dates require written confirmation.
Confirm the applicable inspection, testing and conformity documentation for the supplied model and agreed project scope. Manufacturer company credentials do not automatically establish certification for every valve block.
Contact SCHWERLL to confirm the supplied model and product-specific documentation.