Cast steel non-return valves with a hinged disc
Our swing check valve supply serves wholesale industrial piping and project valve schedules. Forward flow lifts the hinged disc; reverse flow returns it toward the seat. The selected body, disc arrangement, connection and installation orientation stay together on each quoted valve item.
| Valve form | Cast-body swing check valve with hinged disc |
|---|---|
| Body material | ASTM A216 WCB; separately identified stainless selection |
| Closure function | Automatic non-return function under the selected flow conditions |
| End connection | Selected flanged or butt-weld ends |
| Catalog class families | Class 150 and Class 300 selected construction |
| Acceptance basis | Ordered model, orientation, pressure-temperature conditions and test specification |
Compare the valve’s connection-to-connection length with the available spool gap.
| NPS (in.) | DN | RF/BW length L (mm) |
|---|---|---|
| 2 | 50 | 203 |
| 2-1/2 | 65 | 216 |
| 3 | 80 | 241 |
| 4 | 100 | 292 |
| 6 | 150 | 356 |
| 8 | 200 | 495 |
| 10 | 250 | 622 |
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Selected short-pattern RF/BW lengths from our cast check-valve catalog page 6, cross-checked against BFE’s explicit Class 150 swing-check reference. The selected offer returns the actual face spacing, connection and complete valve drawing.
Forward flow opens the selected swing disc and a reversal drives it toward the seat. Its mass, hinge geometry and operating flow establish the closure response of that particular model.
The installation drawing identifies the permitted pipe orientation and hinge position. A vertical arrangement retains the accepted flow direction and the actual model’s operating requirements.
The pressure-temperature rating belongs to the selected material and class. The required shell and seat-leakage tests state their conditions and acceptance separately from the normal service duty.
The selected disc swing and adjacent component bore are reviewed together. Reducers, projecting linings or nearby equipment remain clear of the required opening envelope.
The access space above the cover accommodates the selected inspection and repair procedure. Cover fastening access and the disc/hinge extraction path are retained in the installed arrangement.
A pump trip or rapidly changing flow requires the system’s closure and transient assessment. The proposed check-valve type is accepted for that duty with its operating data and the piping design.
The valve selection uses the expected flow range, reverse-pressure conditions and permitted orientation. A pump schedule keeps the chosen check valve and adjoining isolation equipment as separate items.
A replacement retains the existing face gap and flow direction while reviewing the required closure behavior. The proposed model’s body and access envelope are compared with the installed station.
The prescribed check confirms free disc movement and alignment with the seat. The actual hinge and pin arrangement remains identified with the valve model.
A required leakage record identifies its medium and differential-pressure condition. Its acceptance basis follows the purchase specification for the selected seat construction.
Connection length, flange or weld-end detail and the flow-direction mark are checked against the selected drawing. The packed valve retains the same material and class reference.
Crate blocking supports the body while protecting the cover and prepared ends. The prescribed shipping position retains the disc and any required internal restraint for that model.
A spare disc, hinge, pin or cover gasket retains its selected valve reference. Its geometry and material remain linked to the original assembly.
Our quotation identifies the swing-check body, ends and service basis, followed by required records and separately ordered spares. Packing and shipment terms apply to that complete item list.
A vertical installation uses a model accepted for the specified flow direction and hinge arrangement. The selected instructions and operating duty establish that configuration before the valve is added to the schedule.
The normal and minimum forward flows, fluid properties and expected fluctuations identify the disc operating condition. Those inputs are reviewed against the selected valve’s opening behavior and suitable size/type.
Closure behavior is a selected-model characteristic. A duty requiring controlled or rapid closure retains the proposed mechanism and its performance data in the system’s transient assessment.
The check valve provides its automatic non-return function. Maintenance isolation is retained as a separate scheduled valve and operating procedure for the station.
The ordered test standard and seat construction establish the leakage acceptance. The record identifies test medium, differential pressure and result so the selected valve can be checked against that same requirement.
The valve manufacturer, model, size and internal-part reference identify the spare. The required material and any accepted design revision stay with the original disc/hinge assembly.
Other items in the same product category.
Send sizes, end connections, body/seat requirements and the installation orientation. Add the normal and minimum flow, pressure/temperature conditions, required tests and quantities. We return the selected model drawing and an itemized valve offer with shipment terms.