Deluge-System Water Control Valve
Diaphragm Deluge Valve
A diaphragm-actuated water control valve for open deluge sprinkler systems, offered with flanged or grooved connections. In the standby state the valve holds supply water back; on fire detection or manual release it opens and floods the deluge piping so open sprinklers or nozzles discharge over the protected area.
Flange drilling, groove profile and trim arrangement are confirmed against the approved drawing, sample or order schedule before production.
Real product configurations
Flanged and grooved connection views
Both photographs show complete deluge valve assemblies.
Technical overview
Confirmed construction and operating data
Critical product data is presented in HTML for clear international sourcing. No foreign approval is claimed on this page.
Series specifications
- Product type
- Diaphragm Deluge Valve (deluge-system water control valve)
- Available sizes
- DN50 / 2 in to DN250 / 10 in
- Connection options
- Flanged or grooved
- Maximum working pressure
- 1.6 MPa / 16 bar / approx. 232 psi
- Supply pressure range
- 0.14–1.6 MPa / 1.4–16 bar
- Minimum actuation pressure
- 0.035 MPa / 0.35 bar
- Alarm port pressure
- ≥ 0.05 MPa / 0.5 bar
- Alarm response
- ≤ 15 s (DN ≤ 150) · ≤ 60 s (DN ≥ 200)
- Valve body & cover
- Ductile iron QT450-10
- Diaphragm
- Nylon-reinforced nitrile rubber (NBR)
- O-rings
- Nitrile rubber (NBR / Buna-N)
- Disc, seat, bushings & pressure plates
- Bronze
- Spring & shaft
- 304 stainless steel
- Coating
- Internal and external epoxy coating (red)
- Packaging
- Wooden case
Complete supply scope
Alarm trim supplied with the main valve
The standard complete assembly includes the items below. Customer-specified accessory makes or trim arrangements can be reviewed before quotation.
Available models
Configurations for quotation
Select the DN size and flanged or grooved connection. Use the ZSFM model reference to identify the configuration; assembly height depends on the selected trim.
| International configuration | Nominal size | Maximum pressure | Reference height | Model |
|---|---|---|---|---|
| Flanged Diaphragm Deluge Valve | DN50 / 2 in | 1.6 MPa | 265 mm | ZSFM50 |
| Flanged Diaphragm Deluge Valve | DN65 / 2½ in | 1.6 MPa | 265 mm | ZSFM65 |
| Flanged Diaphragm Deluge Valve | DN80 / 3 in | 1.6 MPa | 325 mm | ZSFM80 |
| Flanged Diaphragm Deluge Valve | DN100 / 4 in | 1.6 MPa | 335 mm | ZSFM100 |
| Flanged Diaphragm Deluge Valve | DN125 / 5 in | 1.6 MPa | Available on request | ZSFM125 |
| Flanged Diaphragm Deluge Valve | DN150 / 6 in | 1.6 MPa | 415 mm | ZSFM150 |
| Flanged Diaphragm Deluge Valve | DN200 / 8 in | 1.6 MPa | 530–535 mm | ZSFM200 |
| Flanged Diaphragm Deluge Valve | DN250 / 10 in | 1.6 MPa | 615 mm | ZSFM250 |
| Grooved Diaphragm Deluge Valve | DN100 / 4 in | 1.6 MPa | 340 mm | ZSFM100(G) |
| Grooved Diaphragm Deluge Valve | DN150 / 6 in | 1.6 MPa | 425 mm | ZSFM150(G) |
| Grooved Diaphragm Deluge Valve | DN200 / 8 in | 1.6 MPa | Available on request | ZSFM200(G) |
OEM / ODM capability
Configured to the approved drawing or sample
Manufacturing and assembly options are confirmed against the buyer's technical schedule. Connection-standard names describe available machining patterns and do not imply third-party product approval.
Product photographs
Compare the construction and visible markings. Open a photograph to enlarge it; confirm the required configuration with the quotation.
Send your deluge valve schedule
Start with size, flanged or grooved connection, and quantity. Add connection dimensions, trim requirements and destination when available.