Fire Protection Butterfly Valve
Lever-Operated Wafer Butterfly Valve
A manual lever-operated butterfly valve with a compact wafer body, sandwiched between two flanges in fire protection piping. A visible lever with a position-locking plate provides simple open/close control.
Face-to-face dimension, flange drilling and marking are confirmed against the approved drawing, sample or order schedule before production.
Technical overview
Confirmed construction and operating data
Critical product data is presented in HTML for clear international sourcing. The valve is produced to a national standard; no foreign approval is claimed on this page.
Series specifications
- Product type
- Lever-Operated Wafer Butterfly Valve
- Available sizes
- DN50 / 2 in to DN200 / 8 in
- Connection
- Wafer (sandwiched between two flanges)
- Working pressure
- PN16 / 1.6 MPa / 16 bar
- Body & disc
- Ductile iron QT450-10
- Seat
- EPDM
- Stem
- Stainless steel
- Lever & position plate
- Carbon steel lever; galvanized 45# steel locking plate
- Medium
- Water
- Working temperature
- -10 to 80 °C
- Standard
- GB 5135.6-2018 (national fire butterfly valve standard); GB/T 17241.6; GB/T 12221
- Installation
- Wafer between two flanges; horizontal or vertical piping
Available models
Configurations for quotation
International size and connection are the primary selection fields. ZSDF7-Q codes are retained only as factory references.
| International configuration | Nominal size | Working pressure | Factory reference |
|---|---|---|---|
| Lever-Operated Wafer Butterfly Valve | DN50 / 2 in | PN16 | ZSDF7-Q-50-16-S |
| Lever-Operated Wafer Butterfly Valve | DN65 / 2½ in | PN16 | ZSDF7-Q-65-16-S |
| Lever-Operated Wafer Butterfly Valve | DN80 / 3 in | PN16 | ZSDF7-Q-80-16-S |
| Lever-Operated Wafer Butterfly Valve | DN100 / 4 in | PN16 | ZSDF7-Q-100-16-S |
| Lever-Operated Wafer Butterfly Valve | DN125 / 5 in | PN16 | ZSDF7-Q-125-16-S |
| Lever-Operated Wafer Butterfly Valve | DN150 / 6 in | PN16 | ZSDF7-Q-150-16-S |
| Lever-Operated Wafer Butterfly Valve | DN200 / 8 in | PN16 | ZSDF7-Q-200-16-W |
OEM / ODM capability
Configured to the approved drawing or sample
Manufacturing options are confirmed against the buyer's technical schedule. Connection-standard names describe available machining patterns and do not imply third-party product approval.
Send your butterfly valve schedule
Include size, flange drilling requirement, quantity and destination country.
