This valve has a stable sealing property due to its unique sheet shape and material, and can be closed by both forward flow and reverse flow with a RPTFE seat ring to accommodate a variety of fluids.
Double eccentric Butterfly valves (HB series)
Specification
| Valve nominal size | SHB | 50A～300A |
|---|---|---|
| UHB | 40A～300A | |
| Applicable flange | 5UHB | JIS 5K |
| 10SHB・10UHB | JIS 10K | |
| 16SHB・20UHB | JIS16K, JIS20K | |
| 150SHB・150UHB | ASME Class 150 | |
| Maximum allowable pressure | 5UHB | 0.7MPa |
| 10SHB・10UHB | 1.4MPa | |
| 16SHB・20UHB | 2.0MPa | |
| 150SHB | 1.72MPa | |
| 160SHB | 1.9MPa | |
| Service temperature range | SHB | -10～+200℃ |
| UHB | -29～+200℃ | |
| Face-to-face dimensions | JIS B 2002 46 series | |
| Flow direction | Bidirectional flow* | |
| Applicable gaskets (commercially available gaskets) |
Joint seats (Minimum thickness 1.5 mm) Spiral wound gaskets / Envelope gaskets |
|
| Automatic valves | Contact KITZ Corporation for details. | |
*Recommended flow direction: Flow Pressure from the retainer side
Standard Materials
| Parts | Material | |
|---|---|---|
| SHB | UHB | |
| Body | FCD450-10 | SUS13A/A351 Gr.CF8 |
| Stem | SUS420J2 | SUS304N2 |
| Disc | SUS13A+Cr plated | |
| Gland | SCS13A | |
| Seat ring | RPTFE(Carbon fiber-filled PTFE) | |
| Seat retainer | S45C | SUS304 |
| Stem bearing | PTFE(Metal backed) | |
| Gland packing | PTFE | |
| Gasket | PTFE | |
Feature
RPTFE seat rings for various types of fluids
Chemical-resistant RPTFE is adopted as seat material, so that it can be used for fluids that cannot be handled with rubber seats. (See the table for “Corrosion resistance level of materials of disc and seat against fluid” on page 4 of the catalog.)
Double eccentric structure for stable sealing performance
The double eccentric structure minimizes the contact between the disc and the seat during operation and provides stable sealing performance with less wear of the seats over a long period of time. (Fig.1)
Easy retightening of packing
Retightening of packing is possible without removing the operatin device. (Fig. 2)
Original seat configuration for high durability (patented)
Bidirectional frow
Applicable to both of the direct and reverse flow control, however, flow pressure from the retainer side is recommended.
Applicable to commercially-available pipe gaskets
Joint seats (minimum thickness 1.5mm), spiral wound gaskets and PTFE envelope gaskets conforming to the applicable standards can be used.
Top flange dimensions according to ISO 5211
Registering E-mail Magazines
We will send support information, new product information, and application information for our users.
Contact us
For inquiries about product technology, product purchases,
catalogs, and quality