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- PN 250 Swing Check Valve
PN 250 Swing Check Valve
- Product Name:PN 250 Swing Check Valve
- Unit Price:
- Design Standard:BS1868 /GB/T12236/ API600
- FTF Dimension:DIN EN588-1:1995
- Flange Connection:DIN EN1092-1:2002
- Inspection and Test:DIN EN12266:2003
- Delivery Time:15-30 days
- Email: info@tjlindustry.com
- Tel: +86-22-28219562
- Fax: +86-22-28219554 ext.8888
Product Usage
Swing check valves are used in pipes under pressures between PN1.6-42.0MPa, working tempertures between -46℃~570℃，they are used in industries include oil, chemistry, pharmaceutical, fertilizer, and power generation to prevent the backflow of the media.
Product Features
Rational structure, reliable sealing, excellent performance, pretty appearance;
Co-radix alloy welded sealing surface, anti-wearing, erosion-proof abrasion-proof and longer use life;
Inside-set bolt-bearing structure reduces leakage and reliable used
When pressures≥16.0MPa the valve belly, self-tighening structure offers a tighter sealing for a higher medium pressure;
Different parts materials and different sizes for flange, butt-welding are available for sensiable combination according to different working facts and customers' requirements.
Main Performance Specifications
| Design standard | GB/T 12236 | ||||||
Pressure-temperature rating | GB/T 12224 | ||||||
| Face-to-face | GB/T 12221 、GB/T 15188.1 | ||||||
| Flange ends | GB/T 9113、JB/T 79、EN1092、ASME B16.5/B16.47 | ||||||
| Buttwelding ends | GB/T 12224 | ||||||
| Inspection&test | JB/T 9092、GB/T 13927、API598 | ||||||
| Test pressure | Nominal pressure | PN1.6 | PN2.5 | PN4.0 | PN6.4 | PN10.0 | PN16.0 |
| Shell test | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 | |
| High pressure seal test | 1.8 | 2.8 | 4.4 | 7.1 | 11.0 | 17.6 | |
| Low pressure seal test | 0.6 | ||||||
Main Part Materials
| Part name | Carbon steel | Stainless steel | Alloy steel | Low Temperature steel |
| Body | WCB | CF8 | WC6 | LCB |
| Seat | 25＃ | 0Cr18Ni9(304) | 12Cr1MoVA | 0Cr18Ni9(304) |
| Disc | WCB | CF8 | WC6 | LCB |
| Hinge | 20Cr13 | 304 | 20Cr13 | LCB |
| Pin | 1Cr13 | 0Cr18Ni9(304) | 0Cr18Ni9(304) | 0Cr18Ni9(304) |
| Bearing Bracket | WCB | CF8 | WC6 | LCB |
| Gasket | Flexible graphite+SS304 | Flexible graphite+SS304 | Flexible graphite+SS304 | Flexible graphite+SS304 |
| Bonnet | WCB | CF8 | WC6 | LCB |
| Stud | 35CrMoA | 0Cr18Ni9(304)/B8 | B16/25Cr2MoVA | 35CrMoA/B7 |
| Nut | 45＃ | 0Cr18Ni9(304)/8 | 7/35CrMoA | 45/2H |
Send your message to us
TJL INDUSTRY GROUP CO., LIMITED
Tel: 0086-22-28219562
Fax: 0086-22-28219554 ext.8888
Mobile:15022393555
Email: sales@tjlindustry.com
Address: 1-711,XiangNian Plaza, Dongjiang and Neijiang Road Cross, Hexi District, Tianjin China
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