Reflux valve
- TU U 29.1- 21225223-007:2009
- Designation: STKO Kh1.Kh2 – Du/Рu – Kh3
- Du diameter: 15, 20, 25, 32, 40, 50, 65, 80, 100, 150
- Рu pressure: 2.5 MPa; 4.0 MPa; 6.3 MPa; 10.0 MPa; 16.0 MPa; 20.0 MPa; 35.0 MPa; 40.0 MPa; 63.0 MPa; 70.0 MPa; 100.0 MPa; 105.0 MPa
- Connection type (Kh1): flanged (1), for welding (2), threaded (3)
- Gate type (Kh 2): lift (1), wicket (2), retaining shut-off (3)
- Climate version (Kh3): M1, MCL1, CL1, Т1
- Working medium: liquid or gaseous, neutral to the cock materials
- Case details material: st.20; 09G2S; 40Kh; 30KhMA; nzh
- Working medium temperature: -60 to +200
- Working medium flow direction: one-way
- Ambient conditions: temperature: -30 to +50
- Safety requirement under GOST 12.1-004, GOST 12.2-003, GOST 12.2.063, GOST 12.3.002
- Fitting mounting position: horizontal, vertical
- Fitting purpose: for automatic prevention from working medium reverse flow
- Operating conditions under GOST 15150
- Full average service life – not less than 10 years
- Average trouble-free life – not less than 12000 hours
- The valve belongs to the class of repairable and restorable articles
- Tightness in the gate: class А under GOST 9544-93
- Certificate of conformity No. UA 1.069.0140442-12
- UGC FEA code: 29.13.13
Description