China Marine Low Pressure Bronze Male Thread Check Valve GB/T1952-2015:
Marine Low Pressure Bronze Male Thread Check Valve GB/T1952-2015 is used to replace the old standard GB1952-80. It is the check valve used on the marine pipe system with sea water, fresh water, fuel oil, lubrication oil and steam.
Technical Specification:
Design Standard:GB/T1952-2015
Test Standard: GB/T600
Thread Standard: CB*821
Test Pressure: Body---2.4Mpa, Seal---1.76~0.3Mpa
Type A-Straight type
Type B-Angle type
| Nominal Pressure(Mpa) | Nominal Diameter(mm) | Applicable medium |
| 1.6 | 15-32 | sea water,fresh water, fuel oil,lubrication oil and steam not over 250℃ |
Main Parts & Material:
Body-Bronze
Bonnet-Bronze
Disc-Bronze
Main Size List(mm)：
| DN | Structure Dimension | Thickness | Thread Joint | lift range m≈ | Weight(kg) | |||||||||
| (mm) | L | H≈ | H1 | t | ||||||||||
| A | B | A | B | B | D | D1 | D2 | L0 | L1 | A | B | |||
| 15 | 95 | 46 | 100 | 91 | 40 | 3 | M30×2 | 27 | 19 | 19 | 3 | 5 | 0.51 | 0.44 |
| 20 | 110 | 49 | 112 | 100 | 44 | 3.5 | M36×2 | 33 | 24 | 19 | 3 | 6 | 0.75 | 0.73 |
| 25 | 125 | 53 | 128 | 113 | 48 | 3.5 | M42×2 | 39 | 29 | 20 | 3 | 7 | 1.05 | 1 |
| 32 | 145 | 58 | 136 | 121 | 56 | 4 | M48×2 | 45 | 36 | 20 | 3 | 9 | 1.32 | 1.27 |