□ Introduction
Check valve applied to refrigeration systems, air conditioning and cooling systems;
Perfect seal connection at valve seat area;
Brazing connection and Thread connection.
□ Features
Flow at one way direction;
Damping device inside, can be applied in pressurized piping system and impulse piping systems;
Prevent refrigerants backflow from high temperature evaporator to low temperature evaporator;
Apply to refrigerating and cooling systems parallel to compressor;
□ Technical Parameter
Refrigerant | HCFC 、 HFC |
Media Temperature | -40℃~+120℃ |
Max. Opening | 3.0MPa |
Max. Allowable Pressure | 4.5MPa |
□ Specification
PN | Type | specification | L.D. | Min open pressure difference | Kv Value
| |
Flare | Welded | (mm) | MPa | (m3/h) | ||
SSP-H006/6 | straight
| 1/4 SAE | 1/4 ODF | 4.8 | 0.03 | 0.56 |
SSP-H006/10 | 3/8 SAE | 3/8 ODF | 8 | 0.03 | 1.43 | |
SSP-H006/12 | 1/2 SAE | 1/2 ODF | 10 | 0.03 | 2.05 | |
SSP-H006/16 | 5/8 SAE | 5/8 ODF | 13 | 0.03 | 3.60 | |
SSP-H006/19 | 3/4 SAE | 3/4 ODF | 16 | 0.03 | 5.50 | |
SSP-H006/22 | 90° angle | / | 7/8 ODF | 19 | 0.03 | 8.50 |
SSP-H006/28 | / | 1-1/8 ODF | 25 | 0.03 | 19.0 | |
SSP-H006/35 | / | 1-3/8 ODF | 32 | 0.03 | 29.0 | |
KV Value refers to water flow-rate with its density at 1 ton per cubic meter with pressure difference at 100Kpa while run through check valve. The unit is cubic meter per hour.
□ 外形尺寸 Dimension

PN | A | B | Hexagon S | Thread M | L | L1 | L2 | øD | ød |
SSP-H006/6 | 52.5 | 14 | 17 | 7/16-20UNF | 86 | 7 | 29 | 6.5 | 6 |
SSP-H006/10 | 62.5 | 16 | 22 | 5/8-18UNF | 106 | 8 | 36 | 10.1 | 10 |
SSP-H006/12 | 68.5 | 18 | 24 | 3/4-16UNF | 118 | 10 | 39 | 12.9 | 12 |
SSP-H006/16 | 79.5 | 21 | 27 | 7/8-14UNF | 140 | 14 | 46 | 16.1 | 16 |
SSP-H006/19 | 90.5 | 24 | 32 | 1-1/16-14UNS | 152 | 16 | 49 | 19.2 | 19 |

PN | A | B | Hexagon S | Thread M | L | L1 | L2 | øD | ød |
SSP-H006/6 | 52.5 | 14 | 17 | 7/16-20UNF | 86 | 7 | 29 | 6.5 | 6 |
SSP-H006/10 | 62.5 | 16 | 22 | 5/8-18UNF | 106 | 8 | 36 | 10.1 | 10 |
SSP-H006/12 | 68.5 | 18 | 24 | 3/4-16UNF | 118 | 10 | 39 | 12.9 | 12 |
SSP-H006/16 | 79.5 | 21 | 27 | 7/8-14UNF | 140 | 14 | 46 | 16.1 | 16 |
SSP-H006/19 | 90.5 | 24 | 32 | 1-1/16-14UNS | 152 | 16 | 49 | 19.2 | 19 |