No | Item | Material | Characteristic |
1 | Body | HDPE, MDPE | Same with pe pipe |
2 | End | HDPE, MDPE | Same with pe pipe |
3 | Ball | Polypropylene(PP) | High strength and good at heat resistance |
4 | Ball Seat(Seat Ring) | NBR(Rubber) | Good at tightness |
5 | Retainer | Polypropylene(PP) | Ball seat support with high strength and good heat resistance |
6 | Stem | Acetal | Good durability and ruggedness |
7 | Stem Seat ("O"Ring) | NBR(Rubber) | Good tightness by multiple seat type |
8 | Handle Seat (Adapter "O" Ring) | NBR(Rubber) | Prevention of water and foreign matters from outside |
9 | Handle(Adapter) | Polypropylene(PP) | Square type for convenient operation |
10 | Purge Connector | HDPE, MDPE | For purge line installation |
| Category | Specification | Category | Specification |
| USE | Underground gas &water pipe line | Construction method | Butt-fusion or Electrofusion |
| Working Pressure | PE 100 less than Gas 1.0MPa / Water 1.6MPa | Purge Type | No purge, 1-purge, 2-purge |
| Material | High density polyethylene | Valve type | Lever type, Gear type |
| Production Standard | ISO 10933, EN 1555-4, EN 12201-4, | Color | Black |
| Using Temperature | –29ºC~38ºC | Internal flow change | Full port type(100% bore rate) |
| Type | Underground buried type | Stem type | Long sten, short stem |
Characteristic | Requirements | Test parameters | Test method | |
Parameter | Value | |||
Hydrostatic strength (20 °C, 100 h) | No failure during the test period of any test piece | Conditioning time Number of test pieces Type of test Circumferential (hoop) stress: PE 80 PE 100 Test period Test temperature | Shall conform to EN ISO 1167-1 3 Water-in-water 10,0 MPa 12,0 MPa 100 h 20 °C | EN ISO 1167-1 and EN ISO 1167-4 |
Hydrostatic strength (80 °C, 165 h) | No failure during the test period of any test piece | Conditioning time Number of test pieces Type of test Circumferential (hoop) stress: PE 80 PE 100 Test period Test temperature | Shall conform to EN ISO 1167-1 3 Water-in-water 4,5 MPa 5,4 MPa 165 h 80 °C | EN ISO 1167-1 and EN ISO 1167-4 |
Hydrostatic strength (80 °C, 1000 h) | No failure during the test period of any test piece | Conditioning time Number of test pieces Type of test Circumferential (hoop) stress: PE 80 PE 100 Test period Test temperature | Shall conform to EN ISO 1167-1 3 Water-in-water 4,0 MPa 5,0 MPa 1000 h 80 °C | EN ISO 1167-1 and EN ISO 1167-4 |
Leaktightness of seat and packing | No leakage during the test period | Test temperature Type fluid Number of test pieces Test pressure Duration of the test | 23 °C Air or nitrogen 1 25 mbar 1 h | Annex A |
Leaktightness of seat and packing | No leakage during the test period | Test temperature Type fluid Number of test pieces Test pressure Duration of the test | 23 °C Air or nitrogen 1 25 mbar 1 h | Annex A |
Pressure drop | Air flow rate (value indicated by the manufacturer) | Type of test Number of test pieces b Test pressure Pressure drop for dn ≤ 63mm dn > 63mm | Air 1 25 mbar 0,5 mbar 0,1 mbar | EN 12117 |
Operating torque | Torque range: - For dn ≤ 63 mm 5 Nm < M ≤ 35 Nm - For 63 mm < dn ≤ 125mm 10 Nm < M ≤ 70 Nm - For 125 mm < dn ≤ 315 mm 10 Nm < M ≤ 150 Nm | Test temperatures Number of test pieces | –20ºC and +23ºC and +40ºC 1 | EN 28233 |
Stop resistance | a) No failure at stops, and b) No leakage at seat and packing | Test temperature Number of test pieces b Torque | −20 °C and +40 °C 1 2 times the value of the maximum measured operating torque with minimum 150 Nm, during 15 s | a) EN 28233 followed by b) Annex A |
Impact loading resistance | No leakage and maximum value for operating torque (see examination of operating torque) | Position of test piece Drop height Mass of the striker Type of the striker Test temperature Number of test pieces | Vertical, see Figure 1 2 m 2,5 kg d 90 conforming to EN 744:1995 –20ºC 1 | EN 1705 |
Connection : after putting liner stick to handle, then put the handle to top adapter
Lever type operator
(Gear box type Ⅰ)
Gear box type operator(Gear box type Ⅰ)
(Gear box type Ⅱ)
Gear box type operator(Gear box type Ⅱ)
12, Eumdammal-gil, Jeonui-myeon, Sejong-si, Republic of Korea(zip code:30006)
TEL +82-44-863-2337 / FAX: +82-44-864-2336
E-mail: cosmoind@cosmoind.com
