HAMMERLESS CHECK VALVE

Transcription

1 HAMMERLESS CHECK VALVE - With the valve opened when the pump starts, the fluid flow in the body allows for low pressure loss due to ventury effect, maintaining stable flow. - Thanks to the simple structure, it has no failure factors and can be repaired easily. - In the event of back flow caused by the stop of the pump, the spring mounted outside the system quickly closes the pump. - Using bypass valve, it can drain water in the exhaust duct and feed charging water in the vacuum condition of - pump suction. Nom. Size L H B Weight (kg) 50(2") (21/2") (3") (4") (5") (6") (8") (10") (12") (14") (16") (20") B; to the end of the handle from the center of the body (until the development) Nom. Size L H B Weight(kg) 50(2") (21/2") (3") (4") (5") (6") (8") (10") (12") (14") (16") (20") B; to the end of the handle from the center of the body (until the development) Model No. HMC-1 HMC-2 Nominal Diameter 65A(21/2") - 250A(10") Fluid Water Pressure Max. 1.0MPa Max. 2.0MPa TEMP 5-60 Connection Method KS 10K RF Flange KS 20K RF Flange Body GC200 SCPH2 Material Sheet BC6 Disc PP, EPDM Dielectric Strength 1.5 MPa 3.0 MPa Install. Direction Horizontal & vertical *Models of 300A(12") or higher are designed for boiler making welding. Open the valve by turning the handle maximally to the left. Shut the handle to the right and lift the disc to drain. At normal conditions Draining the bypass.

2 OMEGA TYPE STRAINER - Direction of the fluid flow is linear and the screen is partially dispositioned toward the body of the screen, making space at the outlet and minimizing pressure loss. - The screen is Ω-shaped, making foreign substances accumulated at the center of the screen and the fluid pass through the bypass on both sides with less pressure loss. - The screen is in the top down fashion and easily assembled and dissembled to remove foreign substances, with higher maintenance efficiency. - Top cover may be made of sight glass to meet requirements of customers. Model No. OMS-1 OMS-2 Nominal Diameter 65A(21/2") - 250A(10") Fluid Water & Hot Water Pressure Max. 1.0MPa Max. 2.0MPa TEMP 5 ~ 80 Connection Method KS 10K RF Flange KS 20K RF Flange Body GC200 SCPH2 Material Cover GC200 SCPH2 Screen Stainless Steel 304 Dielectric Strength 1.5 MPa 3.0 MPa Coating Standard; in and outside epoxy powder coating Screen Standard A( 1.5) A( 1.8) A( 3.0) Optional mesh; 40, 60, 80, 100, 200mesh, etc. *Models of 300A(12") or higher are designed for boiler making welding. Nom. Size L H1 H2 D Weight(kg) 65(21/2") (3") (4") (5") (6") (8") (10") (12") (14") (16") (20") Nom. Size L H1 H2 D Weight(kg) 65(21/2") (3") (4") (5") (6") (8") (10") (12") (14") (16") (20") Nom. Size L H1 H2 K Grooved Connection Weight(kg) C D A B OMS-1 OMS-2 65(21/2") (3") (4") (5") (6") (8") (10") (12") (14") (16") (20") *Dimensions of the joint can be customized to meet requirements of the order. (Joint Detail)

3 OMEGA TYPE STRAINER Nom. Size S Cover Bolt & Nut Nut Assembly Torque Standard Q'ty Spanner N m Lb ft 65(21/2") 180 M14 4 Hex (3") 220 M12 6 Hex (4") 260 M14 8 Hex (5") 300 M14 8 Hex (6") 340 M16 12 Hex (8") 400 M20 12 Hex (10") 500 M20 16 Hex (12") 610 M24 16 Hex (14") 720 M24 24 Hex (16") 850 M30 24 Hex (20") 1100 M36 24 Hex S Unscrew stud nuts on the cover with a spanner.(see spanner size at above data) Separate the cover and gasket using four grooves at the back and forth and right and left after removing nuts. For models of 100A or higher, lift and remove the cover using I-Bolt for the handle. Dissemble the screen in a top-down manner and remove foreign substances, before assembling it in reverse order. With a brush, remove foreign substances through the opening at the inlet of the screen. Mesh Screen As a wire net screen, it has finer meshes as the number increases and is marked with the size of the mesh per unit length (per inch) Perforated Screen It is marked not with mesh of wire net scree widely used, but with the size of perforated hole and distance between holes, or pitch, or the size of hole per unit area (Inch 2 ) and total of holes. Open Ratio Ratio to total open area per unit area Open Area x Open ratio (total open area on screen surface) Open Area Ratio Nom. Size Screen Standard (Deployment) Screen Open Ratio Open Area Nominal Cross-sectiona l Area Open Area Ratio 65(21/2") 221 x ,252 3, ( 1.5 x 2.1P) 80(3") 272 x ,639 5, % 100(4") 364 x ,406 7, (5") 354 x 292 ( 1.8 x 2.5P) 48,686 12, (6") 438 x % 69,522 17, (8") 561 x ,521 31, ( 3.0 x 4.0P) 250(10") 724 x ,733 49, % 300(12") 860 x ,492 70, (14") 1010 x ,213 96, ( 3.0 x 4.0P) 400(16") 1160 x , , % 500(20") 1450 x , , x 2 91x1.5 2 Calculation of Open Ratio (for 100A) = = = 46.4(%) P

4 OMEGA TYPE STRAINER Ω-STRAINER Y-STRAINER Flows linearly with less pressure loss. The screen is partially dispositioned toward the inlet, with foreign substances gathered at the outlet, making accumulated foreign substances cause less pressure loss. The fluid revolves in the screen before flowing, causing much pressure loss. Accumulated foreign substances revolve with the fluid, raising pressure loss and causing wear of the cover. The cover, assembled horizontally, is easy to remove using grooves on the over after unscrewing nuts and separating the gasket with notching. (Use I-Bolt for 100A or over.) The cover is assembled 45 downward and there is no device to separate the Gasket, making it hard to dissemble. Self-load of the cover may cause the risk of fall, so a safety device to prevent it is required. Ω-shaped, the screen is easy to remove from the body with its elasticity and hanger. The screen is cylindric, making it hard to remove from the body when foreign substances are accumulated outwards. Assembled in top-down fashion easily. It is necessary to assemble 45 upward, so it is impossible to place the screen alone in the body. In contrast to dissembly, place into stud bolt in the body using I-Bolt and screw nuts. The screen and the cover should be assembled 45 upwards with the body, making it very hard to assemble. It takes around 4 to 5 mins for small to medium sizes of 150A or below. Depending on conditions to life the cover, it takes around 7 to 9 mins for large sizes of 200A or over using I-Bolt. For small sizes of 50A or below, it takes around 6 to 7 mins when Screen Cap is removed normally. Depending on the conditions of dissembling the cap, more time is needed. As it is hard to dissemble and assemble medium sizes of 150A or below, requiring 10 to 13 mins to the minimum, and even large sizes of 200A or higher may not be dissembled and assembled. The cover is damaged due to concurrent revolution of foreign substances and the fluid. Lineal flow of the fluid minimizes pressure loss.

5 OMEGA TYPE DUPLEX STRAINER - Main Flow: lineal at a normal condition with the least pressure loss. - Bypass Flow: used only for cleanup of the main flow strainer. - Screen is dissembled and assembled in top-down manner, making it easier to clean the screen. - Installation space is small and lightweight and the lineal pipeline at in and outlet makes it easier to build. - Concept is simple with an affordable lightweight structure, requiring lower facilities and maintenance costs. H2 Nom. Size L P H1 H2 D S Weight(kg) 65A(21/2") A(3") A(4") A(5") A(6") A(8") A(10") (12") (14") (16") (20") Valve Dist (L) may be subject to change depending on site conditions. - Valve Dist (L) for 10k and 20k is the same. - Models of 300A(12") or higher are separately made and supplied on demand. Existing Model Omega Type

6 OMEGA TYPE STRAINER Pressure loss of the strainer happens due to different values caused by structural difference and accumulated foreign substances as the screen is not regularly cleaned. This lowers pump efficiency, causing the increase in power consumption. For 100A Size, test data on the condition that the screen is not blocked and converted losses are as below. Classificat ion Pressure loss (kg/cm 2 ) Consumption Power(kWh) Amount of Loss (won) 1 hour 1 day 1 month 1 year Ω Type , ,325 Y Type , ,075 Loss decrease ,497-54,750 For more detail, see efficiency comparison data. However, the above data are from the condition that the screen is fully opened. Ω Type and Y Type are basically different structural efficiencies as shown above, and on sites, more foreign substances come in over time, making the screen to the channel blocked. Table 1 shows test data depending on the blockage ratio of the screen and consumption cost loss depending on additional power consumption. Classification Additional power consumption Power rate Per hour Per day (6 hours) Per month (30 days) (Lowest household rates for 100kWh or below apply.) Per year (365 days) None Closing Ω Type kwh 50.85won won 9,153.74won 111,370.48won Y Type kwh 1kWh=55.7won 75.86won won 13,655.41won 166,140.85won Y-Ω value kwh 25.01won won 4,501.67won 54,770.37won 25% Closing Ω Type kwh 68.65won won 12,357.55won 150,350.15won Y Type kwh 1kWh=55.7won won won 18,434.81won 224,290.14won Y-Ω value kwh 33.76won won 6,077.26won 73,940.00won 50% Closing Ω Type kwh won won 18,307.48won 222,740.96won Y Type kwh 1kWh=55.7won won won 27,310.82won 332,281.69won Y-Ω value kwh 50.02won won 9,003.35won 109,540.73won 75% Closing Ω Type kwh won 1,220.50won 36,614.95won 445,481.92won Y Type kwh 1kWh=55.7won won 1,820.72won 54,621.65won 664,563.38won Y-Ω value kwh won won 18,006.70won 219,081.47won 80% Closing Ω Type kwh won 1,525.62won 45,768.69won 556,852.40won Y Type 6.81 kwh 1kWh=55.7won won 2,275.90won 68,277.06won 830,704.23won Y-Ω value kwh won won 22,508.37won 273,851.84won 85% Closing Ω Type kwh won 1,983.31won 59,499.30won 723,908.11won Y Type kwh 1kWh=55.7won won 2,958.67won 88,760.18won 1,079,915.5won Y-Ω value kwh won won 29,260.88won 356,007.39won 90% Closing Ω Type 9.13 kwh won 3,051.25won 91,537.38won 1,113,704.79won Y Type kwh 1kWh=55.7won won 4,551.80won 136,554.12won 1,661,408.46won Y-Ω value 4.49 kwh won 1,500.56won 45,016.74won 547,703.67won

7 Indispensible Pipeline Component "STRAINER" You can find The world best "ENERGY SAVING" Solution CHECK VALVE should protect the pump from water hammer and minimize waste of energy.