Marine Y-Type Three-Way Control Valve LZF

Pneumatic control valves have two modes of action: converging and diverging. In certain applications, they can replace two two-way valves and one three-way valve for piping, making them widely used. They achieve regulation of parameters such as pressure, flow, temperature, and liquid level. The valve core structure adopts a cylindrical thin-wall window and uses side guidance of the valve core, offering good stability, low vibration tendency, low noise, high allowable pressure difference, and simple wiring. When the nominal diameter and pressure difference are small, converging valves can be used in diverging applications and are interchangeable. However, for diverging applications with a nominal diameter greater than DN100 and a large pressure difference, they are not interchangeable.
Standard Specifications:
Valve Body Type: Cast spherical valve body
Valve Core Type: Double-seat valve core
Nominal Diameter: DN20~300 NPS 3/4"~12"
Nominal Pressure: PN16~100 CLASS 150LB~600LB
Connection Method: Flange: FF, RF, MF, RTJ
Welding: SW, BW
Face-to-Face Distance: Complies with IEC 60534
Bonnet Type: Standard type (-5℃~230℃),
Finned type (for -45℃ to above 230℃),
Low-temperature extended type (-196℃~-45℃), Bellows seal type
Sealing Gasket: Metal-clad graphite sealing gasket
Actuator: Pneumatic: Multi-spring diaphragm actuator, Piston actuator
Surface Coating: Green acrylic polyurethane enamel
Rated Flow Coefficient:
Seat Diameter (mm)

25



40

50

65

80

100

125

150

200

250

300

Rated Flow Coefficient Cv

8.5

13

21

34

53

85

135

210

340

535

800

1280


Sealing Gasket: Metal-clad graphite sealing gasket
Actuator: Pneumatic: Multi-spring diaphragm actuator, Piston actuator
Surface Coating: Green acrylic polyurethane enamel

Rated Flow Coefficient:
Seat Diameter (mm)

25

40

50

65

80

100

125

150

200

250

300

Rated Flow Coefficient Cv

8.5

13

21

34

53

85

135

210

340

535

800

1280

Electric control valves and sleeve control valves receive DC current signals from regulating instruments to change the flow of the regulated medium, keeping the controlled process parameter at the set value. They are widely used in production automation control in industrial sectors such as power, metallurgy, chemical, petroleum, light textile, pharmaceutical, and papermaking. This series of products has a nominal diameter from 20 to 300 mm, nominal pressures of 1.6, 4.0, and 6.4 MPa, accepts signals of 0~10 mA.DC or 4~20 mA.DC, and operates in a temperature range from -40℃ to 450℃. Among them, electric single-seat control valves are suitable for applications with small pressure differences, high medium viscosity, or slight particulate impurities; electric sleeve control valves are suitable for applications with large pressure differences and high leakage. Main component materials: Valve body, bonnet: HT200,
Valve core: 1Cr18Ni9Ti, Stellite alloy overlay welding, reinforced PTFE
Packing: PTFE, flexible graphite, stainless steel bellows
Push rod, bushing: 2Cr13
Gasket: Rubber asbestos sheet, 1Cr18Ni9Ti, graphite spiral wound gasket Main technical parameters: Nominal diameter DN
(mm)
(Seat diameter dn) 20 25  40 50 65 80 100 125 150 200 250 300 (10) (12) (15) (20) Rated flow
coefficient Kv Linear 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176 275 440 690 1100 1760 Equal percentage 1.6 2.5 4 6.3 10 16 25 40 63 100 160 250 400 630 1000 1600 Rated travel L (mm) 10 16 25 40 60 100 Nominal pressure PN (MPa) 1.6, 4.0, 6.4 Inherent flow characteristic Linear, equal percentage Inherent adjustable ratio R 50:1 Allowable
leakage Single seat Hard seal: Class IV, Soft seal: Class VI Sleeve Hard seal: Class II, Soft seal: Class VI Operating temperature t (℃) -20~200, -40~250, -40~450, -60~450 Signal range (mA.DC) 0~10, 4~20 Power supply voltage 220V, 50Hz Action mode On failure: Fully closed, fully open, locked in position

Are you looking for electric control valves, manufacturers and quotes for control valves and electric control valves,
Pneumatic threaded ball valve actuators have a service life of over 1 million cycles. The valves are precision cast with degreasing, processed by imported CNC lathes, and strictly tested by the company, with a service life of over 100,000 cycles. Multiple national designs ensure quality that can replace imported products from Europe, America, and Japan. The products are positioned as high-end and widely used in large foreign enterprises with high requirements for valve quality, such as chemical gas, spandex factories, chemical fiber factories, natural gas, mechanical equipment, pharmaceuticals, food, petrochemicals, etc. They are often used in Fortune 500 companies. Product features: Anti-static device between ball and valve body; API607 fire-safe design certification; Anti-blowout stem design; Valve body pressure balance hole design; ISO5211 high platform design; Double disc springs enhance stem sealing; Control type: O-type emergency shut-off, V-type proportional control; Structure type: Full flow straight-through; Connection type: BSPT, NPT, BSP, G thread, etc.; Nominal diameter: DN15~DN80; Valve body material: CF8M, CF8, WCB; Sealing material: PTFE, R-PTFE, EK, PEEK; Working pressure: 1000 PSI, 2000 PSI; Working temperature: -20℃~+220℃.

Pneumatic Valves

Pneumatic valves refer to valves with pneumatic actuation, with the actuation code being 6. Common types include pneumatic butterfly valves, pneumatic gate valves, pneumatic ball valves, pneumatic globe valves, pneumatic diaphragm valves, pneumatic control valves, etc.

Common pneumatic butterfly valve models include: D621X, D641H, D641X, D641F, D642F, D643H, BD643H, BD643Y, BD643WC, D663H, D671F4, D671X, D671H, D672F, D673H, etc.

Common pneumatic ball valve models include: Q641F, Q641H, Q641Y, Q644F, Q645F, Q647F, QD647F, VQ647H, Q66, PQ640H, PQ640Y, PY640F, PQ671H, etc.

Common pneumatic gate valve models include: Z641W, Z641Y, Z641F, PZ641H, PZ673H, PZ673Y, PZ673F, Z673H, etc.

Common pneumatic globe valve models include: J614F, J641H, J661Y, DJ641Y, etc.

Common pneumatic diaphragm valve models include: G41JW, G6B41F, G6B41J, G6B41W, G6K41F, G6K41W, G6K41J, etc.

Common pneumatic control valve models include: T6S47Y, T6B68Y, T6B67H, T6S67Y, T6S69Y, T6K47Y, etc.

Other pneumatic valve models include: Y615W, Y645H, Y6K42, Y665H, Y6K42Y, Y6S42, etc.

Common design and manufacturing standards for pneumatic valves include: National standard, American standard, European standard, Japanese standard, German standard, etc.

Common materials for pneumatic valves include: Cast iron, ductile iron, carbon steel, stainless steel, aluminum alloy, etc.

Nominal diameters for pneumatic valves include: DN25, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800, DN900, DN1000, DN1200, etc.

Nominal pressures for pneumatic valves generally include: PN0.6 MPa, PN1.0 MPa, PN1.6 MPa, PN2.5 MPa, PN4.0 MPa, PN6.4 MPa, PN10.0 MPa, PN16.0 MPa, etc.