Hf-Valves

Category: Gate Valve

  • Forged Steel Gate Valve

    Forged Steel Gate Valve

    Product

    Forged Steel Gate Valve

    Forged Steel Gate Valve is manufactured from high-quality forged steel materials, offering excellent strength, durability, and reliable sealing performance. It is widely used in oil, gas, chemical, power generation, and high-pressure pipeline systems. The valve controls the flow by moving the gate vertically, providing low flow resistance and stable operation. Thanks to the forging process, it features enhanced pressure resistance, corrosion resistance, and superior performance under high-temperature and high-pressure conditions. With a compact design, long service life, easy operation, and convenient maintenance, it is an ideal shut-off solution for demanding industrial applications.

    Specification

    Size: NPS3/4”-2”

    Class: 150Lb~2500Lb

    Working temperature: -29～500℃

    Body material: A105, F304, F316, F51 Duplex

    Design: API 602

    Connection: RF, SW, BW, RTJ   ASME B16.11  ASME B16.25  ASME B16.5

    Face to face: ASME B16.10

    Test: API 598

    NACE: NACE MR 0103  NACE MR 0175;

    Applications: Oil and Gas, Petrochemical, Power Plant, Steam System, Refinery

    forged steel gate valve

    Main Parts Material:

    Body

    A105

    A182 F22

    A182 F304(L)

    A182 F316(L)

    Seat

    A276 420

    A276 304

    A276 304(L)

    A276 316(L)

    Disc

    A182 F430&410

    A182 F304

    A182 F304(L)

    A182 F316(L)

    Stem

    A182 F6

    A182 F304

    A182 F304(L)

    A182 F316(L)

    Gland Packing

    A276 410

    A182 F304(L)

    A182 F316(L)

    Features:

    1. The channel is smooth and the flow coefficient is small. The sealing surface is less susceptible to medium erosion and erosion.
    2. The sealing surface is made of alloy steel or hard alloy, with good wear and scratch resistance.
    3. Adopting flexible graphite filler, reliable sealing, and easy and flexible operation.
    4. The flow direction of the medium is unrestricted, does not disturb flow, and does not reduce pressure.
    5. Filler replacement and maintenance can be carried out in an online shutdown state, which is convenient and fast without affecting system operation.
  • Knife Gate Valve

    Knife Gate Valve

    Product

    KNIFE GATE VALVE

    Knife Gate Valve is designed for reliable shut-off and isolation of challenging media in industrial pipeline systems. Featuring a sharp-edged gate design, it can effectively handle slurry, pulp, wastewater, powder, and other viscous media. With a compact structure, low pressure drop, and easy maintenance, it provides excellent sealing performance and long service life. Widely used in water treatment, mining, pulp & paper, chemical, and power industries.

    Specification

    Size: DN50-DN800

    Pressure: PN10-PN16

    Main material: WCB 、Ductile Iron、Stainless steel

    Valve seat: PTFE

    Connection: Wafer. Flange

    Operation: Handwheel,Electric,Penumatic

    Main Parts Material:

    Body

    Stem

    Sealing

    Packing

    		 

    WCB

    WCB

    2Cr13

    Hard-alloy, PTFE

    V-shape PTFE,Flexible graphite Rings

    SS304

    ZG1Cr18Ni9Ti

    0Cr18Ni9 (304)

    SS304

    SS304

    0Cr18Ni9 (304)

    Features

    1. The fluid resistance is small, and the sealing surface is less washed and eroded by the medium.
    2. Easyto open and close.
    3. The flow direction of the medium is not limited, and the pressure is not disturbed or reduced.
    4. Durable and simple to use.
    5. Simple shape, short structure length, wide range of application.
  • Cryogenic Gate Valve

    Cryogenic Gate Valve

    Product

    Cryogenic Gate Valve

    Our Cryogenic Gate Valve is designed in two different bonnet types. One is bolted bonnet, where the valve body and bonnet are connected by bolt nuts and wound gaskets (316 clamp flexible graphite). Metal ring connections are also available for special requirements. The other type is welded bonnet with threaded connection between valve body and bonnet.

    Specification

    Size: DN15~800mm
    Pressure : PN1.6~2.5Mpa
    Main Material: LCB、LF1、 LF3、LC3、 CF8、 F304 ect.
    Suitable Temperature: -45°C~ 196°C
    Design: JB/T 7749-95
    Face to face : GB/T 12221-1989
    Test: JB/T 9092-1999

    Cryogenic Gate Valve for low temperature pipeline service

    Main Parts Material:

    Body/Bonnet

    Stem

    Seat

    Gasket

    Packing

    Medium

    LCB

    1Cr7Ni12

     

    STL/STL

    1Cr13/Flexible

    graphite

    Low-temperature asbestos

    PTFE

    Flexible graphite

    Propane/propene

    Methanol/ethane

    Gas/liquid ammonia

    LC1

    LC2

    LC3

    LC4

    Features:

    1. The fluid resistance is small, and the sealing surface is less affected by the brushing and erosion of the medium.
    2. Easy to open and close.
    3. The flow direction of the medium is not limited, no disturbance and no pressure reduction.
    4. Simple shape, short structure length, good manufacturing process, wide range of application.
    5. It is easy to cause erosion and abrasion between the sealing surfaces, and maintenance is more difficult.
    6. The appearance size is large, and a certain space is required for opening. Take long time to open and close.
    7. The structure is more complicated.
  • High-Pressure Gate Valve

    High-Pressure Gate Valve

    Product

    High-Pressure Gate Valve

    High-Pressure Gate Valve is an industrial valve designed for high pressure and high temperature applications. With a robust wedge gate structure, it offers excellent sealing, low pressure drop, and long service life. Widely used in oil and gas, petrochemical, power generation, and industrial pipeline systems, it ensures reliable shut-off and safe flow isolation for critical media.

    High-Pressure Gate Valve Specification

    Size: NPS 2″~18″

    Pressure : Class1500/Class2000/Class2500/Class3500

    Main Material: WCB; WC1,WC6,WC9 CF8M, CF3M, CF3 ;LCB,LCC etc.

    Design: API600

    Test: API598

    BW: ASME B16.25

    FACE TO FACE: ASME B16.10

    high-pressure gate valve

    Main Parts Material:

    BODY

    BODY.BONNET.GATE

    STEM

    PACKING

    WCB

    CF8

    CF8

    Flexible graphite

    WC6

    WC6

    38CrMoALA

    Flexible graphite

    ZG1Cr5Mo

    ZG1Cr5Mo

    38CrMoALA

    Flexible graphite

    CF8

    CF8

    F304

    Flexible graphite

    Features:

    1. Reasonable structure design, good performance, smooth channel and small flow coefficient
    2. The sealing surface is made of stainless steel and hard alloy, witha long service life.
    3. The use of flexible graphite filler, reliable sealing performance, light and flexible operation
  • Pressure Seal Gate Valve

    Pressure Seal Gate Valve

    Product

    Pressure Seal Gate Valve

    Pressure Seal Gate Valve is designed for high pressure and high temperature service, providing reliable shut-off performance and long-term durability. Featuring a pressure seal bonnet design, it reduces leakage risk and ensures stable operation under demanding conditions. It is widely applied in power generation, oil & gas, petrochemical, and steam pipeline systems. Available in cast steel construction with customized solutions to meet various industrial requirements.

    Specification

    Size: NPS 2″~24″
    Pressure : 900LB~2500LB
    Connection: RF, RTJ, BW
    Face to face: ASME B16.10
    Flange Dimension Standards：ASME B16..5
    Design ：API602, ASME 16.34, BS 5352, BS 6364
    Test: API598
    Operation: Handwhel, Worm Gear, Electric actuator, Pneumatic actuator, Hydraulic Actuator.

    pressure seal gate valve

    Main Parts Material:

    Body

    WCB

    WC6

    CF8

    CF3

    Disc

    WCB

    WC6

    CF8

    CF3

    Stem

    F6a

    38CrMoALA

    F304

    F316

    Packing

    Packing

    Graphite

    Graphite

    Graphite

    Applicable medium:

    water, steam，other non-corrosive medium

    Features:

    1. The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium.
    2. Easy to open and close.
    3. The flow direction of the medium is not limited, and the pressure is not disturbed or reduced.
    4. Simple shape, short structure length, good manufacturing process, wide range of application.
    5. Unique self-sealing design, the higher the pressure, the more reliable the sealing.
  • Stainless Steel Gate Valve

    Stainless Steel Gate Valve

    Product

    Stainless Steel Gate Valve

    Stainless Steel Gate Valve is a corrosion-resistant industrial valve designed for reliable shut-off and flow isolation. Made from high-quality stainless steel, it offers excellent durability, strength, and long service life. Widely used in chemical, food processing, pharmaceutical, oil & gas, water treatment, and industrial pipeline systems, it is suitable for applications requiring clean, safe, and efficient fluid control.

    Specification

    Size: NPS 2″ ~32″
    Pressure: 150LB -900LB
    Connection: RF, RTJ, BW
    Face to face: ASME B16.10
    Flange Dimension Standards: ASME B16..5
    Design ：API602, ASME 16.34, BS 5352, BS 6364
    Test: API598
    Operation: Handwheel, Worm Gear, Electric actuator, Pneumatic actuator, Hydraulic Actuator.

    Stainless Steel Gate Valve

    Main Parts Material:

    Part Name

    ZG1Cr18Ni9T
    i304 CF8

    ZGOOCr18Ni10
    304L CF3

    ZG1Cr18Ni12Mo
    2Ti316 CF8M

    zgoocR17nI14mO2
    316L CF3M

    WCB

    Body/Cap

    OCr18Ni9

    OOCr18Ni10

    OOCr18Ni9Mo2

    OOCr18Ni10Mo2

    WCB

    Stem

    OCr18Ni9

    OOCr18Ni10

    OOCr18Ni9Mo2

    OOCr18Ni10Mo2

    1Cr3

    Stem Packing

    PTFE

    PTFE

    PTFE

    PTFE

    Graphite

    Gasket

    304+PTFE

    304L+PTFE

    316+PTFE

    316L+PTFE

    Graphite+304

    Gland Flange

    OCr18Ni9

    OOCr18Ni10

    OOCr18Ni9Mo2

    OOCr18Ni10Mo2

    WCB

    Bolt

     Stainless Steel

    34GtMoA

    Nut

     Stainless Steel

    45

    Features:

    1. The sealing surface of the gate and seat is made of cemented carbide overlay welding of different hardness, which is well sealed and long in use;
    2. The valve stem is tempered and surface nitride, and has good corrosion resistance, scratch resistance and wear resistance;
    3. Flexible gate structure, medium and large diameter thrust bearings are set, the friction force is small, and it is equipped with a handwheel, easy to open and close.
    4. It can adopt piping flange standard and flange sealing surface form, which meets the engineering needs and user requirements.
  • Cast Steel Gate Valve

    Cast Steel Gate Valve

    Product

    Cast Steel Gate Valve

    Cast Steel Gate Valve is a durable industrial valve designed for reliable shut-off and flow isolation in demanding applications. Manufactured with a cast steel body, it provides excellent strength, corrosion resistance, and long service life. Widely used in oil and gas, petrochemical, power generation, water treatment, and industrial pipeline systems, it is suitable for high pressure and high temperature media.

    Specification

    Size: NPS 2”~40”
    Pressure: 150LB~2500LB
    Connection: RF, RTJ, BW
    Face to face: ASME B16.10
    Flange Dimension Standards：ASME B16..5
    Design：API602, ASME 16.34, BS 5352, BS 6364
    Test: API598
    Operation: Handwhel, Worm Gear, Electric actuator, Pneumatic actuator, Hydraulic Actuator.

    cast steel gate valve

    Main Parts Material:

     

    Body

    ASTM A216 WCB

    ASTM A351 CF8

    Disc

    WCB

    CF8

    CF8M

    MONEL

     

    Stem

    F6

    F304

    F316

    MONEL

    F304

    Seat

    13Cr  13Cr STL

    304 STL

    316 STL

    MONEL

    304 304 STL

    Features:

    1. Compact structure, small size, good rigidity, safe and reliable .
    2. The closing element (gate) adopts an elastic structure, which can automatically compensate for valve body deformation caused by abnormal load or temperature during operation.withthe reliable sealing。
    3. For 150LB manual valves with a diameter large or equal to NPS10 “, and pressure 600LB-2500LB largeror equal to NPS6”, are equipped with rolling bearings in their operating devices for easy opening and closing.
    4. The main materials,trimand fasteners can be reasonably combined according to user requirements or actual working conditions.
    5. For valves≤ 10 “, the valve seat can be replaced.