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Product Name: Pressure Balanced Cage type Control Valve

Type: Straight-through, cast globe valve

Size: 1-1/2'', 2'', 2-1/2'', 3'', 4'', 6'', 8''

Pressure Rating: ANSI 125 ~ ANSI 600 (PN16~PN100, JIS10K~JIS40K)

Body Material: Carbon steel, Stainless steel, Alloy steel

Operation: Pneumatic diaphragm actuator, Pneumatic piston actuator, Electric actuator


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  • OVERVIEW

    Model TT-HCB Pressure Balanced Cage Type Control Valves are designed for heavy duty services. The compact valve body, having a S-shape flow passage that features low pressure loss and a stabilizer that regulates turbulent flow around the cage, allows a large flow capacity, range ability, and high accuracy flow characteristics.

    The valve plug is structured in a pressure-balanced type that permits flow control of a high differential pressure with a small actuating force. The actuator integrated with simplest mechanisms utilizes a compact yet powerful diaphragm actuator loaded with multiple springs.

    The model HCB valves are widely applicable for reliable control of high or low temperature, high pressure or high differential pressure process lines where dynamic stability, low noise, and cavitation/flashing resistance are required.


    SPECIFICATIONS

    Body Type: Straight-through, cast globe valve

    Nominal size: 1-1/2’’, 2’’, 2-1/2’’, 3’’, 4’’, 6’’, 8’’ 

    Pressure rating:

    • JIS 10K, 16K, 20K, 30K, 40K

    • ANSI Class 125, 150, 300, 600

    • JPI Class 125, 150, 300, 600


    End connection

    • Flanged end(FF, RF, RJ, LG)

    • Welded end: SW (1-1/2, 2 inches), BW (2-1/2 to 8 inches)

    Material

    For body/trim material combinations and operating temperature ranges, refer to Table 1 .

    Bonnet

    • Plain bonnet (-17 to 230 °C)

    • Extension bonnet type 1 (-45 to -17 °C and 230 to 566 °C)

    • Extension bonnet type 2. Integral cast type (-100 to -45 °C), Welded type (-196 to -100 °C)

    • Bellows type

    For operating temperature and pressure range, refer to Figure 3.

    Note) Take care not to exceed the operating temperature ranges specified for respective materials.


    Gland type: Bolted gland

    Packing / Grease

    • Grease not provided

    When V-shaped PTFE packing or PTFE yarn packing is used.

    • Grease provided: When graphite packing is used.

    Gasket Type: Combination of serrated type and spiral wound type(integral cage), Serrated type (split cage)

    Material

    Stainless steel (SUS316, SUS316L, SUS329J1), copper, aluminum


    Trim

    Valve plug: Pressure balanced type

    Cage

    • High-capacity (For flow characteristics, refer to Figure 1.)

    -Metal seat: Equal percentage (%V), Linear (LV)

    -Soft seat: Equal percentage (%T), Linear (LT)

    • High-flow characteristics type

    -Metal seat (For flow characteristics, refer to Figure 2.), Equal percentage (%VF), Linear (LVF)

    -Soft seat (For flow characteristics, refer to Figure 2.), Equal percentage (%TF), Linear (LTF)

    Note) 1.For cage design (integral cage or splie cage) refer to Table 1. 

              2.For operating temperature and maximum differential pressure range of soft-seat type, refer to Figure 4.

    Material

    For body/trim material combinations and operating temperature ranges, refer to Table 1

    Note) For fluid conditions that require Stellite, refer to Figure 5.

    Actuator Type: Single acting diaphragm actuator (Type PSA1, HA or VA5)

    Spring Type piston actuator (Type PSA6R)

    Action

    Direct or reverse action

    Diaphragm

    Type PSA1, HA: Cloth embedded ethylene propylene rubber

    Type VA: Cloth-embedded chloroprene rubber


    Spring range

    Type PSA1, HA or VA5

    20 to 98 kPa {0.2 to 1.0 kgf/cm2},

    40 to 120 kPa {0.4 to 1.2 kgf/cm2},

    80 to 240 kPa {0.8 to 2.4 kgf/cm2}

    Type PSA6R

    200 to 340kPa {2.0 to 3.5 kgf/cm2}

    200 to 390kPa {2.0 to 4.0 kgf/cm2}

    Supply pressure

    Diaphragm actuator

    Type PSA1, HA: 120 to 390 kPa {1.2 to 4.0 kgf/cmÇ}

    Type VA5: 120 to 270 kPa {1.2 to 2.8 kgf/cmÇ}

    Spring type piston actuator

    Type PSA6R: 400 to 500 kPa {4 to 5kgf/cmÇ}

    Note) Allowable differential pressure varies depending on spring range and air supply pressure.

    Air connection: Rc1/4 or 1/4NPT internal thread

    Note) With Type VA, Rc. or .NPT adapter is provided on Rc1/2 internal thread (also providing Rc3/8 adapter is possible).

    Ambient temperature: -30 to 70 °C

    Valve action

    Air-to-close (Direct action actuator is combined.)

    Air-to-open (Reverse action actuator is combined.)

    Optional accessories

    Positioner*, pressure regulator with filter, hand wheel*, limit switch, solenoid valve, motion transmitter, booster relay, lock-up valve, and others.

    Note) 1. For the optional items, refer to the specification sheets and installation drawings of respective accessories.

              2. Accessories with the asterisk mark (*) are selected from among the following types depending on the actuators to be combined.


    Additional specification  (by special order)

    • Special inspection

    Flow characteristics inspection, material inspection(Material certificate), non-destructive inspection, steam inspection, low-temperature inspection

    • With drain plug

    • Double gland

    • Oil/water free treatment

    • Copper free treatment

    • York material SCPH2 (York material of PSA1 is SCPH2 as standard.)

     • Stainless steel (SUS304) atmosphere-exposed nuts and bolts

    • Special air piping and joint

    • Sand-/dust-preventive measure

    • Saline damage countermeasure

    • Cold-area use specifications

    • Tropical-area use specifications

    • Vacuum service


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