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Product Name: Top Guided Single Seated Control Valves with Steam Jacket

Type: Globe

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

Pressure Rating: ANSI 150 ~ ANSI 300 (PN16~PN64, JIS10K~JIS20K)

Body Material: Carbon steel, Stainless steel, Alloy steel

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

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  • Model TT-HTS Top-Guided Single Seated Control Valves with Steam Jacket are designed for heavy duty service requiring high adiathermic capability.

    The compact valve body, having an S-Shape flow passage that features low-pressure loss, allows a large flow capacity, range ability, and high accuracy flow characteristics.

    The valve plug is highly vibration-resistant as it is held by a top guide section which has a large sliding area. The flow shut-off performance complies with the ANSI Standards. The actuator integrated with simplest mechanisms utilizes a compact yet powerful diaphragm actuator loaded with multiple springs.

    The model HTS Valves are widely applicable for reliable control, with high shut-off performance, in high or low temperature, high-pressure process lines.


    Body Type: Straight-through, cast globe valve

    Nominal size: 1ó, 2, 2ó, 3, 4, 6 inches

    For combining the nominal size and flange size, refer to Table 1.

    Pressure rating: JIS 10K, 16K, 20K, ANSI Class 150, 300, JPI Class 150, 300


    For body/trim material combinations and operating

    temperature ranges, refer to Table 2.

    Bonnet: Plain bonnet (0 to 230°C), Extension type bonnet (230 to 566°C)

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

    Jacket type: Body; Full-jacket, semi-jacket* Bonnet; Without jacket, with jacket*

    Note) The following structural combinations (*) are used for the jacket.

    Packing / Grease

    • Grease not provided; When V shaped PTFE packing or PTFE yarn packing is used.

    • Grease provided; When asbestos yarn, PTFE impregnated asbestos yarn , asbestos yarn with graphite, or graphite, or graphite packing is used.

    Note) PTFE: Polytetrafluoroethylene

    Gasket Type: Flat type, serrated type

    Materials: SUS316, SUS316L, SUS329J1, copper, aluminum


    Valve plug

    Single-seated, Contoured type plug

    • High-capacity type (For flow characteristics, refer to Figure 1.) <Metal seat> Equal percentage (%C), Linear (LC)

    • High-flow characteristics type <Metal seat> (For flow characteristics, refer to Figure 2.)Equal percentage (%CF), Linear (LCF) Single-seated, Quick-opening type plug<Metal (Stellite) seat> (QS)


    For body/trim material combinations and operating

    temperature ranges, refer to Table 1.

    Note) For fluid conditions that require Stellite, refer toFigure 4.

    Actuator Type

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

    Spring Type piston actuator (Type PSA6)

    Double acting piston actuator (Type VP)

    Action: Direct or reverse action


    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/cmÇ} or 80 to 240 kPa {0.8 to 2.4 kgf/cmÇ}

    (Type PSA6) 200 to 340 kPa {2.0 to 3.5 kgf/cmÇ} or 200 to 390 kPa {2.0 to 4.0 kgf/cmÇ}

    Supply pressure

    Diaphragm actuator

    Type HA, PSA1 : 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 PSA6 : 400 to 500 kPa {4.0 to 5.0 kgf/cmÇ}

    Piston actuator

    Type VP : 290 to 490 kPa {3.0 to 5.0 kgf/cmÇ}

    Note) Allowable differential pressure varies depending

    on spring range and air supply pressure.

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