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ND40 Globe Valves

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ND40 Globe Valves

Globe valves are one of the most reliable and widely used valve types for throttling and regulating flow in pipelines. Their design is fundamentally different from gate or ball valves, which are primarily intended for isolation (fully open or fully closed service). In a globe valve, the disc moves perpendicular to the flow, which creates a gradual change in flow area as the valve opens or closes. This makes them ideal anywhere precise control, stable operation, or controlled pressure drop is needed.

Globe valves are especially suited for systems where flow rate must be adjusted frequently, where sudden surges could damage downstream equipment, or where tight shut-off is required even after repeated operation. They offer better flow control accuracy than most other valve types, which is why they are commonly found in control stations, dosing lines, and recirculation systems.

At Exceed, we design our globe valves to maximize these inherent strengths. Every valve is built with precision-machined internals for smooth throttling, high-integrity sealing surfaces for reliable shut-off, and rugged construction to withstand demanding operating conditions. This ensures our valves deliver long-term, consistent performance while reducing the total cost of ownership for your plant.

 

Technical Data:

Manufacturing Std: BS 1873

Testing & Inspection Std.: API598

Face to Face.: As per DIN ND40

End Connections: Flanged as per DIN2533/2543/2545

 

Engineering Options:

  • Available on request with gearbox, electric actuator or pneumatic actuator
  • Special materials available on request
  • Remote operations on request

Globe valves control the flow of fluids by using a movable disc and a stationary ring seat inside a spherical body. When the handwheel or actuator is turned, the stem moves the disc vertically towards or away from the seat.

As the disc approaches the seat, the flow area narrows, which increases resistance and reduces flow. This linear flow characteristic allows operators to make small, precise adjustments to the flow rate.

Key design aspects that make globe valves suitable for control:

  • Shorter travel between open and closed positions — allows quicker response.

  • Well-guided disc and stem — prevents vibration and ensures smooth movement.

  • Flow path changes direction inside the body — increases pressure drop, which actually helps in throttling and pressure control.

  • Available in different seat and disc designs (plug type, needle type, parabolic) to suit various control needs.

Because of this design, globe valves are ideal anywhere gradual, accurate flow control is needed instead of just fully open/closed operation.

  • Steam and condensate lines – Allow controlled opening to prevent water hammer and thermal shock.

  • Cooling and heating loops – Help balance flow for precise temperature control across multiple branches.

  • Dosing or fuel lines – Provide accurate control where small changes in flow can affect the process outcome.

  • Pump bypass lines – Maintain a minimum flow to protect pumps from running dry or overheating.

  • Control stations – Gradually reduce pressure to protect downstream equipment from sudden surges.

  • Excellent Throttling Capability
    Globe valves allow fine flow regulation.
    Exceed uses precision-machined seating surfaces to keep throttling consistent over long-term use.

  • Tight Shut-Off
    The disc presses squarely onto the seat to block flow completely.
    Exceed ensures accurate alignment of the disc and seat for reliable sealing.

  • Durability in Demanding Conditions
    Globe valves can handle high pressure and temperature cycles.
    Exceed builds valves from certified materials and robust stem-disc designs to resist wear and thermal stress.

  • Ease of Operation
    Smooth stem threads and guided movement make globe valves easier to operate.
    Exceed optimizes stem design to lower operating torque and extend actuator life.

No Parts Name Qty Materials
1 Body 1 ASTM A 216 Gr. WCB
ASTM A 351 CF8/CF8M/CN7M
2 Seat 1 AISI - 410
3 Plug 1 AISI - 410
4  Back Seat 1 AISI - 410
5  Gland Packing   Graphited
6 Spindle 1 AISI -410
7 Gland Follower 1 S.G Iron
8 Bonnet 1 IS 210 Gr. 220, ASTM A 216 Gr. WCB, ASTM A 351 CF8/CF8M/CN7M
9 Yoke Bush 1 S.G Iron
10 Hand Wheel 1 S.G Iron
11 Stud/Nut Req ASTM A 193 Gr.B7/ASTM A 194 Gr. 2H/M.S.
Class Working Pressure Temp. Hyd Test Pressure (Body) Hyd Test Pressure (Seat)
ND40 40 Kg/cm2 400°C 60 Kg/cm2 44 Kg/cm2

 

Important Notes:

1) Temprature shown is the maximum service temprature of the valve. The allowable working pressure decreases as the temprature increases.

2) The service & test pressure ratings shown are for WCB. The service & test pressures might change if a different material trim is selected.

Size NB. A B C D E
15 130 16 45 95 65
20 150 18 58 105 75
25 160 18 68 115 85
40 200 18 88 150 110
50 230 20 102 165 125
65 290 22 122 185 145
80 310 24 138 200 160
100 350 24 162 235 190
125 400 26 188 270 220
150 480 28 218 300 250
200 600 34 285 375 320

 

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