Globe Valves

Valves

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Globe Valves

We supply all types of Globe Valves. They are available in On-Off Disc, Control Disc and Parabolic Disc types. JV Globe Valves are manufactured in almost all materials like C.I, SG IRON, WCB, LCB, WC-1, WC-6, WC-9, CF-8, CF-8M, CF-3, CF-3M, CN-7M, HV-9, CD4-Cu, Hastelloy, Brass and Bronze.

Our basic product range is 20 NB to 400 NB in size and BS/ANSI 150# to 2500# and PN-10 to PN-250 in pressure rating. All JV Globe Valves rated 600# and higher are equipped with STELLITE trim, which, upon request, is also available for lower rated valves.

JV Globe Valves are equipped with a 100% smooth flow area to reduce pressure drop across the valve. Specially designed seat and packing material are provided for superheated steam, high temperature oils and fluids to ensure trouble free service and a longer service life. JV Globe Valves are equipped with specifically machined and lapped backseats which facilitates replacement of gland packing when the valve is open and/or under pressure.

Also available are custom-made larger sizes, higher pressure ratings and special material of construction. JV Globe Valves are inspected and certified by our Q.C. Department. Clients or Third Party Inspection are also


Specifications

  • Size 20mm to 400mm.
  • Pressure 150# to 2500# or PN 16 to PN 700.
  • Available Body Materials A105, LF2, F11, F22, F5, F304, F316, F304L, F316L, WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, Duplex, Brass & Bronze.
  • Design & Manufacture BS 1873, ASME B16.34.
  • Face to Face ASME B16.10, DIN 3202, BS2080.
  • End Connection ANSI B16.5, ASME B16.11, ASME B1.20.1, ASME B16.47, DIN2543-2551, BSP, NPT, Socket/Butt Weld.
  • Test Standard ISO5208, API 600, BS 6755.
  • Structure Type Throttle Pattern, S-Pattern, Oval Pattern.
  • Actuation Hand wheel, Gear, Pneumatic, Electric.
 
 
 
 

Globe valves

A Globe valves is a linear motion valve and are primarily designed to stop, start and regulate flow. The disk of a Globe valve can be totally removed from the flow path or it can completely close the flow path.

Conventional Globe valves may be used for isolation and throttling services. Although these valves exhibit slightly higher pressure drops than straight=through valves (e.g., gate, plug, ball, etc.), they may be used where the pressure drop through the valve is not a controlling factor.

Because the entire system pressure exerted on the disc is transferred to the valve stem, the practical size limit for these valves is NPS 12 (DN 300). Globe valves larger than NPS 12 (DN 300) are an exception rather than the rule. Larger valves would require that enormous forces be exerted on the stem to open or close the valve under pressure. Globe valves in sizes up to NPS 48 (DN 1200) have been manufactured and used.

Globe valves are extensively employed to control flow. The range of flow control, pressure drop, and duty must be considered in the design of the valve to avert premature failure and to assure satisfactory service. Valves subjected to high-differential pressure-throttling service require specially designed valve trim.

Generally the maximum differential pressure across the valve disc should not exceed 20 percent of the maximum upstream pressure or 200 psi (1380 kPa), whichever is less. Valves with special trim may be designed for applications exceeding these differential pressure limits.

 

 

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