Cast Steel

CAST STEEL VALVES

Wednesday, 25 May 2011 15:16

CARBON STEEL; ALLOY STEEL; STAINLESS STEEL & EXOTIC ALLOY VALVES

This is the primary WALWORTH® product line, manufactured in accordance with ANSI classes 150, 300, 600, 900, 1500 & 2500 # and sizes from 2” up to 72” nominal diameter, provides the end user a wide variety of valves to satisfy their needs. WALWORTH® always keeps these valves in stock in the most common trims used in the industries.

Gate
Globe
Check

Cast Steel Gate Valves

The Gate Valve is used when the need exist for a device that allows an interruption or cut off the flow of a fluid.

Is not recommendable to use Gate Valves for flow modulation as the high velocity of the through may result in erosive damage to the wedge and seats when the valve is partially opened. Under normal operating conditions, the valve should remain either fully open or fully closed. Installation of a Gate Valve is independent of the flow direction.

Design Features

Gate valves designed in accordance with API-600, solid or parallel slide wedge/disc.
Gate valves option in accordance with API-603 only for stainless steel & nickel alloys.
Standard manufacturing wedge from 2” to 4” solid wedge design; 5” and up flexible wedge.
Gate and Globe valves for Cryogenic service with gas column in accordance with BS-6364 upon request.
Flange dimensions in accordance with ASME B16.5 for valves up to 24” nominal diameter.
Hand-wheel, impact Hand-wheel, Chain-wheel, Gear operation, Electric, Pneumatic or Hydraulic Actuation as per Customer requirements.
By-Pass, Lantern rings, grease injectors, special connections, etc. Low fugitive emissions control.
NACE Service either MR-01-75 or MR-01-03. Test in accordance with API-598.

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Cast Steel Globe Valves

The Globe Valves are primarly used to modulate or regulate the volume of the flow.

A Globe Valve is not recommended when a continuous full flow of fluid is required due to the high pressure drop inherent to the design of a Globe Valve.

This type of valve should always be installed so the flow intake enters through the base of the valve seat. The valve has an arrow stamped on the body to indicate the preferred direction on flow.

Globe Valves may be used with fluids containing particles in suspension.

Design Features

Globe valves design in accordance with ASME B16.34
Globe valves option in accordance with API-603 only for stainless steel & nickel alloys.
Gate & globe valves for cryogenic service with gas column in accordance with BS-6364 upon request
Flange dimensions in accordance with ASME B16.5 for valves up to 24" nominal diameter
Handwheel, handwheel impact, chain wheel, gear operation, electric, pneumatic or hyydraulic actuation as per customer requirements
By-pass, lantern rings, grease injectors, special connections, etc.
Low fugitive emissions control
NACE service either MR-01-75 or MR-01-03.
Test in accordance with API-598
Stop check design option available

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Cast Steel Check Valves

Check valves are generally used to protect pumps or similar equipment, allowing the flow only in one direction and preventing flow reversal due to back pressure.The swing type check valves are designed to produce a low pressure drop in the pipeline. This design provides a tighht seal as well as a fast reaction to the closure.

Design Features

Swing check valves option in accordance with API-603 only for stainless steel & Nickel alloys.
Swing check valves for cryogenic service in accordance with BS-6364.
Flange dimensions in accordance with ASME B16.5 for valves up to 24” nominal diameter.
Damper & Counter weight options.
Drain connections as per Customer request.
Low fugitive emissions control.
NACE service either MR-01-75 or MR-01-03.

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Product Range

TYPE	SIZE	PRESSURE CLASS AS PER ASME B16.34	ENDS
Gate	2” to 72”	150, 300, 600, 900, 1500 & 2500 #	RF, RTJ or BW
Globe	2” to 20”	150, 300, 600, 900, 1500 & 2500 #	RF, RTJ or BW
Swing Check	2” to 48”	150, 300, 600, 900, 1500 & 2500 #	RF, RTJ or BW