V574 - V575 - V576

Product catalog summary

Introduction
This document is the exclusive property of SAPAG VALVES, a French industrial valve manufacturer. It provides technical specifications and guidelines for various needle valves, including models V574, V575, V576, V595, and V596.

Specifications

Needle Valves: Models V574, V575, and V576 are available with butt weld, threaded gas or NPT, and screwed PN16 flanges respectively, for diameters ranging from DN8 to DN25.
Needle Valves with Tip: Models V595 and V596 are available with threaded gas or NPT and screwed PN16 flanges respectively, for diameters ranging from DN8 to DN15.
All valves are made from forged and rolled low carbon stainless steel, ensuring pore-free construction and excellent corrosion resistance.
Valves feature argon welding, removable non-rotating needle valves, and embedded head gaskets for high-pressure tightness.

Performance and Technology

Valves are designed to withstand high pressures and temperatures, with specific limits depending on the pressure/temperature ratio and fluid type.
Features include a non-rotating rising stem, external threading to avoid fluid contact, and a highly secure design.

Applications

Suitable for heavy-duty conditions involving corrosive chemicals, and for use with liquids, steam, gas, and oil in process circuits and utilities.
Ideal where safety and reliability are critical.

Design Standards

Compliant with NF EN 13709 and tightness standards NF EN 12266-1 and ISO 5208.

Connection Options

Available with flanges, threaded gas or NPT, and BW or SW connections.

Optional Features

Double heating jacket and welded finned head for high temperatures.

Materials and Parts List

Components are primarily made from stainless steel 1.4404 - EN 10272, with PTFE used for gaskets and packing.
Other materials are available upon request.

Pressure/Temperature Curves
The document includes pressure/temperature curves for different service limits, highlighting the operational range of the valves.

Catalog excerpts

SAPAG-0033-ENG-2302 The maximum pressures and temperatures depend on the pressure / temperature ratio and type of fluid. Performance Temperature,°C -196 °C Pressure, bar Diameter, mm DN8 Needle valve • V574: Butt weld (DN8 to 25) • V575: Threaded gas or NPT (DN8 to 25) • V576: Screwed PN16 flanges (DN10 to 25) V595 - V596 NEEDLE VALVE WITH TIP Needle valve with tip • V595: Threaded gas or NPT (DN8 to 15) • V596: Screwed PN16 flanges (DN15) Completely made of forged and rolled low carbon stainless steel (thus pore-free). Argon welding. Removable, non-rotating needle valve, providing perfect highpressure tightness. Embedded head gasket and wear-resistant PTFE cable gland packing. Guaranteed long-lasting tightness. Non-rotating rising stem. Thread external to fluid, yoke sleeve processed to avoid seizing. Screwed head. Cable gland protected when fully open. Excellent high-pressure resistance. Highly secure use. Unmatched corrosion resistance. Compact design. Valve compliant with heavy duty working conditions using corrosive chemicals. Liquid, steam, gas and oil for process circuit and utilities (operating fluid). Wherever safety and reliability are critically important. Design standard NF EN 13709 Tightness compliant with rate A of NF EN 12266-1, ISO 5208 standards Double heating jacket. Same design as V501 gate valves. Welded finned head for high temperatures. Welded head. FOLLOW-UP & ADVICE SAPAG VALVES FRENCH INDUSTRIAL VALVE MANUFACTURER 2 Rue du Marais 80400 Ham, FRANCE +33 (0)3 23 81 43 00 [email protected] w w w. s a p a g - v a l v e s . c o m This document is the exclusive property of SAPAG VALVES. The use, reproduction, communication to third parties of this document must be subject to prior written authorization from us. The information contained

Open the catalog to page 1

Parts List Name Needle axis Body seal Collar washer Friction washer Spacing washer Description Rep Qté 1 1 Corps 2 1 Pointeau Pressure / Temperature Curves 3 1 Axe de pointeau 4 1 Tige 5 1 Joint de corps 6 1 Tête 7 1 Ecrou de raccordement 8 1 Garniture 9 1 Fouloir gaskets Graphite 10 1 Rondelle épaulée and packing 11 1 Ecrou de fouloir Stellite needle 12 2 Rondelle de friction 13 1 Noix 14 1 Rondelle entretoise 15 1 Volant 16 1 Ecrou de volant 17 2 Embout lisse mâle a souder 18 2 Ecrou de raccordement 19 2 Bride * Autres matériaux sur demande PVI se réserve le droit de changer le contenu de ce...

Open the catalog to page 2

V574 - V575 - V576

V574 - V575 - V576

Catalog excerpts

All Sapag Valves catalogs and technical brochures