Mark One | N2X Process Solutions

The Valtek Mark One globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast, and inexpensive maintenance. In standard plug and seat single-stage configuration, the base design provides various design advantages over conventional cage-guided designs. With the ability to be fitted with severe service trims for cavitation, noise, and erosion applications, the Mark One is the most versatile control valve platform.

Brand: Valtek

Category: Linear Control Valves

Valve Size	1/2" to 36"
Pressure Class Standard	ASME B16.34
Pressure Class Range	Class 150, 300, 600, 900, 1500, 2500, 4500
Body	Globe, Angle, Three-Way, Steam Jacketed
End Connections	Separable Flange, Integral Flange, Screwed (NPT), Socket Weld, Butt Weld, Grayloc
Face-to-Face Standard	ANSI ISA S75.20, S75.03, S75.16, S75.12, S75.15
Bonnet	Standard, Extended, Cold Box Extended, Cryogenic, Bellows Seal
Packing	Standard, Twin Seal, Vacuum Seal, Environment Fugitive Emissions, Live-Loaded
Guiding	Double Top Stem Internal to Bonnet
Trim	Plug & Clamped Seat, Special Cage & Stack Designs
Trim Characteristics	Equal Percentage, Linear, Quick-Open
Seating	Metal-to-Metal & Soft
Shut-Off Classification	ANSI FCI 70-2 Class IV, V, VI

Double Top Stem Guiding moves the critical function of assuring alignment of the trim out of the flow path

Single Piece Plug & Stem assures integrity of the assembly, avoiding side load fracturing

Oversized Stem provides greater durability for high-pressure applications

Plug Contours provide flow characteristics with higher rangeability than cage designs

Floating Seat is clamped in-place after alignment to ensure tight-shutoff and easy service

Seat Retainer (Cage) is not a throttling component, allowing for more cost effective material selection

Bolted Bonnet eliminates service issues related to threaded designs

Severe Service Trim options can easily be designed or retro-fitted into standard trim valve

Certifications	Canadian Registration Number (CRN)
	Safety Integrity Level (SIL) 3 Capable
	PED Directive 97/23/EC
Design Standards	ASME B16.5 – Pipe Flanges & Flanged Fittings
	ASME B16.9 – Factory-Made Wrought Buttwelding Fittings
	ASME B16.10 – Face to Face & End Dimensions of Valves
	ASME B16.11 – Forged Fittings, Socket-Welding & Threaded
	ASME B16.25 – Buttwelding Ends
	ASME B16.34 – Valve Flanged, Threaded, and Welding End
	ASME SA Materials
	ASTM A Materials
Quality	IS0 9001:2008
	ATEX QAN
	IECEX QAR