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V1-3 article


Investment in Performance

“Small package performance” pays off in low-pressure drain applications with minimal maintenance, zero leakage guarantee and long service life.  The investment-cast V1-3 offers fit-for-application sizing and ASME/ANSI pressure class – and it’s available in both full and reduced-port models.  Just as important, the proprietary RAM® hard coating process increases the valve ball and seat surface hardness by a significant margin – making it impervious to erosion and abrasion

Key Benefits

  • Fit-for-purpose sizes and end connections: ½ to 2 inch, butt-weld or socket-weld
  • High-temperature, Low-pressure applicability: Models available for ASME/ANSI pressure classes 150 to 600
  • Easy marriage to actuators for full automation in all applicable operating regimes
  • Live loaded packing delivers long time-between-service intervals
  • Proven safety with blowout-proof stem design

Design Features

  1. Integral Metal Seat.. With our patented and Rocket Applied Metallic (RAM) coatings, the integral seat in ValvTechnologies’ rotary operating valves are resistant from the attack of abrasive magnetite or ferrous oxides in the steam flow.
  2. Body Seal Ring. ValvTechnologies employs a field proven seal ring technology to ensure sealing under all operating conditions, up to 1400o F. The body seal ring is loaded at a pressure higher than 20,000 psi. In addition, valves sized 3 inch and above contain a secondary Grafoil seal to further guarantee reliability
  3. Patented Coating Process. The sealing surfaces are overlaid with Tungsten or Chromium Carbide using our exclusive RAM® process. These surfaces have a hardness of 68 - 72 Rc to allow long periods of operation in the most severe conditions.
  4. Live Loaded Gland Area. The V1 Series gland packing design features a four stud, live-loaded assembly designed for heavy industrial applications. The packing material is high purity Grafoil® surrounded by Carbon Fiber / Inconel anti-extrusion rings. The six Bellville springs (per stud) provide constant load pressure through extreme thermal shocks and prevent wear leaks in high cycle service.
  5. Blow-out Proof Stem design utilizes a one piece, hard-faced, blow-out proof stem that is inserted through the inside of the body cavity eliminating the possibility of blow-out through the gland area.


Technical Data

 Sizes  ½ - 2 inch
Pressure Classes  ASME / ANSI Class 150 - 600
Materials of Construction  Carbon Steel (A216 WCB) - standard Alloy Steel (A217 WC9) - standard Stainless Steel (A351 CF8M) - standard Duplex Steel Exotic Alloys Other materials available upon request
 In Compliance ASME B16.34 PED N & NPT – Nuclear Authorized
 End Connections Socketweld – standard Buttweld – standard Other end connections available upon request
 Options Oval hand wheel Actuator mounting Lock-out device


V1-1 article
V1-2 article
V1-4 article

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