Product Description

Questtec Solutions Type SV-1600 valves are designed specifically for use with water level gauges in steam/water service. The angled flow path compactly facilitates installation of the level gauge bringing the assembly connection point to the side. The valve has a reciprocating stem that does not rotate, maximizing packing life and preventing galling of the valve seat. The lower valve is normally supplied with a blowdown/drain connection.

As with all Steam-Trac products, integrity of design and maximum service life are the foremost considerations.The valve body and yoke are fabricated from forged carbon steel. The stem and seat are 416 SS (13 CR), and are both replaceable. Optional closing action is available: 2-1/2 turn (plain closing), or 1/4 turn (quick closing.) The valve can be supplied with handwheels, levers (1/4 turn, only) or chain wheels.

For connection to the gauge, Questtec recommends either 1/2” Uniflex unions or flanges. The Uniflex gasketed union offers a high integrity seal, and virtually eliminates nuisance leakage typically associated with stuffing box connections.

Although available, Questtec Solutions does not recommend using a stuffing box connection, as is commonly supplied by our competitors. Although they allow flexible orientation and are very forgiving dimensionally, they are normally fabricated from 0.75” OD Tube, which is actually smaller than the minimum 1/2 IPS* as required by ASME Section 1, PG 60.

Drum or Water Column Connections are normally 3/4” flanged, 3/4” male IPS, although additional options are available.

* 1/2 IPS is has an actual OD of 0.84”. This rarely realized discrepancy has resulted in many surprise inspection findings

Product Features

  • Outside Screw and Yoke Design
  • 90º Angle Flow Path
  • Bolted Bonnet
  • Offset Valve Body
  • Back Seating Stem
  • Reciprocating Stem

Product Specifications

Vessel Connection Sizes
  • ¾”
  • 1”
  • 1.5”
  • 2”
Vessel Connection Type
  • Male NPT (3/4” ONLY)
  • Female NPT
  • Pipe End (Male SW)
  • Socket Weld
  • Flanged
Gauge Connection Sizes
  • ½”
  • ¾”
Gauge Connection Type
  • Female NPT
  • Uniflex Gasketed Union (1/2” ONLY)
  • Socket Weld (3/4” ONLY)
  • Flanged
  • Stuffing Box Nipple (3/4” ONLY)
Drain Connection Size
  • ½”
  • ¾”
Drain Connection Type
  • Female NPT
  • Socket Weld
  • Flanged
Optional Features
  • Levers
  • Quick Closing
  • Lock Open
  • Chainwheel
  • Ball Checks

Compatible Products


200-10 Steam-Trac SV-1600 Valve Cut Sheet
Data Sheet
210-03 SV-1600 Steam Valve Model Code Guide
Data Sheet, Steam-Trac
230-04 SV-1600 Seat Yoke Assembly Replacement IOM