Forty years of product knowledge brings you the best the market has to offer! Quest-Tec Solutions is a young company with a long lineage of quality, experience and care. The development and engineering of the liquid level gage and valve product lines began more than forty years ago.

Quest-Tec Offset Valves

 

TYPE 1S & 1U
SCREWED BONNETT
TYPE 3S & 3U
HEAVY DUTY OUTSIDE SCREW &YOKE
BONNET TYPE 2S & 2U
UNION REPLACEABLE SEAT
TYPE 7S & 7U
STANDARD OUTSIDE SCREW & YOKE

TYPE 1S & 1U
SCREWED BONNETT

Glass-Trac Type 1 & 2 Offset Gage Valves are available with screwed (S), union (U), (illustrated below) and tubular (T) gage connections (Page 15). Both 1 and 2 Valves are used with Reflex and Transparent Gages in working pressures up to 4000 psi and with Tubular Gages to their maximum rating. The Teflon packing ring is standard and used in services up to 450º F. For temperatures to 700º F, valves are fitted with special wire graphite packing. Both valves have stainless steel ball checks to shut off the flow automatically in case of gage glass breakage.

The “offset” feature permits easy cleaning of gages.

A floating tailpiece on Type 1 valves permits an overall vertical adjustment of 1/8” if the gage center-to-centers are not precisely located. Installation is quicker and gage strain is eliminated.

Type 2 Valves have an optional backseating stem allowing the packing to be changed without shutting down the vessel.

4000 psig CWP 6000 psig Test
¾” NPT Male Union Tank Connection
½” NPT Female Gage Connection
½” NPT Female Drain Connection

PRESSURE - TEMPERATURE RATING
Teflon Packing Wire-Graphite Packing
4000 psi 100º F 2950 psi 500º F
3730 psi 200º F 2700 psi 600º F
3470 psi 300º F 2430 psi 700º F
3200 psi 400º F    

*Item No. 13 has hole with 1/16 eccentricity for ± 1/8 maximum misalignment on the overall center-to-center. Note: Valve shown is for bottom left hand (or top right hand) location. Opposite hand is reversed. Valves are furnished in pairs of one bottom left hand and one top left hand.

Note: 316 SS wetted parts not available in Type 1 valves.

Type 1S
Weight per set approximately 10 Ibs. 6ozs.

Type 1U
Weight per set approximately 11 Ibs. 6 ozs.

[Back to Top of Page]


Type 2S
Weight per set approximately 11 Ibs. 6 ozs.

Type 2U
Weight per set approximately 12 Ibs. 6 ozs.

 

[Back to Top of Page]


 

TYPE 3S & 3U
HEAVY DUTY OUTSIDE SCREW &YOKE

4000 psig CWP 6000 psig Test
½”, ¾” (Std.) or 1” NPT or IPS Solid Shank Tank
Connection or Flanged Tank Connection
½” NPT Female Gage Connection
½” NPT Female Drain Connection

The Glass-Trac Type 3 Offset Gage Valve has the Outside Screw & Yoke design which prevents excessively hot and corrosive fluids from contracting stem threads, causing possible malfunction. The stem backs directly off the regrindable valve seat using the positive, non-rotating stem principle. The valve is offset for ease in gage cleaning and comes in both screwed (S) and a union (U) gage as standard. On special order, tubular (T) gage or other type connection can be supplied.

Type 3 valves are used with Reflex and Transparent Gages in working pressures up to 4000 psi.

The standard tank connection for Type 3 OS&Y Offset Gage valves is a ¾” NPT solid shank, with optional ½” and 1” NPT sizes. Ends beveled for welding also are available. Valve materials include forged carbon steel and 316 stainless steel.

A molded Teflon packing ring is standard at no extra cost in valves for services up to 450º F. For temperatures to 700º F, valves have wire-graphite packing. The Type 3 valve has stainless steel safety ball checks to shut off the flow automatically in case of gage glass breakage.

PRESSURE - TEMPERATURE RATING
Teflon Packing Wire-Graphite Packing
4000 psi 100º F 2950 psi 500º F
3730 psi 200º F 2700 psi 600º F
3470 psi 300º F 2430 psi 700º F
3200 psi 400º F    

TYPE 3S
Weight per set approximately 17 Ibs. 8 ozs.

TYPE 3U
Weight per set approximately 17 Ibs. 8ozs.

A Tubular Gage Connection is available on request. Optional Tank Connections shown on pages 26 and 27. Optional Gage Connections shown on page 25

 

[Back to Top of Page]


 

TYPE 7S & 7U
STANDARD OUTSIDE SCREW & YOKE

The Glass-Trac Type 7 Offset Gage Valve features the Outside Screw & Yoke (OS&Y) design which prevents excessively hot and corrosive fluids from contacting stem threads. The stem uses the positive non-rotating stem principle and backs directly off the regrindable seat. This valve is offset for ease in gage cleaning and is available in screwed (S) and union (U) gage connections. The Type 7 Valve also has a backseating stem as a standard feature. Stainless steel ball checks are available upon request.

1440 psig CWP, 2160 psig Test (600 Ibs. Class)
¾” NPT Male Tank Connection
½” NPT Female Union Gage Connection

PRESSURE - TEMPERATURE RATING
Teflon Packing Wire-Graphite Packing
1440 psi 100º F 1250 psi 500º F
1400 psi 200º F 1110 psi 600º F
1365 psi 300º F 1065 psi 700º F
1330 psi 400º F    

NOTE: Valve shown is for bottom left hand (or top right hand) location. Opposite and is reversed. Valves are furnished in pairs of one bottom left hand and one top left hand.

A Tubular Gage Connection is available on request. Optional Gage Connections shown on page 25. Optional Tank Connections shown on pages 26 and 27. A Ball Check Valve is available on request.

 

[Back to Top of Page]


Document Number Description File Size Download
Product Bulletins
100-00 Glass-Trac Liquid Level Gages and Valves 6554kb Download
100-01 Tubular Gages and Valves 644kb Download
100-02 Glass-Trac Model 1TC Tubular Gage Valves 159kb Download
Technical Documents
110-00 Liquid Level Gage Specifying Guide 1587kb Download
120-01 Standard Low Pressure Gage Drawing 306kb Download
120-02 Standard Medium Pressure Gage Drawing 138kb Download
120-03 Standard High Pressure Gage Drawing 220kb Download
120-05 Standard Large Chamber Gage Drawing 559kb Download
120-08 Weld Pad Drawing 127kb Download
120-11 Close Hookup -Low Pressure -1/2" Gage Drawing 100kb Download
120-12 Close Hookup -Low Pressure -3/4" Gage Drawing 100kb Download
120-13 Close Hookup -Medium Pressure -1/2" Gage Drawing 100kb Download
120-14 Close Hookup -Medium Pressure -3/4" Gage Drawing 99kb Download
120-15 Close Hookup -High Pressure -1/2" Gage Drawing 99kb Download
120-16 Close Hookup -High Pressure -3/4" Gage Drawing 99kb Download
120-17 Large Chamber -Close Hookup Gage Drawing 156kb Download
120-31 Heated/Cooled Externally Low Pressure Gage Drawing 276kb Download
120-32 Heated/Cooled Externally Medium Pressure Gage Drawing 304kb Download
120-33 Frost Prevention Low Pressure Gage Drawing 286kb Download
120-34 Frost Prevention Medium Pressure Gage Drawing 261kb Download
120-51 1S/1U Valves 415kb Download
120-52 2S/2U Valves 344kb Download
120-53 3S/3U Valves 759kb Download
120-54 4S/4U Valves 467kb Download
120-55 5S/5U Valves 573kb Download
120-56 7S/7U Valves 507kb Download
120-71 1TC Valves 72kb Download
120-72 1T/2T Valves 68kb Download
130-00 Installation and Operating Instructions 429kb Download
130-01 Maintenance Tip Sheet 345kb Download

[Back to Top of Page]

 

Copyright 2007 Quest-Tec. All Rights Reserved