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 Straight-Thru / OS & Y Valves

Type 4S & 4U
RENEWABLE INTERNAL STEM BONNET

Type 5S & 5U
STANDARD OUTSIDE SCREW & YOKE

Type 4S & 4U
RENEWABLE INTERNAL STEM BONNET

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

The Glass-Trac Type 4 Straight-Thru Gage Valve is available with screwed (S) and Union (U) gage connections and used with Reflex and Transparent Gages in working pressures up to 4000 psi. The “straight-thru” valve body design is popularly used with close hook-up (side connection) gages because the gage side connection centers and vessel centers can be identical. (With offset valves, vessel centers must be inside or outside side connection centers.) Type 4 Valves have a ¾” NPT Male Tank Connection as standard, with other connections available on order.

Type 4 Straight-Thru Gage Valves are stocked in carbon steel with stainless steel trims. A molded Teflon packing ring is standard at no extra cost in valves for services to 450ºF. For temperatures to 700º F, valves have wire-graphite packing. The Type 4 Valve has stainless steel ball checks to shut off the flow automatically in case of gage glass breakage. An optional back seating stem is available on request.

* 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.

A Tubular Gage Connection is available on request. Optional Tank Connections shown on pages 26 and 27. Optional Gage Connections shown on page 25. Quick Opening Valve model shown on page 24.

Type 5S & 5U
STANDARD OUTSIDE SCREW & YOKE

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

The Glass-Trac Type 5 Gage Valve has the Outside Screw & Yoke design which prevents excessively hot and corrosive
fluids from contacting stem threads, causing possible malfunction. The stem backs directly off the regrindable
valve seat using the positive, non-rotating stem principle. The valve has a “straight-thru” body design and, with an
optional bleed valve, can be used in a block and bleed application. Standard gage connections are screwed (S)
and union (U) but any other type connection can be supplied on special order.

The standard tank connection for Type 5 OS&Y Straight-Thru 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 with
stainless steel trims. A molded Teflon packing ring is standard at no extra cost in valves for services up to 450ºF.
For temperatures to 700ºF, valves have wire-graphite packing. The standard Type 5 Valve has a back seating
stem that allows the packing to be changed without shutting down the vessel. Stainless steel ball checks are available
upon request.

TYPE 5S
Weight per set approximately 12 Ibs.

TYPE 5U
Weight per set approximately 12 Ibs.

½” NPT & 1” NPT OPTIONAL.
½” IPS & 1” IPS BEVELED
ENDS OPTIONAL.

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

½” NPT & 1” NPT OPTIONAL.
½” IPS & 1” IPS BEVELED
ENDS OPTIONAL

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