The internal ball valve is an angled valve design which is completely recessed into the tank.  The internal valve permits the absolute minimum skid protection of any bottom outlet valve.  The 4" internal ball valve is rated for a maximum pressure of 250 psi and a maximum temperature of 400°F. Note:  Handles are not included with a 4" Internal valve assemblies.  See Replacement parts list or accessories section for handle part number.

 * 4" FullPort valves have a minimum port opening of 3.75" compared to an ordinary standard port opening of 3.00"

Valve Ordering Part Numbers

(O-RING MATERIAL)

DESCRIPTION

BODY / RETAINTER
MATERIAL

MODEL#

HANDLE
OPERATION

BROWN

BLACK

PURPLE

WHITE

AAR APPROVAL

4" Internal Ball Valve

CS

4" UFIRA 2236 TT

CW

501631-01

501631-02

501631-03

501631-04

E-077036

CCW

079358-01

079358-05

079358-03

079358-04

E-077036

316 SS

4" UFIRA 3636 TT

CW

501642-01

501642-02

501642-03

501642-04

E-077036

CCW

080395-01

080395-06

080395-03

080395-07

E-077036

CW=Handle rotates clockwise to close
CCW=Handle rotates counter-clockwise to close
Handle rotation can be reversed by rotating the cam stop.