Reverse Flow Check Valves*



Packard International Products

Product Line Acquired from OMSCO

Precision Machining Capabilities



Phone:   281-399-8771
Fax:   281-399-8773
sales@packardint.com



When ordering this product please specify ALL of the following:

(1) size and working pressure

(2) H2S service, if required

(3) floor stabbing release requirement

See chart below for complete information.

* Packard International is now the sole manufacturer of this product design acquired from OMSCO.

Valve Overview

Reverse flow check valves are the most reliable, first line of defense in protecting your swivel, standpipe, pumps and crew from the dangers of drill string kicks. It is specifically designed to be run through most BOP stacks as an integral part of the string when drilling through transitional zones or anytime a kick might be anticipated.

The unique top vent on the valve permits a partial flow-by of drilling fluids to make emergency stabbing faster and safer. The body of the valve is made from AISI 4145H modified fully heat treated steel alloy with a dart and seat specially designed to minimize the effects of mud cutting and washouts.

Features and Benefits
  • Specifically designed to be run through most BOP stacks as an integral part of the string

  • Unique top vent permits partial flow-by of drilling fluids for faster and safer emergency stabbing

  • Dart and seat specially designed to minimize effects of mud cutting and washout

  • Can be run as deep as necessary in controlling a kick

  • Safety both on the rig floor and down hole

  • Can be supplied with parts suitable for H2S service
Maintenance

These reverse flow check valves are designed for even the harshest drilling conditions; however, it is suggested that parts most subject to wear and tear be replaced regularly.

For complete maintenance instructions and valve specifications, please phone 281-399-8771, e-mail support@packardint.com, or click the link below to download a PDF.

Download a PDF of complete Maintenance Instructions


Reverse Flow Check Valve Specifications
Complete Valve IB475000 IB475500 IB525000 IB525500 IB625000 IB637500 IB650001 IB650000
Size & Working Pressure 3-1/2" IF
10,000 psi
3-1/2" IF
15,000 psi
4" FH
10,000 psi
4" FH
15,000 psi
4-1/2" XH
10,000 psi
4-1/2" IF
10,000 psi
4-1/2" XH
10,000 psi
4-1/2" IF
10,000 psi
Approx. Weight (lb) Complete
with Release Assembly
93 93 115 115 151 169 178 178
OD (in.) 4-3/4 4-3/4 5-1/4 5-1/4 6-1/4 6-3/8 6-1/2 6-1/2
ID (in.) 2 2 2 2 2-1/4 2-1/4 2-1/4 2-1/4
Length (in.) 26-1/2 26-1/2 26-1/2 26-1/2 27-1/2 27-1/2 27-1/2 27-1/2
Rod Lock Screw (1) IB403000 IB403000 IB403000 IB403000 IB403000 IB403000 IB403000 IB403000
Release Rod (1) IB404000 IB404000 IB404000 IB404000 IB404000 IB404000 IB404000 IB404000
Release Cap (1) IB305000 IB305000 IB306000 IB306000 IB405000 IB406000 IB405000 IB406000
Upper Sub (1) IB307000 IB307000 IB308000 IB308000 IB407000 IB408000 IB417000 IB418000
Dart Seat (1) IB309A00 IB309A00 IB309A00 IB309A00 IB419000 IB419000 IB419000 IB419000
Dart O Ring (1) IB310000 IB310000 IB310000 IB310000 IB410000 IB410000 IB410000 IB410000
Dart Valve (1) IB311001 IB311001 IB311001 IB311001 IB421001 IB421001 IB421001 IB421001
Spring (1) IB312000 IB312A00 IB312000 IB312A00 IB412000 IB412000 IB412000 IB412000
Lower Sub (1) IB313000 IB313000 IB314000 IB314000 IB413000 IB414000 IB423000 IB424000