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Service Valve

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User's Manual in PDF

Three different temperature rated ball-type service valves are available for use with Metal Samples retrieval tools: standard, low and high temperature. The female threads on this valve are industry-standard ACME threads and may be used with any Metal Samples Corrosion Monitoring Systems high pressure access fitting as well as any other 2" access fitting. The valves have a bleed valve located on the non-process side of the ball. This bleed valve may be used to drain the retrieval tool, sample process, or be used as a path for back-pressuring. All valves are NACE MR0175 compliant for use in sour service, factory pressure tested for a working pressure of 6000 psi W.O.G..

The service valve is a portable valve that is used in conjunction with a retrieval tool. The service valve is threaded onto an access fitting in preparation for retrieving a plug. Next, the retrieval tool is attached to the service valve. System pressure is then equalized in the retrieval tool by unseating the plug.

Metal Samples standard service valve is constructed from A350LF2. We also offer a severe service option in 17-4PH.  Please contact us for additional details.

Service Valve
Figure 1. Service Valve

Occasionally deposit buildup in access fitting bodies does not allow for pressure equalization through the plug. If this occurs, the retrieval tool can be back pressured by use of a back-pressure kit (P/N - HA104000). Once pressure equalization has occurred, the plug is removed and the valve is shut. Finally, the retrieval tool is removed from the valve allowing access to the plug and its accessory. A Blanking Cap/Plug Assembly (P/N - PS5612) may be installed on the valve as an additional safety measure, if required.

Service valves are supplied with a durable lightweight field service case, extension bar, tool kit, and one O-ring seal kit.

Physical Data
Valve weight: 45 lbs.
Case dimensions: 12 3/4" x 13 3/4" x 20 1/4"
Case weight: 25 lbs.
Total weight: 70 lbs.


  • NACE MR0175
  • Pressure rating - 6000 PSI

Ordering Information

Service Valve
Part # Description
HA101250 Standard Temperature Valve
-15°F to 200°F (-26°C to 93°C)
HA101251 Low Temperature Valve
-30°F to 200°F (-34°C to 93°C)
HA101252 High Temperature Valve
-15°F to 400°F (-34°C to 204°C)


Repair Parts
Part # Description
KR1009834 Standard Temp. Seal Kit
KR1010 Standard Temp. Repair Kit
HA700604834 Standard / High Temp. Female End O-Ring
HA700604370 Low Temp. Female End O-Ring
PR6359158 316SS 6000 psi Bleed Valve


Optional/Spare Tools and Accessories
Part # Description
PR6961 Socket 19MM 12 Point 1/2" Drive Deep Wall*
PR6962 8MM Allen Wrench*
PR6963 10MM Allen Wrench*
PR6358 Brass Hammer**
PS5612 Blanking Cap/Plug Assembly

*1 each 19mm socket, 8mm allen wrench, and 10mm allen wrench supplied with each service valve.
**Brass hammer supplied with retrieval tool.

Figure 2. Service Valve Part Diagram
Item Description Low Temp
High Temp
1* Valve Face O-Ring NBR (Buna-N) FKM (Viton) FKM (Viton) 1
2* Lower Flange
NBR (Buna-N) FKM (Viton) FKM (Viton) 1
3* Ball Seat POM (Delrin/Celcon) POM (Delrin/Celcon) PEEK 2
4* Bonnet O-Ring NBR (Buna-N) FKM (Viton) FKM (Viton) 1
5* "L" Seal NBR (Buna-N) FKM (Viton) FKM (Viton) 2
6** Seat Carrier 4130 CS 4130 CS 4130 CS 2
7* Stem Seal Polymyte/NBR (Buna-N) Polymyte/
FKM (Viton)
PTFE / Elgiloy 1
8* Seal Back-Up Ring PTFE (Teflon) PTFE (Teflon) PTFE (Teflon) 1
9 Bleed Valve
6000 PSI
316 SS 316 SS 316 SS 1
10** Valve Ball 17-4 PH SS 17-4 PH SS 17-4 PH SS 1

Table 1. Service Valve Part Details

* Parts included in Seal Kit / Repair Kit.
(Top face O-ring - PR6303834 - used with older valves is also included in Seal Kit.)
** Parts included in Repair Kit.

Optional seal materials for higher and lower temperature ratings are available. Contact Metal Samples for details.

Teflon® is a registered trademark of DuPont.
Viton® is a registered trademark of DuPont Dow Elastomers.

Contact Metal Samples Company sales department for pricing and availability.
Metal Samples Company

P.O. Box 8
152 Metal Samples Rd.
Munford, AL 36268

: (256) 358-4202
Fax: (256) 358-4515

E-mail: msc@alspi.com

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Metal Samples Company is a division of Alabama Specialty Products, Inc. - Copyright © 2024