Ametek XR-81 All-Welded Process Gauge and Diaphragm Seal

Ametek XR-81 All-Welded Process Gauge and Diaphragm Seal

Ametek Gauges and Seals from Automation Service

XR-81 All-Welded Process Gauge and Diaphragm Seal

Ametek - U.S. Gauge

XR-81 All-Welded Process Gauge and Diaphragm Seal

Diaphragm Seals / Capillaries, Gauges

Description - AMETEK’s XR-Series All-welded Gauge and Seal offers customers a lower cost alternative to an individual gauge and diaphragm seal with the added benefit of a reduction in potential leaks and double containment.

The high quality, rugged SOLFRUNT 1981 (SST internals) or the SOLFRUNT 1986 (Monel internals) gauge is mounted and welded onto the M&G XR diaphragm seal. XR-Series all-welded systems are compliant to NACE MR-01-03 and MR-01-75 requirements. The designed operating pressure is 3000 psi at 100°F and has a maximum static pressure rating of 5000 psi.

The standard XR diaphragm seal has a 4:1 safety ratio and is available with either 316L SST or Monel wetted parts, and has an 1/2” NPT male, 1/4” male, 1/2” female, or 1/4” female bottom for the process connection. Other connections and materials are available, such as Hastelloy® C body and diaphragm or Tantalum diaphragm.


  • All-welded seal-to-gauge design and seamless Bourdon tube provides fewer leak paths than competitive models

  • Tamper resistant design

  • Compact size to fit into applications with space restrictions


  • Chemical and petrochemical processing plants

  • Petrochemical refineries

  • General processing such as food and pharmaceutical



All remanufactured products:

  • 2-3 Weeks Standard Delivery
  • 2-5 Days Expedited Delivery
  • Need it sooner? call us today at 1-800-325-4808


– U.S. Gauge products:

  • 4-8 weeks

Rotork® electric actuators

  • Please contact us for delivery


All remanufactured products are covered by our 2 year service warranty. Please click here to view full warranty.

Ametek® – U.S. Gauge Products are covered by the original manufacturer’s warranty. Please click here for warranty information.

Rotork® Electric Actuators – please contact us for warranty information.

New Foxboro® products are covered by a 1 year service warranty by the original manufacturer.