Orifice Fittings

Single Chamber Fittings

Single Chamber Fittings are the most widely accepted means for flow measurement of gas and other hydrocarbons in the oil, gas & petrochemical industry.
Sure Shot® single chamber fitting provides both cost and time saving opportunities to the operator.

Single Chamber Features:

• One piece body allows for quick, inexpensive orifice plate changes without the time consuming operational steps associated with Orifice Flange Union
• Metal-to-metal seat against the downstream face significantly reduces seal ring compression and downstream shift of orifice plate
• Protected positive orifice plate seal design extends service life
• Meets or exceeds all industry specifications (AGA3/API14.3)
• 2” thru 6” ANSI Classes 150-600. For higher ratings consult factory

Single Chamber Fitting Applications:

• Gas Gathering
• Compressor Stations
• Onshore – Offshore Production
• Coal-Seam Gas Measurement
• Gas Distribution
• Gas Transmission
• Process Gas Plant

Fitting Pressure Ratings:

• ANSI Class 150 (285 PSI CWP)
• ANSI Class 300 (740 PSI CWP)
• ANSI Class 600 (1480 PSI CWP)

Standard Materials of Construction:

• Body Material – A-216 WCB/WCC - Consult factory for any other fitting body material
• Flange Ratings – ANSI Class 150 to ANSI Class 600
• Fitting End Connections – F x W
• Raised Face Flange is standard for ANSI Class 150 to ANSI Class 600

Conforms to the following industry standards:

• AGA 3/API 14.3, ISO-5167
• ANSI B31.3, MSS SP-55, ANSI B16.5
• Fittings conform to NACE MR-01-75-2000

Operating Range:

• Sizes 2” thru 6” ANSI Class 150, 300, & 600
• Temperature -20° F to 275° F (-29° C. to 135° C.)

Quality Check:

• Hydrostatic test 1-1/2 times rated CWP.
• Tested for positive plate seal, pressure tap integrity, seal protrusion and eccentricity

Dual Chamber Orifice Fitting

Sure Shot® Dual Chamber Orifice fittings fully conform to the latest AGA 3/API 14.3 stringent requirements. They require no added uncertainty and provide accurate performance over the orifice plate beta ratio range from 0.1 to 0.75 within 0.5% flow accuracy to theoretical value.

Dual Chamber Features:

• Two-piece body allows fast, safe inexpensive orifice plate change under pressure
• Protected positive orifice plate seal design extends service life
• Meets or exceeds all industry specifications (AGA3/API 14.3)
• 2”-16” ANSI Classes 150-600. For higher ratings consult factory
• Few moving parts, positive sealing with low maintenance
• Unique safety lock helps to prevent accidental opening under pressure while removing the orifice plate, indicates proper carrier location, and provides precise plug operation positioning

Fitting Pressure Ratings:

• ANSI Class 150 (285 PSI CWP)
• ANSI Class 300 (740 PSI CWP)
• ANSI Class 600 (1480 PSI CWP)

Standard Materials of Construction:

• Body Material – A-216 WCB / WCC
• Flange Ratings – ANSI Class 150 to ANSI Class 600 inclusive.
• Fitting End Connections – F x W, F x F ?Note: RTJ Flange facing available upon request. Consult factory for any other fitting body material.

Conforms to the following industry standards:

• AGA 3/API 14.3, ISO-5167
• ANSI B31.3, MSS SP-55, ANSI B16.5
• Fittings available for NACE MR-01-75-2000
• CRN Certified

Operating Range:

• Sizes 2” thru 16” ANSI Class 150, 300, & 600
• Temperature -20° F to 275° F (-29° C. to 135° C.)
• Schedule 40 and schedule 80 standard. Note: Consult factory for larger sizes and other operating conditions.

Quality Check:

• Hydrostatic test 1-1/2 times rated CWP.
• Tested for positive plate seal, pressure tap integrity, seal protrusion and eccentricity

Specifications:

Please download the Product Brochure PDF for more information.