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880 Ball Valve
Brand: McCanna-MarpacThe MARPAC Unipac 880 and McCANNA M-802 Ball Valves provide a quality, low-cost solution to the needs of high-pressure applications requiring fire-safe valves.
In its standard configuration, the Unipac 880, utilizing the MARPAC FIRE-GARD valve design, was tested and conforms to API-607 fire-safe standards for ¾" through 2" sizes.
This design includes flexible graphite stem packing, and secondary metal-to-metal seating, which provides safe operation of the valve after a fire.
The Unipac 880 Ball Valve is rated for positive, bubble tight shutoff to 2,000 psig, offering excellent performance in applications from -45°C to 232°C (-50°F to 450°F).
Features- Low operating torque provided by specially designed RTFE seats. Notches on the outside diameter equalize pressure on both sides of the upstream seat
- Safety is ensured by anti-blowout stem design
- Reliable stem seal results from superior stem packing arrangement with RTFE thrust washer as a primary seal and secondary adjustable stem seal of flexible graphite
- Automatic compensation for stem seal wear with live-loaded stem seal. 2000 psig in all sizes using RTFE seats
- Body leakage virtually eliminated with unibody design
- Product quality ensured through use of investment cast carbon or stainless steel body
- Round handle standard on ¼" to 1" sizes and optional on 1¼" to 2" sizes. Lever handles on ¼" to 1" option available
- Threaded ends to ASME 1.20.1
Specifications
Brand
Approvals & Certifications
- API-607
Ball Material
- 316 Stainless Steel
Enclosure, Body Material
- Carbon Steel WCB
- Stainless Steel CF8M
Flow Capacity
- 3 to 81 Cv
Gland Material
- 316 Stainless Steel
Handle Assembly Material
- Plastic-Coated
- Steel
- Zinc-Plated
Materials of Construction
- End Adapter: 316 Stainless Steel
- End Adapter: Carbon Steel AISI 1020
- Locking Pin: 304 Stainless Steel
- Thrust Washer: RTFE (15 % Glass-Filled PTFE)
NPT Connection
- 1” NPT Female
- 1/2” NPT Female
- 1/4” NPT Female
- 1-1/2” NPT Female
- 1-1/4” NPT Female
- 2” NPT Female
- 3/4” NPT Female
- 3/8” NPT Female
Nut & Bolt Material
- Stem Nuts: Carbon Steel
- Stem Nuts: Zinc-Plated
Operating Pressure
- psi: 2,000 (kPa: 13,790, bar: 137.9)
Operating Temperature
- -45° to 232° C (-50° to 450° C)
Packing Material
- Flexible Graphite
Seat / Seal Material
- Seal: Fire Gard Flexible Graphite
- Seat Retainer: 1020 Carbon Steel
- Seat Retainer: 316 Stainless Steel
- Seat: RTFE (15 % Glass-Filled PTFE)
Size
- Valve: 1/4 to 2” (6 to 50 mm)
Spring Material
- Belleville Spring Washers: 302 Stainless Steel
Stem Material
- 316 Stainless Steel
Trim Material
- 316 Stainless Steel
- High Pressure Applications