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Bonomi 640LL Series Full Port High Performance 3-Pc. CS Ball Valve PEEK Seats Lock Lever ISO 5211 D Mnt. Pad FNPT
640LL
The Bonomi 640LL Full Port Carbon Steel High Performance ball valve, Class 900 Direct Mount NPT connection is a 3 piece 2 waywith PEEK ball Seats providing superior durability and sealing performance and Fire safe to API 607. It can handle pressures up to 2160 PSI for smaller sizes (1/4" to 2") . Grounded ball and stem.
The integrated ISO 5211 direct Mount pad and square stem allow for easy and direct automation with either electric or pneumatic actuators.
Available in in sizes 1/4" to 4". Also offered as packages comprised of valve and actuator (both pneumatic DA/SR and electric) factory optimized by size.
$125.05
$166.74
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Products are returnable if unused or defective. Need to call for an RMA authorization
The Bonomi series 640LL High Performance Class 900 ball valve features:
- Working Steam pressure to 250 psi
- Full port
- Class 900 sizes 1/4” to 2”, Class 600 sizes 2-1/2” to 4”
- Carbon steel-2200 psi (1/4” to 2”), 1480 psi (2-1/2” to 4”)
- A 3 piece Carbon Steel body valve
- Temperature range of -50° F to 550° F (-46° C to 288° C)
- ISO 5211 mounting pad/square stem
- Carbon Steel with PEEK ball seats
- Conforms to ANSI 16.34, ANSI B1.20.1 thread depths, NACE MR0175
- Fire safe to API 607
- Grounded ball and stem
- Standard Latch locking handle
- FNPT ends
Carbon Steel Series (PEEK seats)
- 640LL - NPT
- 641LL - SW
- 642LL - BW
Stainless Steel Series (PEEK seats)
- 740LL - NPT
- 741LL - SW
- 742LL - BW
This ball valve is also available in SW (641LL Socket Weld) and BW (642LL Butt Weld).
Summary Specifications (Please see below for full specs.)
Size 1/4" 3/8" 1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4" ØE ISO 5211 F03 F03 F03 F04 F04 F05 F05 F07 F07 F10 F10 ØF ISO 5211 F04 F04 F04 F05 F05 F07 F07 F10 F10 F12 F12 Torque (lbs.) 71 71 107 133 160 222 416 736 1461 2213 3368 Weight (lbs.) 1.5 1.5 2.2 3.8 5.6 7 11 22 32 44 87 Drawings and Detailed Valve Specifications
Please refer to the table below for specification. Click on the image below to expand
- 640LL
Data sheet
- Valve Type
- Ball Valve
- Valve Size
- .5 (1/2") .25 (1/4") .75 ( 3/4") .125 (1/8") 1" 1.5 (1 1/2") 1.25 (1 1/4") 2" 2.5 (2 1/2") 3" 4"
- Valve Temperature Range
- -50° to 550° F (°C -46 to 288)
- Valve Body Material
- Carbon Steel
- Valve Connection
- FNPT
- Valve Working Steam PSI
- 250 PSI
- Valve PSI
- 1440 (2 1/2" - 4") 2160 (1/4" -2")
- Valve Fire Rating
- Fire safe to API 607
- Valve Body Type
- 3 Pieces
- Valve Operation
- Manual
- Valve Seat
- PEEK
- Criteria
John B.
Reviewed on April 24, 2026Everything fits perfectly, no issues yet. Has been installed for almost a year without any problems. Would definitely recommend.
Quality Ease of installation Performance Would purchase Again Was this review helpful? 2 This review was helpful 0 This review was not helpful
The Bonomi 640LL Full Port Carbon Steel High Performance ball valve, Class 900 Direct Mount NPT connection is a 3 piece 2 waywith PEEK ball Seats providing superior durability and sealing performance and Fire safe to API 607. It can handle pressures up to 2160 PSI for smaller sizes (1/4" to 2") . Grounded ball and stem.
The integrated ISO 5211 direct Mount pad and square stem allow for easy and direct automation with either electric or pneumatic actuators.
Available in in sizes 1/4" to 4". Also offered as packages comprised of valve and actuator (both pneumatic DA/SR and electric) factory optimized by size.