The Siral CVW 2" FNPT 2-Way Stainless Steel Characterized Control Ball Valve with Actuator (Stainless Steel Ball & Stem), Cv 29-230 is a compact automated 2-piece valve package designed for highly precise modulating and proportional fluid regulation with bubble-tight (zero leakage) shutoff. Conforming to ASME B16.34, the integrated direct-mounting pad allows the electric actuator to mount directly to the valve body, reducing hysteresis, preventing alignment errors, and saving valuable installation space in commercial mechanical rooms.
To ensure long-term durability in the field, this valve is engineered with a robust nickel-plated brass body designed to reduce stress concentration. Its advanced floating seat design maintains stable operating torque throughout the life of the valve, protecting the actuator from premature wear, while the self-cleaning SS ball actively eliminates blockages and leakage caused by damaged surfaces. Additionally, an integrated thermal barrier flange minimizes heat transfer to further extend the service life of the actuator.
Also available in sizes 1/2", 3/4", 1", 1 1/4", and 1 1/2".
General Valve Specification
- Valve Type: Characterized Ball Valve (2-Way)
- Port Design: Characterized
- Body Material: Nickel-Plated Brass
- Valve Trim: Stainless Steel Ball & Stem
- Body Pressure Rating: 600 PSI (1/2"-1") / 400 PSI (1-1/4"-2")
- Close-Off Pressure Rating: 200 PSI (Maximum Differential: 50 PSI)
- Temperature Range: 0°F to 250°F / -18°C to 120°C
- Seat Material: PTFE
- Characterizing Disc: Brass Characterized
- Ball Material: Stainless Steel (Self-Cleaning)
- Stem Material: Stainless Steel (Blowout-Proof)
- O-Ring Material: EPDM
- Flow Characteristic: Equal Percentage (A to AB)
- Allowed Media: Water, Glycol (up to 60%)
- Operation: Electric Actuator (24VAC, Non-Fail Safe Non Spring Return, Fail Safe Spring Return, IP42)
- Body Style: 2-Piece, Direct Mount
- Flow Function: Modulating / Flow Regulation
- End Connections: Threaded FNPT
- Country of Origin: Italy
- Assembled in the USA
- Mounting Pad Standard: ISO 5211 (F04)
Siral Automated Package 5-Year Warranty
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This automated package includes an exceptional 5-year warranty. The 5 year warranty period is unconditional for the first two (2) years. After the first 2 years, the warranty shall be conditional and the warranty coverage shall not apply to damage to Products caused by factors that constitute non-conformance beyond the control of Seller.
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Actuator Models & Specifications Summary
| Models |
NFV24F |
NFV24M |
NFV24-S-S |
FFV24 |
FFV24M |
FFV24-S |
| Fail Safe |
No |
Yes |
| Spring Return |
No |
Yes |
| Control Signal |
On/Off / Floating (3-Point) |
2-10 VDC |
On/Off |
2-10 VDC |
2-10 VDC,4-20mA |
| Voltage AC |
24 VAC 50/60 Hz ± 20% |
| Voltage DC |
24 VDC ± 10% |
24 VDC +20%/-10% |
| Consumption Running |
2.5 W |
5 W |
5.5 W |
| Transformer |
6 VA (Class 2) |
5 VA (Class 2) |
7.5 VA (Class 2) |
8.5 VA (Class 2) |
| Connection (3 ft- 1m) |
Terminals, Plenum rated cable 18 GA: 3 Ft (1 m) |
Terminals, Plenum rated cable 18 GA 10 Ft.(3 m) |
| Run Time (Motor) |
90 seconds |
< 75 seconds |
95 seconds |
| Manual Override |
Push-button |
Hex Crank (5mm) |