Overview: Siemens 599-00230
The Siemens 599-00230 is a 599 Series 3-way, 1/2 in. NPT zone valve body (Cv 1.0, Kvs 0.85) with a direct-coupled universal bonnet that accepts Siemens SFA/P Series, SSA or SSE/F Series electric actuators. The actuator is ordered separately and determines its power-failure action: an SFA actuator fails AB to B, an SFP actuator fails AB to A, and SSA81U, SSE161.05U and SSF161.05U actuators hold their last position.
NPT 599 bodies are also offered as factory valve and actuator assemblies, ordered by adding a 3-digit actuator prefix code to the body suffix (for example 240-00230 with the SFA11U).
Specifications verified against Siemens 599 Series Submittal Sheet 154-034 (February 1, 2023); Valve Body Technical Instructions 155-320P25 (December 8, 2022); Assembly Selection Technical Bulletin 155-291 (February 3, 2023). Last reviewed October 11, 2026.
Best For
- Hot or chilled water zone control: zones with radiators, floor heating by manifolds, fan coil units, induction units, cooling ceilings, wall-mounted boilers, VAV applications
- Diverting service, and mixing service in limited applications
- Water and glycol solutions to 50%, 34 to 230 °F
Warranty
For Siemens warranty terms on this product, contact Team Zot at 855-825-2811 or sales@zotsupply.com.
Key Features
Universal Bonnet
Direct-coupled universal bonnet accepts Siemens SFA/P Series, SSA and SSE/F Series electric actuators.
Actuator Sets Fail Action
Fails AB to B with SFA, AB to A with SFP; SSA81U, SSE161.05U and SSF161.05U hold their last position.
Close-Off by Actuator
Maximum close-off (AB-A) from 80 to 125 psi depending on the actuator selected.
Tight Shutoff Options
ANSI Class III leakage with SFA/P or SSA actuators; ANSI Class IV with SSE/SSF actuators.
Brass Body, Stainless Stem
Brass body and trim, Type 303 stainless steel stem, ethylene propylene O-ring packing.
232 psig Max Inlet
ANSI Class 125 (PN 16) body rated to 232 psig maximum inlet pressure.
ZOT Supply is an authorized distributor of Siemens products.
Technical Specifications
Valve Body
| Valve pattern | 3-way diverting (mixing in limited applications) |
|---|---|
| Action | Set by actuator: SFA fails AB to B; SFP fails AB to A; SSA81U, SSE161.05U and SSF161.05U are fail-in-place |
| Line size | 1/2 in. (15 mm) |
| End connection | NPT threaded |
| Flow coefficient (Cv) | 1.0 (AB to A) |
| Kvs | 0.85 |
| Flow characteristic | Linear |
| Body style | Globe |
| Seat style | Metal-to-metal |
| Bonnet | Direct-coupled, universal bonnet |
| Stem travel (stroke) | 1/10 in. (2.5 mm) |
| Valve body rating | ANSI Class 125 (PN 16) |
| Body / trim material | Brass / Brass |
| Stem material | Stainless steel ASTM A582 Type 303 |
| Packing | Ethylene propylene O-ring |
| Controlled medium | Water, glycol solutions to 50% |
| Medium temperature range | 34 to 230 °F (1 to 110 °C) |
| Maximum inlet pressure | 232 psig |
| Maximum close-off pressure (AB-A) | SFA: 87 psi; SFP: 80 psi; SSA: 94 psi; SSE/SSF: 125 psi |
| Close-off rating standard | According to ANSI/FCI 70-2 |
| Leakage rate | ANSI Class III (AB-A) with SFA/P or SSA actuators; ANSI Class IV (AB-A) with SSE/SSF actuators |
| Mounting location | NEMA 1 (interior only) |
| Valve body weight | 0.90 lb (0.40 kg) |
| Service kit | 599-00599 AL50 zone valve support rings, 10 pack |
Valve Body Dimensions
| Overall length (A) | 2.76 in. (70 mm) |
|---|---|
| Overall height (B) | 2.34 in. (59.5 mm) |
| Pipe centerline to top of body (C) | 0.96 in. (24.5 mm) |
| Installation | Flow in direction of body arrow; actuator above valve body preferred; any position from vertical to horizontal, not below horizontal or upside down |
Documentation
Frequently Asked Questions
What is the Cv of the Siemens 599-00230?
The 599-00230 has a Cv of 1.0 (Kvs 0.85) on the AB to A path in a 1/2 in. NPT 3-way 599 body with a linear flow characteristic.
Which actuators fit the Siemens 599-00230?
The 599-00230 accepts Siemens SFA/P Series (SFA11U, SFP11U, SFA71U, SFP71U), SSA Series (SSA81U) and SSE/F Series (SSE161.05U, SSF161.05U) electric actuators on its direct-coupled universal bonnet.
Which port does the Siemens 599-00230 fail to?
The actuator determines it. With an SFA actuator the 3-way valve fails AB to B; with an SFP actuator it fails AB to A. SSA81U, SSE161.05U and SSF161.05U actuators are fail-in-place.
What is the close-off pressure of the Siemens 599-00230?
Maximum close-off (AB-A) depends on the actuator: 87 psi with SFA, 80 psi with SFP, 94 psi with SSA81U and 125 psi with SSE/SSF actuators.
Can the Siemens 599-00230 be ordered as a factory assembly?
Yes. Add the actuator prefix code to the body suffix: 240-00230 (SFA11U), 241-00230 (SFP11U), 242-00230 (SFA71U), 243-00230 (SFP71U), 244-00230 (SSA81U), 245-00230 (SSE161.05U) or 248-00230 (SSF161.05U).
Can the Siemens 599-00230 be used as a mixing valve?
The 599 3-way body is a diverting valve. It may be used for mixing in limited applications: mounted in the return flow and within the allowable differential pressure for the system pressure shown in the 599 Technical Instructions.
How should the Siemens 599-00230 be installed?
Install so flow follows the arrow on the valve body. For best performance mount the actuator above the valve body; any position between vertical and horizontal is acceptable, but not below horizontal or upside down.
What media and temperatures is the Siemens 599-00230 rated for?
Water and glycol solutions to 50%, medium temperature 34 to 230 °F (1 to 110 °C), maximum inlet pressure 232 psig.
- Valve Pattern:
- 3-Way
- Valve Size:
- 1/2 Inch
- Connection Type:
- NPT
- CV Rating:
- 1.0
- Medium Temperature Range:
- 34-230 °F
- Body Material:
- Brass
- Actuator Type:
- Valve Only
