275-05971
Details
Details
275-05971 3 in. 125# Flanged 2-Way Normally Closed Globe Valve with SKD82.50U Electro-Hydraulic Non-Spring Return Actuator, Floating, 24 VAC
Holds its last position on power loss.
Runs on 24 VAC only.
Has no built-in position feedback.
Normal-duty packing limits media to 20 to 250 deg F.
Limits modulating differential to 50 psi.
Closes off against only 22 psi with this actuator.
Needs the ASZ6.6 stem heater for media below 32 deg F.
Key Features
- Cv: 100
- Flow characteristic: equal percentage
- Trim: stainless steel
- Stroke: 3/4 in.
Product Specifications
| Manufacturer | Siemens |
|---|---|
| Model | 27505971 (275-05971) |
| Product | Flowrite 599 Series 2-way flanged globe valve and actuator assembly |
| Valve body part number | 599-05971 |
| Actuator | SKD82.50U Electro-Hydraulic Non-Spring Return Actuator, Floating, 24 VAC |
| Fail action | Non-spring return; holds last position on power failure |
| Line size | 3 in (80 mm) |
| Cv (Kvs) | 100 (85) |
| Action | Normally closed (NC) |
| Flow characteristic | Equal percentage |
| Trim | Stainless steel |
| Packing | Normal duty (Double EPDM O-rings) |
| End connections | Flanged, ANSI 125 (flanges per ANSI B16.1) |
| Controlled medium | Saturated steam, water, glycol solutions to 50% |
| Medium temperature | 20 deg F to 250 deg F (-7 deg C to 120 deg C) |
| Maximum recommended differential pressure, modulating, liquid | 50 psi (345 kPa) |
| Maximum recommended differential pressure, modulating, steam | 50 psi (345 kPa) |
| Pressure-temperature rating (ANSI 125 cast iron) | -20 to 150 deg F (-30 to 66 deg C): 200 psig (1387 kPa); 200 deg F (93 deg C): 190 psig (1310 kPa); 250 deg F (121 deg C): 175 psig (1206 kPa); 300 deg F (149 deg C): 165 psig (1137 kPa); 400 deg F (204 deg C): 140 psig (965 kPa); 450 deg F (232 deg C): 125 psig (861 kPa) |
| Stem travel (stroke) | 3/4 in (20 mm) |
| Body style | Flanged, iron body |
| Body material | Cast iron ASTM A126 Class B |
| Stem | Stainless steel ASTM A582 Type 303 |
| Seat style | Single seat, metal-to-metal |
| Bonnet | Direct coupled universal bonnet |
| Rangeability | >100:1 |
| Leakage rate | ANSI Class IV (0.01% of Cv) |
| Canadian Registration Number | 0C24303.5 |
| Mounting location | NEMA 1 (interior only) |
| Flange standard | Flange mounting according to ANSI B16.1 |
| Face-to-face dimensions | ANSI/ISA S75.03 |
| Parts materials | Packing spring stainless steel; packing bearing bronze; gasket copper; bonnet, valve body and cap cast iron; stem and plug assembly bronze or stainless steel; O-ring EP; cap screws plated steel |
| Installation | Flow follows the arrow on the body identification tag; best performance with actuator above the valve body; any position between vertical and horizontal; not recommended below horizontal or upside down |
| Stem heater (accessory) | ASZ6.6 stem heating element required for media below 32 deg F (0 deg C); 24 VAC/DC +/-20%, 40 VA/30 W max |
| Flange dimensions (ANSI 125, 3 in) | ANSI Class 125 cast iron flange: flange diameter 7-1/12 in; flange thickness 3/4 in; bolt circle diameter 6 in; bolt hole diameter 3/4 in; 4 bolts, 5/8 in diameter; machine bolt length 2-1/2 in [flange diameter printed '7-1/12'; see notes] |
| Valve dimension A (face-to-face) | 11-3/4 in (299 mm) |
| Valve dimension B (body bottom to bonnet top) | 11-15/16 in (303 mm) |
| Valve dimension C (body bottom to pipe centerline) | 5-5/8 in (142 mm) |
| Valve weight | 117 lb (53 kg) |
| Close-off pressure, this assembly | 22 psi (152 kPa) |
| Close-off rating basis | According to ANSI/FCI 70-2; ANSI Class IV (0.01% of Cv) |
| Actuator type | Electro-hydraulic, 24 VAC, 3-position (floating), non-spring return (NSR) |
| Actuator operating voltage | 24 VAC +/-20% |
| Actuator frequency | 50/60 Hz |
| Actuator power consumption | 13 VA / 8 W |
| Control signal | 3-position (floating): 24 VAC on Y1 moves the pressure cylinder toward the valve (outward, 0 to 1); 24 VAC on Y2 moves it toward the actuator (inward, 1 to 0); no signal = holds position; stroke proportional to signal time |
| Actuator equipment rating | Class 2 according to UL, CSA |
| Actuator stroke | 3/4 in (20 mm) |
| Running time | Power stroke 0 to 100%: 120 s; return stroke 100 to 0%: 120 s (full stroke opening and closing two minutes) |
| Nominal force | 0% stroke (NC and 3-way upper): 225 lb (1000 N); 100% stroke (NO and 3-way bypass): 258 lb (1150 N) |
| Actuator fail action | Fails in place: on power loss the actuator maintains its position |
| Actuator manual override | Manual setting knob; each 360 deg turn = 3/32 in (2.5 mm) stroke; valve cannot be commanded to 0% while in manual; knob fully counterclockwise (red indicator hidden) for automatic |
| Actuator enclosure | NEMA 1 (interior only), see accessories (weather shield); IP54 upright to sideways (EN 60529) |
| Ambient operating temperature | 5 deg F to 122 deg F (-15 deg C to 50 deg C) |
| Ambient humidity | 5 to 95% rh non-condensing |
| Actuator media temperature | -13 deg F to 300 deg F (-25 deg C to 150 deg C); below 0 deg C (32 deg F) requires stem heater |
| Actuator approvals | C-UL certified to Canadian standard C22.2 No. 24-93; approval CE, UL; UL 873 (AC 24 V) |
| Conduit opening | 1/2 in NPSM (knockouts for standard 1/2 in conduit connectors) |
| Wire size | 0.5 to 2.5 mm2, AWG 21 to 14 |
| Actuator housing material | Die-cast aluminum |
| Actuator weight | 7.5 lb (3.4 kg) |
| Dimensions / service envelope | Actual height H1 11-13/16 in (300 mm); service height H 19-3/4 in (500 mm); 5 in (127 mm) W x 6-5/8 in (169 mm) D; service width W 14-1/2 in (360 mm) |
| Mounting position / clearance | Vertical recommended (acceptable positions per figure); allow 4 in (100 mm) at sides and back, 8 in (200 mm) above and in front |
| Power supply wiring | Earth-ground isolating step-down Class 2 transformer, max 100 VA; do not use autotransformers; SKD82.50U 10 VA, 8 actuators per Class 2 supply circuit (80% of transformer VA) |