Ultra High Temperature Solenoid Valve

Ultra High Temperature Resistant Solenoid Valve

The ZAG Ultra-High Temperature Solenoid Valve is engineered for reliable automatic control of hot water, steam, and thermal oil under extreme conditions. With an all-metal seal, it withstands 350–450°C and pressures up to 4.0 MPa. Its compact, lightweight design with stainless steel piston ensures long service life, frequent duty cycles, and stable performance in industries such as petrochemical, power generation, food processing, HVAC, and industrial furnaces.

  • Model: ZAG

  • Nominal Diameter (DN): DN15 ~ DN150

  • Nominal Pressure (PN): 1.0 MPa ~ 4.0 MPa

  • Operating Temperature: -29°C ~ +450°C

  • Body Material: Cast Steel, Stainless Steel

  • Applicable Media: Water, Steam, Oil, Gas, Liquid

  • Structure Type: Pilot Piston Type

  • Connection Type: Flange, Threaded

  • Actuation Method: Electromagnetic (Solenoid Actuated)

  • Manufacturing Standards: GB (China), DIN (Germany), API & ANSI (USA)

Medium Temperature
(℃)		 ZAG ≤250 ≤450
ZAH ≤400
Working Pressure
(MPa)		 ZAG 2.5
ZAH 4
Pressure Differential
(MPa)		 ZAG 0.1-2.5
ZAH 0.1-4.0
Orifice (MPa) 15 20 25 32 40 50 65 80 100
Consumption 130VA 480VA
Voltage 110VAC / 220VAC / 24VDC
Flow Rate
(KV)		 3.8 7.4 10.3 18.8 25.7 41 58 85 154
Leakage Rate
(ml/min)		 According to JB/T7352-94·F
high temperature resistant solenoid valve
Model Orifice
DN(mm)		 Working Pressure
(Bar)		 Body Material Female Thread (mm) Flange Connection (mm)
G L H L H D D1 n-d
ZAG15 15 B16 Class: 0-16
B8 Class: 0-8(N/O)
B25 Clas: 1-25		 Stainless Steel 1/2″ 90 198 90 200 Φ95 65 4-Φ12
ZAG 20 20 3/4″ 95 200 115 205 Φ105 75 4-Φ14
ZAG 25 25 1″ 110 210 125 210 Φ115 85 4-Φ14
ZAG 32 32 1 1/4″ 120 220 140 220 Φ135 100 4-Φ18
ZAG 40 40 1 1/2″ 140 230 165 230 Φ145 110 4-Φ18
ZAG 50 50 2″ 160 245 190 260 Φ160 125 4-Φ18
ZAG65F 65 B16 Class: 0.5-16
B25 Class: 1-25		 Stainless Steel
WCB		 – – – 250 310 Φ185 145 4-Φ18
ZAG 80F 80 – – – 270 325 Φ200 160 8-Φ18
ZAG100F 100 – – – 320 420 Φ220 180 8-Φ18
ZAG150F 150 – – – 400 490 Φ285 240 8-Φ18

Key Features

  1. Continuous Duty at Extreme Temperatures – All-metal sealing allows long-term operation with medium temperatures up to 350°C–450°C.

  2. Optimized Sealing for Different Media – Tailored sealing materials ensure durability and higher efficiency.

  3. Compact & Lightweight Design – Innovative valve core structure with integrated heat dissipation makes the valve only one-third the weight of similar products.

  4. High Durability & Reliability – Stainless steel piston structure with self-compensating valve core wear ensures long service life and frequent duty cycles.

  5. High Pressure Resistance – Handles medium pressure up to 2.5–4.0 MPa.

Applications

  • Aerospace & shipbuilding

  • Petrochemical & power generation

  • Biopharmaceutical & food processing

  • Industrial kilns, drying & HVAC systems

  • Electroplating, coating & rubber machinery

  • Thermal plants, papermaking & textile industries

Technical Specifications

  • Structure: Step-by-step direct-acting piston type, pilot piston type

  • Medium Temperature: ≤350°C (C7 group)

  • Control Type: Normally Closed (NC) / Normally Open (NO)

  • Standard Voltage: AC220V, DC24V (others customizable)

  • Applicable Media: Hot water, steam, thermal oil, and other high-temperature fluids

  • Ambient Temperature: -30°C ~ +75°C

  • Sealing Materials: PTFE, red copper

  • Electrical Connection: Terminal box

  • Protection Rating: IP54 (standard), IP56 (explosion-proof)

  • Explosion-Proof Grade: dâ…¡BT4, dâ…¡CT5

Installation Instructions

  1. Pre-Installation:
    Verify the solenoid valve model and specifications carefully. Flush the pipeline and connections before installation.

  2. Installation Direction:
    The medium flow direction must match the arrow mark on the valve body. The solenoid coil should always be positioned vertically upwards.

  3. Avoid Low Positions:
    Do not install the valve at the lowest point of the pipeline, as condensate or impurities may accumulate inside the valve and affect its operation.

  4. Safety Limitation:
    This ultra-high temperature solenoid valve must not be installed in explosive or hazardous environments.

  5. Space Requirement:
    Ensure sufficient installation space around the valve for heat dissipation, routine inspection, and maintenance.