Wholesale Parallel double gate valve Z44T/W-10/16Q Suppliers, Factories

Main Parts And Materials Valve Body / RAM / bonnet:Gray cast iron, Nodular cast iron Valve stem:Brass ,stainless steel Middle port gasket: Xb300 Stem nut: nodular cast iron ,Brass Hand wheel: Grey cast iron ,Nodular cast iron Usage: Application: the valve is widely used in petroleum, chemical, pharmaceutical, electric power and other industries, with nominal pressure ≤ 1.5 MPa 0mpa steam, water and oil medium pipelines are used for opening and closing. Application : chemitry industry , oil and gas industry etc.  

Product Description

Technical Specifications
Type Nominal Pressure
(MPa)
Test Pressure (MPa) Applicable Temperature
(°C)
Applicable Media
Strength (Water) Seal (Water)
Z44T-10 1 1.5 1 ≤200°C Water, ≤1.0MPa Steam
Z44W-10 1 1.5 1 ≤100°C Oils
Z44T-16Q 1.6 2.4 1.76 ≤200°C Water, ≤1.0MPa Steam
Z44W-16Q 1.6 2.4 1.76 ≤100°C Oils
Main Dimensions & Connection Sizes
Model Nominal Diameter
(mm)
Size
L D D1 D2 b-f (H) Z-φd Do
Z44T/W-10 40 165 150 110 85 18-3 247 4-φ19 140
50 178 165 125 100 20-3 290 4-φ19 180
65 190 185 145 120 20-3 310 4-φ19 180
80 203 200 160 135 22-3 347 8-φ19 200
100 229 220 180 155 22-3 402 8-φ19 200
125 254 250 210 185 24-3 487 8-φ19 240
150 267 285 240 210 24-3 545 8-φ23 240
200 330 335 295 265 26-3 707 8-φ23 320
250 380 390 350 320 28-3 800 12-φ23 320
300 420 440 400 368 28-4 1015 12-φ23 400
350 450 500 460 428 30-4 1130 16-φ23 400
400 480 565 515 482 32-4 1242 16-φ25 500
Z44T/W-16Q 40 165 150 110 85 18-3 247 4-φ18 132
50 178 165 125 100 20-3 290 4-φ18 180
65 190 185 145 120 20-3 310 4-φ18 180
80 203 200 160 135 22-3 347 8-φ18 200
100 229 220 180 155 22-3 402 8-φ18 200
125 254 250 210 185 24-3 487 8-φ18 240
150 267 285 240 210 24-3 545 8-φ23 240
200 330 335 295 265 26-3 707 12-φ23 320
250 380 405 355 320 27-3 800 12-φ25 320
300 420 460 410 375 28-4 1015 12-φ25 400
Frequently Asked Questions
Q1: What are the primary working media for Z44T and Z44W valves?

Z44T series valves are specifically designed for water and steam applications (up to 1.0 MPa), whereas Z44W series valves are tailored for handling oils and related liquid media.

Q2: What is the maximum operating temperature for Z44T vs Z44W models?

Z44T models can withstand operating temperatures up to ≤200°C, making them suitable for steam applications. Z44W models operate at maximum temperatures of ≤100°C.

Q3: What are the test pressure ratings for 1.0 MPa and 1.6 MPa models?

For 1.0 MPa nominal pressure models (Z44T-10, Z44W-10), water strength test pressure is 1.5 MPa and seal test pressure is 1.0 MPa. For 1.6 MPa models (Z44T-16Q, Z44W-16Q), strength test pressure reaches 2.4 MPa with a seal test pressure of 1.76 MPa.

Q4: What size range is available for Z44T/W valve models?

The Z44T/W-10 series offers nominal diameters ranging from 40mm up to 400mm, while the Z44T/W-16Q series covers nominal diameters from 40mm up to 300mm.

Q5: How do flange dimensions differ between Z44T/W-10 and Z44T/W-16Q models?

While external dimensions (like face-to-face length L and height H) are identical for equivalent diameters, high-pressure 16Q models feature specific bolt hole configurations (Z-φd) and flange sizes (D, D1) designed for 1.6 MPa pressure applications.

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