SKU: GD-30

Bronze Pressure Reducing Valve for Steam

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GD-30 Pressure Reducing Valves for Steam.

  • Direct-acting type
  • Integral strainer to prevent debris
  • Easy handle adjustment
  • Superior performance & durability
  • Made by Yoshitake Japan
Application Steam
Type Direct-Acting
Inlet Pressure 0 to 17 Bar
Reduced Pressure 0.2 to 10 Bar
Connection BSPT (ISO7.1 Rc)
Minimum Differential Pressure 0.5 Bar
Maximum Pressure Reduction Ratio 10:1
Temperature 0 to 210°C
Body Bronze
Valve & Seat Stainless Steel
Bellows Phosphorous Bronze

 

Flow Rate in kg/hr

P1 (MPa) P2 (MPa) 1/2" BSPT 3/4" BSPT 1" BSPT
2.00 0.97 240 278 464
0.69 240 278 464
0.48 217 250 420
0.27 140 163 270
1.89 0.97 240 278 464
0.83 240 278 464
0.48 213 246 409
0.19 134 156 255
1.72 0.97 238 275 460
0.83 250 265 471
0.48 210 240 405
0.17 125 145 240
1.55 0.97 220 260 430
0.8 225 265 436
0.59 210 245 410
0.16 115 135 225
1.38 0.97 209 235 395
0.8 215 245 410
0.55 195 225 375
0.14 95 110 175
1.24 0.97 185 220 360
0.8 195 230 390
0.48 175 195 335
0.12 75 85 140
1.03 0.83 130 151 250
0.59 165 191 320
0.38 135 160 270
0.1 60 75 115
0.83 0.66 105 125 205
0.48 125 141 235
0.31 109 121 204
0.08 50 55 90
0.69 0.55 92 110 180
0.45 102 119 198
0.28 90 105 170
0.07 31 36 60
0.55 0.44 80 93 155
0.37 85 102 160
0.16 55 62 100
0.05 27 35 49
0.40 0.33 62 70 120
0.28 68 75 131
0.12 41 47 77
0.04 25 33 45
0.34 0.28 59 65 110
0.14 45 52 85
0.03 22 28 40
0.28 0.22 45 55 85
0.14 36 44 72
0.03 18 25 35
0.20 0.16 28 32 51
0.1 24 27 46
0.02 15 18 27
0.14 0.09 24 28 48
0.05 19 25 35
0.10 0.05 22 25 42

P1 = Inlet Pressure , P2 = Outlet Pressure

Bronze Pressure Reducing Valve Dimensions

Size d L H1 H Kg
15 1/2" BSPT 80 47 191 1.9
20 3/4" BSPT 85 47 191 1.9
25 1" BSPT 95 47 191 2

All dimensions in mm unless shown otherwise. 

Bronze Pressure Reducing Valve Construction

Number Part Material Grade QTY
1 Body Bronze CAC406 1
2 Spring Chamber Aluminium ADC12 1
3 Cap Brass C3771 1
4 Handle Polycarobonate PC 1
5 Spring Plate Cast Iron FC200 1
6 Valve Seat Stainless Steel SUS304 1
7 Valve Stainless Steel SUS440 1
8 Spindle Stainless Steel SUS304 1
9 Screen Stainless Steel SUS304 1
10 Bellows Phosphorous Bronze C5212 1
11 Adjusting Screw Carbon Steel SUM22 1
12 Spring Alloy Steel SWOSC 1
13 Spring Stainless Steel SUS304 1
14 Spring Stainless Steel SUS304 1
15 Bolts Carbon Steel SCM435 4
16 Gasket Copper C1100 1
17 Gasket Copper C1100 1
18 Washer Stainless Steel SUS304 2
19 Pin Stainless Steel SUS304 1
20 E Rign Stainless Steel SUS304 1
21 Split Pin Stainless Steel SUS304 1
22 Push Nut Stainless Steel SUS304 1
23 Name Plate Aluminium A1050P 1

Size 1/2" to 2" BSPT
Body Bronze
Application Steam
Inlet Pressure Range 0 to 17 Bar
Outlet Pressure Range 0.2 to 10 BAR
Temperature 0°C to 210°C

  1. What is a Bronze Pressure Reducing Valve for Steam, and what is its primary purpose?

    • A Bronze Pressure Reducing Valve for Steam is a specialized valve designed to control and reduce the high-pressure steam entering a system to a safe and manageable level. Its primary purpose is to maintain a consistent and lower steam pressure downstream, preventing damage to equipment and ensuring safe operation.

  2. How does a pressure reducing valve work in a steam system?

    • Pressure reducing valves work by using a spring-loaded mechanism to regulate the flow of steam. When the upstream pressure exceeds the desired setpoint, the valve opens, allowing steam to pass through. As the pressure approaches the setpoint, the valve gradually closes, reducing the pressure until it reaches the desired level.

  3. Why is bronze commonly used as the material for these valves?

    • Bronze is a preferred material for steam pressure reducing valves because it offers excellent corrosion resistance, durability, and can withstand high-temperature and high-pressure conditions typically found in steam systems. It is also less prone to scaling and deposits compared to other materials.

  4. What are the key components of a bronze pressure reducing valve for steam?

    • The key components typically include a valve body, a diaphragm or piston assembly, a spring, an adjustment knob, and inlet/outlet connections. The diaphragm or piston is sensitive to pressure changes and controls the opening and closing of the valve to maintain the desired outlet pressure.

  5. What is the ideal pressure range for steam systems where these valves are used?

    • The ideal pressure range for a steam system will depend on the specific application and equipment being used. However, bronze pressure reducing valves for steam are commonly designed to handle pressures in the range of 15 to 150 psi (1 to 10 bar), which is typical for many industrial and commercial steam applications. It's important to select a valve that matches the pressure requirements of your system.

GD-30

Bronze Pressure Reducing Valve for Steam

Features:

Size 1/2" to 2" BSPT
Body Bronze
Application Steam
Inlet Pressure Range 0 to 17 Bar
Outlet Pressure Range 0.2 to 10 BAR
Temperature 0°C to 210°C

Description:

GD-30 Pressure Reducing Valves for Steam.

  • Direct-acting type
  • Integral strainer to prevent debris
  • Easy handle adjustment
  • Superior performance & durability
  • Made by Yoshitake Japan
Application Steam
Type Direct-Acting
Inlet Pressure 0 to 17 Bar
Reduced Pressure 0.2 to 10 Bar
Connection BSPT (ISO7.1 Rc)
Minimum Differential Pressure 0.5 Bar
Maximum Pressure Reduction Ratio 10:1
Temperature 0 to 210°C
Body Bronze
Valve & Seat Stainless Steel
Bellows Phosphorous Bronze

 

Flow Rate in kg/hr

P1 (MPa) P2 (MPa) 1/2" BSPT 3/4" BSPT 1" BSPT
2.00 0.97 240 278 464
0.69 240 278 464
0.48 217 250 420
0.27 140 163 270
1.89 0.97 240 278 464
0.83 240 278 464
0.48 213 246 409
0.19 134 156 255
1.72 0.97 238 275 460
0.83 250 265 471
0.48 210 240 405
0.17 125 145 240
1.55 0.97 220 260 430
0.8 225 265 436
0.59 210 245 410
0.16 115 135 225
1.38 0.97 209 235 395
0.8 215 245 410
0.55 195 225 375
0.14 95 110 175
1.24 0.97 185 220 360
0.8 195 230 390
0.48 175 195 335
0.12 75 85 140
1.03 0.83 130 151 250
0.59 165 191 320
0.38 135 160 270
0.1 60 75 115
0.83 0.66 105 125 205
0.48 125 141 235
0.31 109 121 204
0.08 50 55 90
0.69 0.55 92 110 180
0.45 102 119 198
0.28 90 105 170
0.07 31 36 60
0.55 0.44 80 93 155
0.37 85 102 160
0.16 55 62 100
0.05 27 35 49
0.40 0.33 62 70 120
0.28 68 75 131
0.12 41 47 77
0.04 25 33 45
0.34 0.28 59 65 110
0.14 45 52 85
0.03 22 28 40
0.28 0.22 45 55 85
0.14 36 44 72
0.03 18 25 35
0.20 0.16 28 32 51
0.1 24 27 46
0.02 15 18 27
0.14 0.09 24 28 48
0.05 19 25 35
0.10 0.05 22 25 42

P1 = Inlet Pressure , P2 = Outlet Pressure

.

Bronze Pressure Reducing Valve for Steam

GD-30

Dimensions:

Bronze Pressure Reducing Valve Dimensions

Size d L H1 H Kg
15 1/2" BSPT 80 47 191 1.9
20 3/4" BSPT 85 47 191 1.9
25 1" BSPT 95 47 191 2

All dimensions in mm unless shown otherwise. 

.

Bronze Pressure Reducing Valve for Steam

GD-30

Construction:

Bronze Pressure Reducing Valve Construction

Number Part Material Grade QTY
1 Body Bronze CAC406 1
2 Spring Chamber Aluminium ADC12 1
3 Cap Brass C3771 1
4 Handle Polycarobonate PC 1
5 Spring Plate Cast Iron FC200 1
6 Valve Seat Stainless Steel SUS304 1
7 Valve Stainless Steel SUS440 1
8 Spindle Stainless Steel SUS304 1
9 Screen Stainless Steel SUS304 1
10 Bellows Phosphorous Bronze C5212 1
11 Adjusting Screw Carbon Steel SUM22 1
12 Spring Alloy Steel SWOSC 1
13 Spring Stainless Steel SUS304 1
14 Spring Stainless Steel SUS304 1
15 Bolts Carbon Steel SCM435 4
16 Gasket Copper C1100 1
17 Gasket Copper C1100 1
18 Washer Stainless Steel SUS304 2
19 Pin Stainless Steel SUS304 1
20 E Rign Stainless Steel SUS304 1
21 Split Pin Stainless Steel SUS304 1
22 Push Nut Stainless Steel SUS304 1
23 Name Plate Aluminium A1050P 1

WARNING

These products are intended for use in industrial applications only. Do not use these products where pressures and temperatures can exceed those listed under ‘Technical Data’ and in our individual ‘Series’ data sheets. Before using these products with fluids other than these specified, for non-industrial applications, life-support systems, or other applications not within published specifications, consult Hawleys Through misuse, age, or malfunction, components used in industrial valve applications can fail in various modes. The system designer is warned to consider the failure modes of all component parts used in industrial valve applications and to provide adequate safeguards to prevent personal injury or damage to equipment in the event of such failure. System designers must provide a warning to the user in the system instructional manual if protection against a failure mode cannot be adequately provided. System designers and end users are cautioned to review specific warnings or specifications found in instruction sheets or labels packed or attached and shipped with the products. Our policy is one of continuous research and development. We therefore reserve the right to amend without notice the specifications given in this document or our individual ‘Series’ data sheets.

WARRANTY INFORMATION

All valve series and other products manufactured or distributed by Hawleys are warranted by Hawleys to be free of defects in material and workmanship for a period of 1 year from the date of purchase or as the manufacturer warrants. Hawleys obligation under this warranty is limited to repair or replacement of the defec1ive product or refund of the purchase price paid solely at the discretion of Hawleys and provided such defective product is returned to Hawleys freight prepaid and upon examination by Hawleys such product is found defective. This warranty shall be void in the event that the product has been subject to misuse, misapplication, improper maintenance, modification or tampering. This warranty is expressed in lieu of all other warranties, expressed or implied from Hawleys representatives or employees. Hawleys reserves the right to change Valve and Brochure specifications without notice.