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Home HVACAuxiliary EquipmentValve4 Way Reversing Valve

SHF(L)-350-1721 Sanhua 4 Way Reversing Valve

Brand:
Sanhua
Medium Temperature[℃ ]:
-30/130 ℃
Min. OPD[MPa]:
0.3 MPa
Max. OPD[MPa]:
3.1 MPa
Max. Working Pressure[MPa]:
4.2 MPa
Connections ØE,S,C [inch]:
2 - 5/8 inch
Connections ØD [inch]:
2 - 1/8 inch
Fixed/Inverter AC:
General
Series:
SHF
Model:
SHF 350
Order Number:
SHF(L)-350-1721
Description:
SHF(L)-350-1721, Sanhua, SHF Series, General, 2 - 1/8 inch, 2 - 5/8 inch, 4.2 MPa, 3.1 MPa, 0.3 MPa, -30/130 ℃
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Product parameters

Product attributes Attribute value Filter product attributes
Brand： Sanhua
Medium Temperature[℃ ]： -30/130 ℃
Min. OPD[MPa]： 0.3 MPa
Max. OPD[MPa]： 3.1 MPa
Max. Working Pressure[MPa]： 4.2 MPa
Connections ØE,S,C [inch]： 2 - 5/8 inch
Connections ØD [inch]： 2 - 1/8 inch
Fixed/Inverter AC： General
Series： SHF
Products with the same attribute : 0
Show details

Series Overview

SHF series four-way reversing valves are applicable for heat 
pump systems such as commercial and room air conditioners realize switching cooling mode, deforsting mode and heating mode by changing the fow path of refrigerant.
FEATURES 
• ALL STAINLESS STEEL VALVE BODY AND CONNECTION   BODY, HIGH COMPRESSIVE STRENGTH AND BETTER VIBRATION RESISTANCE
• LESS HEAT LOSS THAN COPPER VALVE, HIGH EFFICIENCY AND ENERGY SAVING
• THE TOP OF CONNECTION END IS DESIGNED AS A COPPER JOINT, WHICH IS CONVENIENT FOR WELDING AND INSTALLATION
• SUITABLE FOR COOLING CAPACITIES FROM 4.6kW TO 77.2 kW (R410A, CONDITION 1)
GENERAL SPECIFICATIONS
• Applicable for all common HCFC,HFC,HFO and HC refrigerants such as: R22, R134a, R404A, R407C, R410A, R507, R1234yf, R1234ze(E), R32, R290, etc.
• Ambient Medium Temperature min/ max: SHF 4G/7G/13G: 
-30°C~+120°C
SHF20GR/20G/35G/50G/70G: -30°C~+130°C
• Ambient temperature min/max: -30°C~+55°C
• Relative humidity: 0 to 95% RH
• Max. operating pressure: 4.2MPa (42bar)
• Certifcations: CQC
• Installation position: - Coil upwards or with body axis in horizontal alignment
- Flow direction according to installation instruction

Details

SHF
Valve Series Nominal Cooling Capacity (condition 1) KW Nominal Cooling Capacity (condition 2) KW
R22 R134a R407C R410A R32 R22 R134a R407C R410A R32
ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar ΔP:0.1bar ΔP:0.2bar
SHF3 3.1 4.4 2.4 3.4 2.9 4.1 3.8 5.3 4.9 6.9 2.9 4.1 2.2 3.1 2.7 3.8 3.4 4.8 4.6 6.4
SHF4 3.5 5.0 2.7 3.9 3.3 4.7 4.3 6.1 5.5 7.8 3.3 4.7 2.5 3.6 3.1 4.4 3.9 5.5 5.2 7.4
SHF7 6.4 9.1 5.0 7.0 6.1 8.6 7.8 11.1 10.1 14.2 6.1 8.6 4.6 6.5 5.6 7.9 7.1 10.0 9.4 13.3
SHF11 10.0 14.1 7.7 10.9 9.4 13.3 12.1 17.1 15.6 22.1 9.4 13.3 7.1 10.1 8.7 12.3 11.0 15.6 14.6 20.7
SHF14 14.6 20.7 11.3 15.9 13.8 19.5 17.8 25.2 22.9 32.4 13.8 19.5 10.5 14.8 12.7 18.0 16.1 22.8 21.5 30.4
SHF20 21.9 31.0 16.9 23.9 20.7 29.3 26.7 37.7 34.3 48.6 20.7 29.2 15.7 22.2 19.1 27.0 24.2 34.2 32.2 45.5
SHF35 32.5 46.0 25.1 35.5 30.7 43.5 39.6 56.0 51.0 72.1 30.7 43.4 23.4 33.0 28.4 40.1 36.0 50.9 47.8 67.6
SHF50 41.8 59.2 32.3 45.6 39.5 55.9 50.9 72.0 65.6 92.7 39.4 55.8 30.0 42.5 36.5 51.6 46.2 65.4 61.5 86.9
SHF70 63.1 89.2 48.7 68.8 59.6 84.3 76.8 108.6 98.9 139.8 59.5 84.5 45.3 64.0 55.0 77.8 69.7 98.6 92.7 131.1
SHF100 89.6 126.8 69.1 97.8 84.7 119.7 109.1 154.3 140.5 198.7 84.5 119.6 64.3 91.0 78.1 110.5 99.1 140.1 131.7 186.3
SHF140 129.3 182.8 99.7 141.0 122.1 172.7 157.4 222.6 202.6 286.5 121.9 172.4 92.8 131.2 112.7 159.3 142.9 202.0 190.0 268.7
SHF175 156.1 220.7 120.4 170.2 147.4 208.4 190.0 268.7 244.5 345.8 147.2 208.1 112.0 158.4 136.0 192.3 172.5 243.9 229.3 324.3
SHF210 186.8 264.2 144.1 203.8 176.4 249.5 227.4 321.7 292.8 414.0 176.2 249.1 134.1 189.6 162.8 230.3 206.5 292.0 274.5 388.3
SHF350 306.4 433.2 236.3 334.2 289.3 409.2 373.0 527.4 480.1 678.9 288.9 408.5 219.9 311.0 267.0 377.6 338.6 478.8 450.2 636.7
SHF420 391.8 554.1 302.2 427.4 370.0 523.3 477.0 674.6 613.9 868.3 369.4 522.5 281.2 397.7 341.5 482.9 433.0 612.3 575.8 814.2
Note:
1.ΔP represents the pressure drop from ØC to ØS or from ØE to ØS;
2. The selection capacity of the four-way valve for R32 systems should be ≥60%. It is not recommended to use the four-way valve in
systems with a capacity less than 60% of the nominal capacity. When used in R32 systems, it is essential to ensure the reliability of
low-pressure commutation under extreme conditions.

Product Introduction

<section class="ybc-p">
<p data-start="67" data-end="473">The Sanhua SHF (L)-350-1721 4-way reversing valve is a mainline product in the large-size series, designed for high-flow industrial systems. Its core feature is the 350 series nominal flow capacity, making it suitable for medium industrial chillers, chemical medium-flow pipeline transport systems, and other large-flow scenarios, ensuring efficient operation of production lines.</p>
<p data-start="475" data-end="500"><strong data-start="475" data-end="498">Key Specifications:</strong></p>
<ul data-start="501" data-end="762">
<li data-start="501" data-end="566">
<p data-start="503" data-end="566"><strong data-start="503" data-end="527">Nominal Flow Series:</strong> 350 (recommended flow: 120&ndash;200 m&sup3;/h)</p>
</li>
<li data-start="567" data-end="612">
<p data-start="569" data-end="612"><strong data-start="569" data-end="598">Operating Pressure Range:</strong> 0.8&ndash;4.0 MPa</p>
</li>
<li data-start="613" data-end="656">
<p data-start="615" data-end="656"><strong data-start="615" data-end="641">Operating Temperature:</strong> -20℃ to 150℃</p>
</li>
<li data-start="657" data-end="713">
<p data-start="659" data-end="713"><strong data-start="659" data-end="688">Connection Specification:</strong> DN80 flange connection</p>
</li>
<li data-start="714" data-end="762">
<p data-start="716" data-end="762"><strong data-start="716" data-end="740">Valve Body Material:</strong> 316 stainless steel</p>
</li>
</ul>
<p data-start="764" data-end="926">Compared with the 420 series models, this model is optimized for medium-flow systems, featuring a smaller flange size and requiring 25% less installation space.</p>
<p data-start="928" data-end="969"><strong data-start="928" data-end="967">Technical Advantages &amp; Innovations:</strong></p>
<ul data-start="970" data-end="1406">
<li data-start="970" data-end="1094">
<p data-start="972" data-end="1094">Single-pilot enhanced control module, with switching response time &le; 0.6 s and pressure loss &le; 0.25 MPa under high flow.</p>
</li>
<li data-start="1095" data-end="1218">
<p data-start="1097" data-end="1218">Internal flow channels feature a gradual design to reduce medium turbulence losses and improve transmission efficiency.</p>
</li>
<li data-start="1219" data-end="1406">
<p data-start="1221" data-end="1406">Valve body uses a forged + welded composite process, providing high structural strength while reducing manufacturing costs, offering a cost-effective solution for medium-flow systems.</p>
</li>
</ul>
<p data-start="1408" data-end="1434"><strong data-start="1408" data-end="1432">Target Applications:</strong></p>
<ul data-start="1435" data-end="1952">
<li data-start="1435" data-end="1569">
<p data-start="1437" data-end="1569"><strong data-start="1437" data-end="1468">Medium Industrial Chillers:</strong> Controls refrigerant circuit switching for 300&ndash;500 RT chillers, matching medium-flow requirements.</p>
</li>
<li data-start="1570" data-end="1755">
<p data-start="1572" data-end="1755"><strong data-start="1572" data-end="1624">Chemical Medium-Flow Pipeline Transport Systems:</strong> Used for batch transport of chemical raw materials; 316 stainless steel ensures corrosion resistance compatible with the medium.</p>
</li>
<li data-start="1756" data-end="1952">
<p data-start="1758" data-end="1952"><strong data-start="1758" data-end="1821">Large Commercial Building Central Air Conditioning Systems:</strong> Suitable for water circulation switching in commercial complexes over 10,000 m&sup2;, ensuring multi-zone heating and cooling supply.</p>
</li>
</ul>
<p data-start="1954" data-end="1995"><strong data-start="1954" data-end="1993">Installation &amp; Compatibility Notes:</strong></p>
<ul data-start="1996" data-end="2317">
<li data-start="1996" data-end="2098">
<p data-start="1998" data-end="2098">Confirm DN80 flange specifications and ensure sealing surfaces meet standards during installation.</p>
</li>
<li data-start="2099" data-end="2169">
<p data-start="2101" data-end="2169">Reserve at least 25 cm of maintenance space around the valve body.</p>
</li>
<li data-start="2170" data-end="2317">
<p data-start="2172" data-end="2317">During commissioning, gradually increase flow to the rated value, check switching stability and pressure loss, and record operating parameters.</p>
</li>
</ul>
</section>

Rachel

Industrial Control Sales Specialist: Focuses on delivering high-performance, cost-effective industrial control products. Offers end-to-end one-stop procurement support—covering rapid quotation, streamlined order fulfillment, and responsive after-sales service—to simplify clients’ procurement processes. Email: Anthony@icxsg.com

We offer competitive product pricing. For fast support, send your email, phone, address, and the product model & quantity you want—we’ll reach out quickly!

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