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NSF REG4 S3 -
Water Fittings, System Components and Materials - Verification
of Regulatory Compliance with UK Regulation 4(1)(a)



For more info, visit NSF REG4 Certified Water Fittings, System Components and Materials

 
Watts Water Equipment Manufacturing (Ningbo) Co., Ltd 
No. 536 Mingzhou Road
Beilun District 
Ningbo 315800 
China 
86 147 3917 9684

Facility : # 1 China

Strainers
Trade Name Connection Sizes Max Pressure Max Temperature Expiry Date Certificate Number
W-W4112[1] [1] 16 bar 85°C 14-Aug-2028 
[1] Description: Y type strainer with epoxy coated cast iron bodies and stainless-steel
    strainers.
    
    Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400
    
    Marking: Watts logo, Model, Max Temperature and batch number on data plate on body. Flow
    arrow on body
Valves - Butterfly
Trade Name Connection Sizes Max Pressure Max Temperature Expiry Date Certificate Number
W-W1111-L[2] [2] 16 bar 85°C 14-Aug-2028
W-W1111-G[2] [2] 16 bar 85°C 14-Aug-2028
W-W1911-L[2] [2] 16 bar 85°C 14-Aug-2028
W-W1911-G[2] [2] 16 bar 85°C 14-Aug-2028 
[2] Range of Gear operation (W-W1911-L and W-W1911-G) or Wrench operation (W-W1111-L and
    W-W1111-G) wafer series butterfly valves with EPDM seats, blue epoxy Coated (cast or
    ductile iron) bodies with epoxy coated DI, or CF8M, or CF8 disc.
    
    Sizes:
    W-W1111-L: D50, DN65, DN80, DN100, DN125 and DN150
    W-W1111-G: D50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN350 and DN400
    W-W1911-L: D50, DN65, DN80, DN100, DN125 and DN150
    W-W1911-G: D50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN350 and DN400
    
    Marking: Watts, DN, Max Temperature and other technical info on Data Plate. Watts, Size
    and PN on body.
Gate Valves
Trade Name Connection Sizes Max Pressure Max Temperature Expiry Date Certificate Number
W-Z45H-16Q[3] [3] 16 bar 85°C 10-Feb-2029
W-Z45H-125Q[3] [3] 16 bar 85°C 10-Feb-2029
W-Z41H-16Q[3] [3] 16 bar 85°C 10-Feb-2029
W-Z41H-125Q[3] [3] 16 bar 85°C 10-Feb-2029 
[3] Description:  Range of gate valves
    
    W-Z45H-16Q  models are metal seated with non-rising spindle
    Sizes: DN50-DN300 with BS EN 1092-2 flange connection type
    
    W-Z45H-125Q models are metal seated with non-rising spindle
    Sizes: DN50-DN300 with CL125 ANSI B16.1 flange connection type
    
    For W-Z45H-16Q and W-Z45H-125Q, the only difference is assembly size of connection
    flanges.
    
    W-Z41H-16Q models are metal seated with outside screw & yoke
    Sizes: DN50-DN300 with BS EN 1092-2 flange connection type
    
    W-Z41H-125Q models are metal seated with outside screw & yoke
    Sizes: DN50-DN300 with CL125 ANSI B16.1 flange connection type
    
    For W-Z41H-16Q and W-Z41H-125Q, the only difference is assembly size of connection
    flanges.
    
    Marking: WATTS logo, PN, DN on body. WATTS, DN, model number, max temp and other
    information on data-plate.

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