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Zhejiang Guanlong Machinery Valve Co., Ltd.

Safety Valve, Constant Pressure Valve, Pressure Sustain Valve manufacturer / supplier in China, offering Pressure Reducing / Maintaining Valve Constant Pressure, Wafer Insert Vertical Elevated Lift Type Non Return Check Valve (H72H), Wafer Silent One Way Non Salm Non Return Check Valve and so on.

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Pressure Reducing / Maintaining Valve Constant Pressure

Purchase Qty.:
10-49 50+
FOB Unit Price: US $50 US $40
Purchase Qty. (Pieces) FOB Unit Price
10-49 US $50
50+ US $40
Get Latest Price
Port: Ningbo, China
Production Capacity: 20000PCS/Year
Payment Terms: L/C, T/T

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Product Catalog
Pressure Reducing Valve
14 Products
Product Image
Product Name
FOB Price
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Basic Info
  • Model NO.: Y410, Y416, Y425, Y110, Y116
  • Temperature: High Temperature
  • Valve Seat: Single-Seat
  • Material: Ci, CS etc
  • Transport Package: Bubble Plastic Paper + Plywood Case
  • Origin: China
  • Certification: CE
  • Connection: Thread/ Flange
  • Structure: Diaphragm/ Piston
  • Trademark: KARFAR
  • Specification: safety valve
Product Description

MODEL NO Y110 / Y116 / Y410 / Y416 / Y425
Pressure Reducing / Maintaining Valve Constant Pressure
SIZE:   DN15 ~ DN50 ( Model Y110, Y116 ) 
        DN15 ~ DN200 ( Model Y410, Y416, Y425 ) 

Δ The KARFAR Pressure Reducing / maintaining Valve is composed of body, bonnet, compression spring, stem, Piston/ Diaphragm, cylinder sleeve, seat and gasket.

Feature: It directly transfers downstream pressure on the bottom of the piston/ diaphragm, and keep a good balance between top pressure and bottom pressure.

Medium applicable: Hot water, Cold water,
                    Compressed air & oil ( after changing some accessory)

Working temperature: 0ºC ~ 90ºC , and up to 150ºC (after adjust some material)

ODEL NOY110 / Y410Y416 / Y116Y425
Working pressure1.0 Mpa1.6 Mpa2.5 Mpa
Testing pressure1.5 Mpa2.4 Mpa3.75 Mpa
Outlet pressure
adjust range
0.1 ~ 0.6 Mpa0.1 ~ 1.0 Mpa0.2 ~ 1.6 Mpa
Static Dynamic pressure difference0.080.120.15
Outlet Pressure
Adjust tolerance
Max change range
of constant outlet pressure
compared with inlet pressure
BodyGrey cast iron, Cast steel
BonnetGrey cast iron, Cast steel
Bottom coverGrey cast iron, Cast steel
DiaphragmReinforced Nylon Rubber
Compression springSilicon Manganese Steel
PistonStainless steel
Cylinder sleeveStainless steel
StemStainless steel

For more information, please leave message or contact us by following ways.
Telephone: +86-577-67318107,  67379222
Fax: +86-577-67318107

Pressure Reducing / Maintaining Valve Constant Pressure
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