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Shanghai Biaoyi Valve Co., Ltd.

Pressure Reducing Valve, Valve, RP-6 Series Steam Pressure Reducing Valve (PRV) manufacturer / supplier in China, offering RP-6 Series Steam Pressure Reducing Valve (PRV), 500X Pressure Relief, Pressure Sustaining Valve, Y43h/Y Piston Steam Reducing Valve (PRV) and so on.

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Supplier Homepage Product Pressure Reducing Valve RP-6 Series Steam Pressure Reducing Valve (PRV)

RP-6 Series Steam Pressure Reducing Valve (PRV)

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 58000set/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Model NO.: RP-6
  • Temperature: Ordinary Temperature
  • Valve Seat: Single-Seat
  • Material: Cast Iron
  • Transport Package: Plywood Case
  • Origin: Shanghai
  • Certification: RoHS, CE
  • Connection: Flange
  • Structure: Piston
  • Trademark: BIAOYI
  • Specification: DN15-DN80
  • HS Code: 8481804090
Product Description

RP-6 Series Steam Pressure Reducing Valve (PRV)

RP-6 Series Steam Pressure Reducing Valve (PRV)

Flanged RP-6 Series Steam Pressure Reducing Valve (PRV)
RP-6 Series Steam Pressure Reducing Valve (PRV)

Threaded RP-6 Series Steam Pressure Reducing Valve (PRV)

This series PRV is pilot piston type pressure reducing valve, mainly composed of main valve and pilot valve. The main valve consists of valve seat, main valve plug, piston, cylinder sleeve, and spring. The piston valve consists of valve seat, plug, diaphragm, spring and adjusting spring.

Set the outlet pressure through adjusting spring, sense the change of pressure of outlet with membrane, adjust the flow area of throttling part of main valve through open and close of pilot valve and drive the piston, to realize the function of reducing and regulating valve.

The product made following improvement on the basis of normal pressure reducing valve, enlarge the piston area, change the throttle structure, change the sealing manner, improve the pilot structure and manner of adjusting spring, thus to improve the performance of the product.

RP-6 Series Steam Pressure Reducing Valve (PRV)
  • Improve the sensing effect to outlet pressure change, increase the sensitivity, greatly reduce the pressure deviation caused by upper stream pressure change and flow change.
  • Improve the distribution of flow line, reduce the noise.
  • Improve the structure of sealing surface; prolong the service life of sealing surface.

The product is mainly applied on steam piping, especially the steam piping with big change of pressure and flow.


Nominal Pressure (MPa)1.01.6
Casing Body Test Pressure(MPa)1.52.4
Sealing test pressure (MPa)1.01.6
Max. Inlet Pressure (MPa)1.01.6
Outlet Presure Range (MPa)0.04-0.60.04-1.0
Min. Pressure Difference (MPa)0.050.07
Leakage QuantityGB12245-1989


Name of PartMaterial of Parts
body, bonnet, bottom capWCB
Seat, Plug410 S.S.
Cylinder sleeve, PistonAl-Fe bronze
Piston RingPPL
Pilot Seat, pilot Plug410 S.S.
SpringASTM 6150
Pilot Main SpringASTM 6150
Adjust SpringUNS G92600

Flow Coefficient (Cv)



RP-6 Series Steam Pressure Reducing Valve (PRV)

Dimensions of Flanged RP-6 Series Steam Pressure Reducing Valve (PRV)
Nominal Diameter DNDimensionsConnection dimensions
LHH1PN 1.0MPaPN 1.6MPa
RP-6 Series Steam Pressure Reducing Valve (PRV)

RP-6 Series Steam Pressure Reducing Valve (PRV)
Shanghai Biaoyi Valve Co., Ltd. is located in Shanghai Qingpu industrial zone , mainly engaged in butterfly valve, check valve, strainer, gate valve, globe valve, ball valve,hydraulic control valve, balance valve, pressure reducing valve, regulating valve,and diverse pipe fittings, which covers over 100 series and 2000 products. The valve body has cast iron, ductile iron, carbon steel, alloy steel, stainless steel, copper and other materials. We could also machining products according to your standards. Our products are widely used in construction, water supply and drainage, fire control, electric power, metallurgy, petrochemical, gas, etc.

The factory covers an area of 35000 Square meters,with total assets of 51 million yuan; 300 staffs on service, including 17 senior engineer. We enjoyed ISO9001 international quality management system certificate and WRAS, CE, TS, etc. And Product could accord with ANSI/AWWA or other special requirements. Biaoyi is the first-level supply network member of China National Petroleum Corporation, sinopec authorized manufacturer, the member of China gas association, the China valve association member, China construction metal structure association, water supply and drainage director unit, the national power company ,power plant parts supply network member unit.

We always adhere to the philosophy of "survival from quality and development from technology,occupying market by famous brand",and innovate perpetually.

Company Name : Shanghai Biaoyi Valve Co.,LTD.   Contact: Mr. Liu  Tie  +86 139 1822 9256
Company Address : No.399 Songxiu Road,Qingpu Industrial Zone,Shanghai,China, P.C.201703
Telephone Number : +86-21-5975 8918  Fax Number : + 86-21-59758816
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