Product Description:
Connection dimension of flange:
PN1.0MPa, PN1.6MPa to GB4216
PN2.5MPa to GB9113
Purpose:
For the pipeline of fire fighting, domestic water, industrial water supply and sewage treatment. Can quickly get response to the pressure fluctuation and quickly release in order to prevent from the damage of pipe line and equipment caused by quickly increasing the pressure. It is very suitable for pressure relief of the fire systems in the high buildings. Can ensure the upper water supply pressure of the main valve.
Suitable temperature: ≤ 80º C
Advantages:
. Exactly keep the safe stable pressure. Once exceeding the pressure, the pressure-relief valve can fully open and in time relieve the pressure.
. The speed of closing is adjustable. The pressure fluctuation can be dispelled.
. The diaphragm driving mechanism can reduce the hysteresis effect at the least.
. Can be installed in any position. It is unnecessary to change the preset pressure. Can examine and repair it after disma ntling from the pipeline.
Pressure rating: PN (MPa)
1.0 1.6 2.5
Tests:
Test to JB/T9092, GB/T13927
Nominal pressure: PN(MPa)
Body: PN X l. 5
Seal: PN X l. 1
Materials:
Body: Cast iron, ductile iron, carbon steel
Bonnet: Cast iron, ductile iron, carbon steel
Compression spring: Silicon manganese steel
Cylinder liner: Stainless steel
Diaphragm clamping: Ductile iron
Plate
Diaphragm seat: Cast iron, ductile iron, carbon steel
Piston: Ductile iron, bronze
Diaphragm: NBR rubber
O-ring: NBR rubber
Stem: Stainless steel
Disc: Ductile iron, bronze
Gasket: NBR rubber
Gasket: Clamping Ductile iron, bronze
Plate
Shangyu Group Co., Ltd. has been engaged in the valves and pipe fittings industry since 1970. We are leading the way of Chinese valve industry after over 40 years of development.
Our primary goal is to provide you with a safe, secure environment to industrial area.
Our scale:
Plant area - 58000m2
Total staff - 628
Engineering technicians - 12
Advanced equipments - 258
Annually production capacity -- 6000Tons
Main products:
Rubber lined valve series-NR, IIR, EPDM, CR, NBR, FKM, SI etc.
Fluorine lined valve series-PFA, PTFE, FEP, PCTFE, PVDF, PO etc.
Resilient seated gate valve series
Hydraulic supply and drainage valve series
Gate valve series
Globe valve series
Check valve series
Ball valve series
Butterfly valve series
Diaphragm valve series
Plug valve series
Special valve series
Plastic valve series
Pipe fittings
Nominal diameter: 3/8"~80" (DN10-2000)
Nominal pressure: CL150~CL2500 (PN1.0~32MPa)
Standards: API, ANSI, ISO, JIS, DIN, BS, GB standards or per request
Operation: Manual, Electric, Pneumatic, Hydraulic, Hydro-pneumatic & Computer controlled
Main certificates and honors:
ISO 9001
ISO 14001
OHSAS 18001
API 6D-0501
CE
TS
We hereby sincerely welcome customers at home and abroad to cooperate with us for a brilliant future.