Solar Safety Valve

100-300000 INR/Unit

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Solar Safety Valve Price And Quantity

Price 100-300000 INR/Unit
Minimum Order Quantity 1 Unit

Solar Safety Valve Trade Information

Supply Ability 100 Unit Per Month
Delivery Time 1 Week

Product Description

HYDRAULIC FEATURES

The Solar safety valve with manual hand wheel is an automatic safety valve designed to open in the event the internal pressure of the system reaches a predetermined maximum pressure (Preset Nominal Pressure Pnr)allowing the water to be released through it. The safety valve resets automatically when the internal pressure of the system returns below the predetermined maximum pressure. All the moving parts of this safety valve, including the regulating spring, are isolated from heat-transfer fluids by an industrial rubber diaphragm. The Solar safety valve with manual hand wheel satisfies the essential safety requirements stipulated in the EU Pressure Equipment Directive (PED) 97/23/EC.

Pressure :
Maximum allowable working pressure (PS)		10 bar
Preset nominal pressure (Pnr)		2.5-3-4-6-8 bar (factory set and sealed)
Minimum sealing pressure (Pc)		-5 % of the Pnr
Overpressure (Po)		10% of the Pnr
Reset value (Pf)		-20 % of the Pnr
Temperature :
Pipeline connection		160° C
Threading :
Maximum allowable		Threads according to ISO 228/1
Compatible fluids :
Generic fluids		water and Group 2 fluids
Heat transfer fluids in compliance with Italian national standards (UNI 8065 § 6)
Glycolate solutions (glycol)		50%
Requirements and tests as per :
Solar thermal energy		ISO 4126-1 § 7.2
Type Test (functional aspects) with reference to		EN 12976-2 Annex D par. 5.6.1.
Pressure test according to Annex I, Section 3.2.2 of the PED directive.
PED operating limits :
Maximum allowable temperature (TS)		160° C
Maximum allowable working pressure (PS)		10 bar
Conformity assessment procedures		Modules B and D
PED risk category		IV (CE 1115)
Flow Coefficient (K) = 0.05 - Classified as an "Ordinary Valve" under EN 10412 § 11.4.2
DESIGN
Brass Body		EN 12165 - CW617N
Head valve		Brass - EN 12164 - CW614N
Hand wheel		PA66-GF30 polyamide (nylon 66) reinforced with glass fibre
Spring and counterweight in STAINLESS STEEL		PA66 polyamide (nylon)
Diaphragm		70 Sh preshaped EPDM rubber (peroxide cured)
Sm GALVANIZED STEEL spring		EN 10270-1
Nickel plating ELECTRO DEPOSITED COATING EN 12540 (Cu/Ni5s)