changing a thermostatic radiator valve

{"title":"Brass Forged TRV Thermostatic Radiator Valve Rustproof Practical","imgUrl":"https:\/\/img.chinax.com\/nimg\/65\/ac\/9f20e10345f7e9508e2e3722405c-200x200-1.jpg","attrs":{"Price":"Negitionable","Brand Name":"Jiangting Valve","Model Number":"TRV Valve","Minimum Order Quantity":"Negotiate","Delivery Time":"30 days after receiving down payment","Certification":"CE,IOS","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"30000 Ton\/Tons per Year","Packaging Details":"standard export cartons","Name":"TRV Valve","size":"DN15\/20\/25","Usage":"Underfloor Heating","Matetrial":"Brass","Technics":"Forged,","Finish":"chrome Finish"}}

{"title":"230v NC Wax Thermal Actuator Underfloor Heating Parts For Radiator Valve","imgUrl":"https:\/\/img.chinax.com\/nimg\/84\/e7\/1eeb337eb9082abdcd3e1c54cc83-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"Saiko","Model Number":"SK-D1","Minimum Order Quantity":"100PCS","Place of Origin":"Nanjing","Payment Terms":"Western Union, T\/T, L\/C","Packaging Details":"1pc\/inner ctn 100pcs\/master ctn","Certification":"CE","Type":"Floor Heating Parts","Size":"M30*1.5","Voltage":"AC230V 50~60Hz","Feature":"Energy Saving"}}