Series 253

Safety relief valves for solar systems.

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Product Description

Safety relief valves for solar systems.
Oversized drain outlet.
TÜV approved according to TRD 721 - SV 100 § 7.7.

Technical data

Medium temperature range: -30–160 °C

PN (Nominal pressure): PN 10

Finish: chrome

Maximum percentage of glycol: 50 %

Medium: glycol solutions, technical water

Material: brass

Note

The automatic air vent must be shut off after the system has been filled.

Certifications

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Application diagrams

20.15 - CHS with null flow rate boiler and DHW production with storage and sola…

Drawings and specifications

Part number	Connection	Connection	Setting
253042	G 1/2" (ISO 228-1) F inlet	G 3/4" (ISO 228-1) F end outlet	2,5 bar
Maximum discharge rating 50 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253042%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253042%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253042%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: G 1/2" (ISO 228-1) F, inlet. connection: G 3/4" (ISO 228-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 2,5 bar. Maximum discharge rating: 50 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: glycol solutions, technical water. Material: brass.
253043	G 1/2" (ISO 228-1) F inlet	G 3/4" (ISO 228-1) F end outlet	3 bar
Maximum discharge rating 50 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253043%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253043%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253043%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: G 1/2" (ISO 228-1) F, inlet. connection: G 3/4" (ISO 228-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 3 bar. Maximum discharge rating: 50 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: glycol solutions, technical water. Material: brass.
253044	G 1/2" (ISO 228-1) F inlet	G 3/4" (ISO 228-1) F end outlet	4 bar
Maximum discharge rating 50 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253044%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253044%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253044%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: G 1/2" (ISO 228-1) F, inlet. connection: G 3/4" (ISO 228-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 4 bar. Maximum discharge rating: 50 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253046	G 1/2" (ISO 228-1) F inlet	G 3/4" (ISO 228-1) F end outlet	6 bar
Maximum discharge rating 50 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253046%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253046%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253046%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: G 1/2" (ISO 228-1) F, inlet. connection: G 3/4" (ISO 228-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 6 bar. Maximum discharge rating: 50 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: glycol solutions, technical water. Material: brass.
253048	G 1/2" (ISO 228-1) F inlet	G 3/4" (ISO 228-1) F end outlet	8 bar
Maximum discharge rating 50 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253048%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253048%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253048%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: G 1/2" (ISO 228-1) F, inlet. connection: G 3/4" (ISO 228-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 8 bar. Maximum discharge rating: 50 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253040	G 1/2" (ISO 228-1) F inlet	G 3/4" (ISO 228-1) F end outlet	10 bar
Maximum discharge rating 50 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253040%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253040%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253040%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: G 1/2" (ISO 228-1) F, inlet. connection: G 3/4" (ISO 228-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 10 bar. Maximum discharge rating: 50 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253052	Rp 3/4" (EN 10226-1) F inlet	Rp 1" (EN 10226-1) F end outlet	2,5 bar
Maximum discharge rating 100 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253052%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253052%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253052%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: Rp 3/4" (EN 10226-1) F, inlet. connection: Rp 1" (EN 10226-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 2,5 bar. Maximum discharge rating: 100 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253053	Rp 3/4" (EN 10226-1) F inlet	Rp 1" (EN 10226-1) F end outlet	3 bar
Maximum discharge rating 100 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253053%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253053%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253053%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: Rp 3/4" (EN 10226-1) F, inlet. connection: Rp 1" (EN 10226-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 3 bar. Maximum discharge rating: 100 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253054	Rp 3/4" (EN 10226-1) F inlet	Rp 1" (EN 10226-1) F end outlet	4 bar
Maximum discharge rating 100 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253054%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253054%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253054%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: Rp 3/4" (EN 10226-1) F, inlet. connection: Rp 1" (EN 10226-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 4 bar. Maximum discharge rating: 100 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: glycol solutions, technical water. Material: brass.
253056	Rp 3/4" (EN 10226-1) F inlet	Rp 1" (EN 10226-1) F end outlet	6 bar
Maximum discharge rating 100 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253056%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253056%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253056%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: Rp 3/4" (EN 10226-1) F, inlet. connection: Rp 1" (EN 10226-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 6 bar. Maximum discharge rating: 100 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253058	Rp 3/4" (EN 10226-1) F inlet	Rp 1" (EN 10226-1) F end outlet	8 bar
Maximum discharge rating 100 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253058%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253058%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253058%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: Rp 3/4" (EN 10226-1) F, inlet. connection: Rp 1" (EN 10226-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 8 bar. Maximum discharge rating: 100 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.
253050	Rp 3/4" (EN 10226-1) F inlet	Rp 1" (EN 10226-1) F end outlet	10 bar
Maximum discharge rating 100 kW
2D drawings dwg Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253050%20%28dwg%29.dwg dxf Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253050%20%28dxf%29.dxf 3D models igs Share this file Download this file Share Facebook Linkedin Twitter https://www.caleffi.com/sites/default/files/media/external-drawing/253050%20%28igs%29.igs bim Tender text Safety relief valves for solar systems. Oversized drain outlet. TÜV approved according to TRD 721 - SV 100 § 7.7. connection: Rp 3/4" (EN 10226-1) F, inlet. connection: Rp 1" (EN 10226-1) F, end outlet. Medium temperature range: -30–160 °C. Setting: 10 bar. Maximum discharge rating: 100 kW. PN (Nominal pressure): PN 10. Finish: chrome. Maximum percentage of glycol: 50 %. Medium: technical water, glycol solutions. Material: brass.

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