Check valves

Female threads, PN 16, spring loaded, for every mounting position,

operating temperature: max. 90°C, body: brass, spring: stainless steel, seal: NBR

Check valve with flanges, flange connection: DN 50 - 150: PN 16, DN 200 - 300: PN 10 or PN 16,
inside stem, face to face according to EN 558-1 series 48 (F6),
body: EN-GJS-500-7 (GGG-50), EKB-coating min 250μm according to GSK,
disc: EN-GJS-500-7 (GGG-50), EPDM covered
Type PA-4100.125.E: shaft: AISI 420
Type PA-4100.126.E: shaft: stainless steel AISI 316

Female threads, PN 40, y-pattern, spring loaded, for every mounting position,

operating temperature: max. 200°C, body: 1.4408, spring: stainless steel, seal: PTFE

Check valve with flanges, flange connection: DN 50 - 150: PN 16, DN 200 - 300: PN 10 or PN 16,
inside stem, face to face according to EN 558-1 series 48 (F6),
body: EN-GJS-500-7 (GGG-50), EKB-coating min 250μm according to GSK,
disc: EN-GJS-500-7 (GGG-50), EPDM covered
Type PA-4150.125.E: shaft: AISI 420
Type PA-4150.126.E: shaft: stainless steel AISI 316

Female threads, PN 16, y-pattern, spring loaded, for every mounting position,

operating temperature: max. 90°C, body: brass, spring: stainless steel, seal: NBR

Check valve with flanges, flange connection: DN 50 - 150: PN 16, DN 200 - 600: PN 10 or PN 16,
inside stem, face to face according to EN 558-1 series 48 (F6),
body: EN-GJS-500-7 (GGG-50), EKB-coating min 250μm according to GSK
Type PA-4200.127:, seat: bronze, shaft: AISI 420, opturator: AISI 420
Type PA-4200.126: seat/shaft/opturator: stainless steel AISI 316

Optional also in PN 25 and PN 40 available.

Female threads, PN 16, straight type, spring loaded, for every mounting position,

operating temperature: max. 90°C, body: brass, spring: stainless steel, seal: NBR

Check valve with flanges, flange connection: DN 50 - 150: PN 16, DN 200 - 600: PN 10 or PN 16,
inside stem, face to face according to EN 558-1 series 48 (F6),
body: EN-GJS-500-7 (GGG-50), EKB-coating min 250μm according to GSK
Type PA-4250.127:, seat: bronze, shaft: AISI 420, opturator: AISI 420
Type PA-4250.126: seat/shaft/opturator: stainless steel AISI 316

Optional also in PN 25 and PN 40 available.

Female threads, PN 16, for horizontal mounting, operating temperature: max. 230°C,

body: 1.4408, trim: 1.4408, metal seated

Check valve, wafer type, face to face according to DIN 3202, part 3, Reihe 4, serial with spring,

for every mounting position, metal seated, body: 1.4408, plug: 1.4408

Female threads, PN 16, for horizontal mounting, operating temperature: max. 70°C,

body: brass, trim: brass, seal: NBR

Check valve, wafer type, face to face after DIN 3202, part 3, Reihe K4 (RK 49 after DIN 3202, part 3, Reihe K5),

serial with spring, for every mounting position, metal seated,

softseated and special springs on request!

RK 71: body: brass CW 617 N, plug: stainless steel 1.4571, PN 6/16,

operating temperature: -60°C ... 250°C

RK 41: body: brass 2.0540, plug: stainless steel 1.4571, PN 6/16, operating temperature: -60°C ... 300°C

RK 44: body: bronze CC480 K-GS, from DN 125 EN-JL1040, plug: stainless steel 1.4571, from DN 125 bronze

CC480 K-GS, PN 10/16, operating temperature: -20°C ... 250°C

RK 86: body: stainless steel 1.4317, from DN 125 steel 1.0619, plug: stainless steel 1.4571, from DN 125 1.4006,

PN 10/40, operating temperature: -10°C ... 350°C (from 300°C Nimonic-spring necessary)

RK 86A: body: stainless steel 1.4408, plug: stainless steel 1.4571, PN 10/40,

operating temperature: -200°C ... 550°C (from 300°C Nimonic-spring necessary)

RK 49: body: stainless steel 1.4581, from DN 80 1.7357, plug: stainless steel 1.4986, from DN 80 1.4922,

PN 63/100/160, operating temperature: max. +550°C

Dual plate check valve, wafer type, face to face according to DIN 3202, part 3, Reihe K3, serial with spring,

temperature: max. 180°C, body: 1.4408, disc: 1.4408, seat: Viton

Check valve, wafer type, serial with spring, for every mounting position, metal seated,

RK 29A: body: 1.4571, plug: 1.4571, spring: Nimonic, operating temperature: -200°C ... 500°C

Dual plate check valve, wafer type, face to face according to DIN 3202, part 3, Reihe K3, serial with spring,

temperature: max. 120°C, body: GG-25, disc: 1.4308, seat: EPDM

G 1 1⁄4” – 3”, pressure: PN 10, threaded ends, body: GG-25 EKB, ball: NBR coated,

temperature: -20°C ... +70°C