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: Pressure Relief Valves (581)
: Kunkle Model 20 Safety Relief Valves (87)
Kunkle Model 215V Vacuum Relief Valves (15)
Kunkle Model 337 Safety Relief Valves (26)
Kunkle Model 537 Safety Relief Valves (50)
Kunkle Model 548 Safety Relief Valves (58)
Kunkle Model 6010 Safety Relief Valves (186)
Kunkle Model 6021 Safety Relief Valves (29)
Kunkle Model 6182 Safety Relief Valves (52)
Kunkle Model 6252 Safety Relief Valves (47)
Kunkle Model 6283 Safety Relief Valves (28)
: 1/2 in (58)
1/2 in x 1/2 in (13)
1/2 in x 3/4 in (26)
1/2 in x Top Outlet (8)
3/4 in x 3/4 in (27)
3/4 in x 1 in (42)
3/4 in x 1-1/4 in (4)
3/4 in x Top Outlet (6)
1 in x 1 in (22)
1 in x 1-1/4 in (44)
: ANSI 250 Flanged x ANSI 125 Flanged (9)
ANSI 250 Flanged x FNPT (27)
FNPT x FNPT (61)
MNPT (58)
MNPT x FNPT (373)
MNPT x Top Outlet (52)
: Air/Gas ASME Section VIII (167)
Air/Gas ASME Section VIII & XIII (10)
Air/Gas, Non-Code (20)
Hot Water ASME Section IV (50)
Liquid, Non-Code (87)
Steam ASME Section I (179)
Steam ASME Section IV & XIII (3)
Steam ASME Section IV, Air, Steam, & Gas Section VIII & XIII, (47)
Steam, Non-Code (2)
Vacuum Air Non-Code (15)
: 5 psig (4)
8 psig (2)
9 psig (2)
10 psig (6)
11 psig (3)
12 psig (2)
14 psig (2)
15 psig (39)
16 psig (2)
18 psig (2)
: Brass (58)
Bronze (406)
Cast Iron (116)
: Bronze Disc & Nozzle (41)
Bronze Nozzle, Disc & Guide (3)
Bronze Seat w/EPDM Insert (25)
Bronze Seat w/EPDM Insert & NBR O-Ring (25)
Bronze/Brass Seat (342)
EPR O-Ring (10)
SS Ball Seat (58)
Stainless Trim w/EPDM O-Ring (47)
Teflon Disc (29)

581 items

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Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 30 psig Set Pressure, Kunkle 0537H01-HM0030

CBPN:

47248

MPN:

0537-H01-HM0030

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 35 psig Set Pressure, Kunkle 0537H01-HM0035

CBPN:

281615

MPN:

0537-H01-HM0035

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 36 psig Set Pressure, Kunkle 0537H01-HM0036

CBPN:

281616

MPN:

0537-H01-HM0036

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 40 psig Set Pressure, Kunkle 0537H01-HM0040

CBPN:

281617

MPN:

0537-H01-HM0040

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 45 psig Set Pressure, Kunkle 0537H01-HM0045

CBPN:

281618

MPN:

0537-H01-HM0045

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 50 psig Set Pressure, Kunkle 0537H01-HM0050

CBPN:

281619

MPN:

0537-H01-HM0050

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 60 psig Set Pressure, Kunkle 0537H01-HM0060

CBPN:

162217

MPN:

0537-H01-HM0060

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 66 psig Set Pressure, Kunkle 0537H01-HM0066

CBPN:

61268

MPN:

0537-H01-HM0066

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 75 psig Set Pressure, Kunkle 0537H01-HM0075

CBPN:

281620

MPN:

0537-H01-HM0075

Price:

$850.84 / EA

QTY

Price:

$850.84 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 120 psig Set Pressure, Kunkle 0548C01-KM0120

CBPN:

17939

MPN:

0548-C01-KM0120

Price:

$99.62 / EA

QTY

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 125 psig Set Pressure, Kunkle 0548C01-KM0125

CBPN:

47141

MPN:

0548-C01-KM0125

Price:

$99.62 / EA

QTY

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 135 psig Set Pressure, Kunkle 0548C01-KM0135

CBPN:

281642

MPN:

0548-C01-KM0135

Price:

$99.62 / EA

QTY

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 15 psig Set Pressure, Kunkle 0548C01-KM0015

CBPN:

281633

MPN:

0548-C01-KM0015

Price:

$99.62 / EA

QTY

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 150 psig Set Pressure, Kunkle 0548C01-KM0150

CBPN:

157179

MPN:

0548-C01-KM0150

Price:

$99.62 / EA

QTY

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 165 psig Set Pressure, Kunkle 0548C01-KM0165

CBPN:

15347

MPN:

0548-C01-KM0165

Price:

$99.62 / EA

QTY

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 30 psig Set Pressure, Kunkle 0537H01-HM0030

CBPN:

47248

MPN:

0537-H01-HM0030

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 35 psig Set Pressure, Kunkle 0537H01-HM0035

CBPN:

281615

MPN:

0537-H01-HM0035

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 36 psig Set Pressure, Kunkle 0537H01-HM0036

CBPN:

281616

MPN:

0537-H01-HM0036

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 40 psig Set Pressure, Kunkle 0537H01-HM0040

CBPN:

281617

MPN:

0537-H01-HM0040

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 45 psig Set Pressure, Kunkle 0537H01-HM0045

CBPN:

281618

MPN:

0537-H01-HM0045

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 50 psig Set Pressure, Kunkle 0537H01-HM0050

CBPN:

281619

MPN:

0537-H01-HM0050

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 60 psig Set Pressure, Kunkle 0537H01-HM0060

CBPN:

162217

MPN:

0537-H01-HM0060

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 66 psig Set Pressure, Kunkle 0537H01-HM0066

CBPN:

61268

MPN:

0537-H01-HM0066

Price:

$850.84 / EA

QTY

Compare

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 75 psig Set Pressure, Kunkle 0537H01-HM0075

CBPN:

281620

MPN:

0537-H01-HM0075

Price:

$850.84 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 120 psig Set Pressure, Kunkle 0548C01-KM0120

CBPN:

17939

MPN:

0548-C01-KM0120

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 125 psig Set Pressure, Kunkle 0548C01-KM0125

CBPN:

47141

MPN:

0548-C01-KM0125

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 135 psig Set Pressure, Kunkle 0548C01-KM0135

CBPN:

281642

MPN:

0548-C01-KM0135

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 15 psig Set Pressure, Kunkle 0548C01-KM0015

CBPN:

281633

MPN:

0548-C01-KM0015

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 150 psig Set Pressure, Kunkle 0548C01-KM0150

CBPN:

157179

MPN:

0548-C01-KM0150

Prop 65:

Price:

$99.62 / EA

QTY

Compare

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 165 psig Set Pressure, Kunkle 0548C01-KM0165

CBPN:

15347

MPN:

0548-C01-KM0165

Prop 65:

Price:

$99.62 / EA

QTY

show:

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Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 30 psig Set Pressure, Kunkle 0537H01-HM0030

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 35 psig Set Pressure, Kunkle 0537H01-HM0035

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 36 psig Set Pressure, Kunkle 0537H01-HM0036

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 40 psig Set Pressure, Kunkle 0537H01-HM0040

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 45 psig Set Pressure, Kunkle 0537H01-HM0045

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 50 psig Set Pressure, Kunkle 0537H01-HM0050

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 60 psig Set Pressure, Kunkle 0537H01-HM0060

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 66 psig Set Pressure, Kunkle 0537H01-HM0066

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 75 psig Set Pressure, Kunkle 0537H01-HM0075

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 120 psig Set Pressure, Kunkle 0548C01-KM0120

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 125 psig Set Pressure, Kunkle 0548C01-KM0125

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 135 psig Set Pressure, Kunkle 0548C01-KM0135

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 15 psig Set Pressure, Kunkle 0548C01-KM0015

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 150 psig Set Pressure, Kunkle 0548C01-KM0150

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 165 psig Set Pressure, Kunkle 0548C01-KM0165

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 30 psig Set Pressure, Kunkle 0537H01-HM0030

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 35 psig Set Pressure, Kunkle 0537H01-HM0035

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 36 psig Set Pressure, Kunkle 0537H01-HM0036

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 40 psig Set Pressure, Kunkle 0537H01-HM0040

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 45 psig Set Pressure, Kunkle 0537H01-HM0045

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 50 psig Set Pressure, Kunkle 0537H01-HM0050

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 60 psig Set Pressure, Kunkle 0537H01-HM0060

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 66 psig Set Pressure, Kunkle 0537H01-HM0066

Kunkle 537 Cast Iron Safety Relief Valve, 2 in FNPT x 2-1/2 in FNPT Side Outlet, Bronze Seat with EPDM Insert & NBR O-Ring, Hot Water ASME Section IV, 75 psig Set Pressure, Kunkle 0537H01-HM0075

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 120 psig Set Pressure, Kunkle 0548C01-KM0120

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 125 psig Set Pressure, Kunkle 0548C01-KM0125

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 135 psig Set Pressure, Kunkle 0548C01-KM0135

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 15 psig Set Pressure, Kunkle 0548C01-KM0015

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 150 psig Set Pressure, Kunkle 0548C01-KM0150

Kunkle 548 Bronze Safety Relief Valve, 1/2 in MNPT, SS Ball Seat, Air/Gas ASME Section VIII Service, 165 psig Set Pressure, Kunkle 0548C01-KM0165

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