Spirax-Sarco BXRA 1/2" NPT normally-closed, single seat bronze temperature control valve for cooling.

Spirax-Sarco BX2 1/2" NPT normally-open, single seat bronze temperature control valve for heating.

Spirax-Sarco BX3 1/2" NPT normally-open, single seat bronze temperature control valve for heating.

Spirax-Sarco BX4 1/2" NPT normally-open, single seat bronze temperature control valve for heating.

Spirax-Sarco BX6 1/2" NPT normally-open, single seat bronze temperature control valve for heating.

Spirax-Sarco BMRA 1/2" ANSI 300 flanged reverse-acting, normally-closed, single seat cast steel temperature control valve for cooling. This valve has a Cv of 1.92.

Spirax-Sarco BM2 1/2" ANSI 300 flanged normally-open, single seat cast steel temperature control valve for heating. This valve has a Cv of 0.44.

Spirax-Sarco BM3 1/2" ANSI 300 flanged normally-open, single seat cast steel temperature control valve for heating. This valve has a Cv of 0.74.

Spirax-Sarco BM4 1/2" ANSI 300 flanged normally-open, single seat cast steel temperature control valve for heating. This valve has a Cv of 1.20.

Spirax-Sarco BM6 1/2" ANSI 300 flanged normally-open, single seat cast steel temperature control valve for heating. This valve has a Cv of 1.92.

Spirax-Sarco SBRA 1/2" NPT normally-closed bronze temperature regulating valve that opens with rising temperature for cooling.

Spirax-Sarco SB 1/2" NPT normally-open bronze temperature regulating valve that closes with temperature rise for heating, single seat.

Spirax-Sarco SBRA 1/2" NPT normally-closed bronze temperature regulating valve that opens with rising temperature for cooling. Single seat with optional 1/8" (Cv .44) bleed bypass.

Spirax-Sarco SBRA 3/4" NPT normally-closed bronze temperature regulating valve that opens with rising temperature for cooling.

Spirax-Sarco SB 3/4" NPT normally-open bronze temperature regulating valve that closes with temperature rise for heating, single seat.

Spirax-Sarco SBRA 1" NPT normally-closed bronze temperature regulating valve that opens with rising temperature for cooling.

Spirax-Sarco SB 1" NPT normally-open bronze temperature regulating valve that closes with temperature rise for heating, single seat.

Spirax-Sarco SBRA 1" NPT normally-closed bronze temperature regulating valve that opens with rising temperature for cooling. Single seat with optional 1/8" (Cv .44) bleed bypass.

Spirax-Sarco NS 2-1/2" NPT normally-open, self-acting bronze temperature control valve that closes with temperature rise for heating, double seat.

Spirax-Sarco NS 2-1/2" ANSI 150 flanged normally-open, self-acting bronze temperature control valve that closes with temperature rise for heating, double seat.

Spirax-Sarco NSRA 2-1/2" NPT normally-closed, self-acting bronze temperature control valve that opens with temperature rise for cooling, double seat.

Spirax-Sarco NS 3" ANSI 150 flanged normally-open, self-acting bronze temperature control valve that closes with temperature rise for heating, double seat.

Spirax-Sarco NS 3" NPT flanged normally-open, self-acting bronze temperature control valve that closes with temperature rise for heating, double seat.

Spirax-Sarco NSRA 3" ANSI 300 flanged normally-closed, self-acting bronze temperature control valve that opens with temperature rise for cooling, double seat.

Spirax-Sarco NSRA 3" ANSI 150 flanged normally-closed, self-acting bronze temperature control valve that opens with temperature rise for cooling, double seat.

Spirax-Sarco KA43 1/2" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating, single seat. This valve has a Cv of 3.36.

Spirax-Sarco KA43 3/4" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating, single seat. This valve has a Cv of 5.54.

Spirax-Sarco KA43 1" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating, single seat. This valve has a Cv of 11.4.

Spirax-Sarco KA43 1-1/4" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating, single seat. This valve has a Cv of 19.2.

Spirax-Sarco KB43 1-1/4" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating. Single seat with phosphor bronze pressure balancing bellows. This valve has a Cv of 19.2.

Spirax-Sarco KC43 1-1/4" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating. Single seat with phosphor bronze pressure balancing bellows. This valve has a Cv of 19.2.

Spirax-Sarco KB43 1-1/2" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating. Single seat with phosphor bronze pressure balancing bellows. This valve has a Cv of 27.6.

Spirax-Sarco KB43 1-1/2" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating. Single seat with stainless steel pressure balancing bellows. This valve has a Cv of 27.6.

Spirax-Sarco KA43 2" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating, single seat. This valve has a Cv of 39.6.

Spirax-Sarco KB43 2" ANSI 300 flanged normally-open cast steel temperature control valve that closes with temperature rise for heating. Single seat with phosphor bronze pressure balancing bellows. This valve has a Cv of 39.6.

Spirax-Sarco KX51B 1" NPT normally-closed bronze temperature control valve, with fixed bleed, that opens with temperature rise for cooling, single seat.

Spirax-Sarco KX51B 1-1/4" NPT normally-closed bronze temperature control valve, with fixed bleed, that opens with temperature rise for cooling, single seat.

Spirax-Sarco KY51 1-1/4" NPT normally-closed bronze temperature control valve, that opens with temperature rise for cooling, single seat. This valve incorporates a pressure balancing bellows, which enables the valve to operate against higher differential pressures.

Spirax-Sarco KX51B 1-1/2" NPT normally-closed bronze temperature control valve, with fixed bleed, that opens with temperature rise for cooling, single seat.

Spirax-Sarco KY51 1-1/2" NPT normally-closed bronze temperature control valve, that opens with temperature rise for cooling, single seat. This valve incorporates a pressure balancing bellows, which enables the valve to operate against higher differential pressures.

Spirax-Sarco KX51B 2" NPT normally-closed bronze temperature control valve, with fixed bleed, that opens with temperature rise for cooling, single seat.